Hey Jason take it easy buddy and look after yourself too! Nice product review and shot of moon looked good but last shot is better than nothing. Looking forward to seeing the planets again and hopefully get a shot of Saturn. 2x Barlow lens is best but this 5x one looks interesting as long.you don't go crazy but we all like to try crazy things 8n astronomy! Take care and stay safe too plus clear skies buddy!
Hey Bushcraft, It's the joy's of turning 50 obviously I'm not a fit as I used to be🤣... Yes you have to be careful with high powered barlow's, unfortunately it's a common mistake with beginners.. Take care pal.. Clear skies🙂
looks like that retaining ring might work as a field stop too. i was wondering about those strange high power barlows, makes sense its more for the astrophoto application. i once put my 5.5mm ep into a 2x barlow, into the 1000mm fl, 120mm obj refractor. aimed at the moon. well, i wont do it again! 🤪😄 this was hilarious! awesome video. But im sure its a great barlow if you got results like that in a phone pushed beyond limits👍
I take it you have a standard 120mm f8.3 achromat? The synta 120ED scopes are 900mm f7.5 The.scope itself.was more the reason,.other than the fact that 5.5 in a 2x in that scope takes it almost 2x more than the 240x theoretical maximum. You need a really slow achromat to be able to push much past the.max. or an apochromatic refractor. I am looking for a meade 5.5mm UWA, is that the eyepiece you are talking about?
I just used my first telescope for the first time last night and it was an awesome experience! Celestron StarSense Explorer 8” Dobsonian. I couldn’t help but be skeptical of the StarSense app but it actually worked flawlessly. Thanks for all of these great videos and hope you get better soon! Also thanks for recommending a moon filter. The telescope package came with a 25mm eyepiece and I also ordered a 9mm eyepiece with it. Definitely open to buying more eyepieces but honestly my next big purchase is going to be a night vision device setup which not only works for astronomy but also other hobbies of mine.
Guys, HERE is Our TRUE Savior YaH The Heavenly FATHER HIMSELF was Who they Crucified for our sins, NOT jesus, and “HERE IS THE PROOF” From the Ancient Semitic Scroll: "Yad He Vav He" is what Moses wrote, when Moses asked YaH His Name (Exodus 3) Ancient Semitic Direct Translation Yad - "Behold The Hand" He - "Behold the Breath" Vav - "Behold The NAIL"
on my 8 inch I pretty much only use my 25 mm pared with 2x Barlow and find it's perfect for mostly everything Mars tho lately I'll use a 25mm and 2 2x Barlow
@@crnocommentary Huh I wasn’t even aware that you could stack barlows if that’s what you’re talking about but it’s an interesting idea. I don’t even have a barlow at the moment but did just order a 4mm eyepiece which would bring my stash to a 4mm, 9mm, and 25mm. I think that should cover all my bases at least for now. Suppose I could have went with a 2x barlow when I just had the 25mm and 9mm eyepieces because that would essentially also give me a 12.5mm and 4.5mm but I’d rather pay the lower price for the dedicated 4mm eyepiece and get that tiny bit more magnification while also paying less and honestly I doubt I’d use the barlow with the 25mm much anyway. Who knows what the future holds though. Your setup sounds great. Honestly my biggest issue at the moment is managing all the eyepieces, caps, etc while observing the sky. Maybe need to bring some kind of tray out or something just to have everything organized. To be clear I think it’s great to use a barlow with a 25mm but don’t personally see myself doing that in the moment VS just switching to the dedicated 9mm. I mean I could order a barlow right now but as I said earlier I’m already having some conflict with organization at the moment lol
I compared a lot of cheap 5x lenses. But none could beat the quality of two inexpensive barlow lenses 2x (SVBony) and 3x (DATYSON). Even though this combination gives a 6x increase in focal length, the picture quality is significantly better than any cheap 5x 🙃🔍👌 But in general, yes, I agree. Such lenses are mainly needed only when shooting with a camera. For the visual they are poorly suited. Take care, Jay. And have a clear skies 😀🤝😃
SVNONY, EYSDON, DATYSON and SKYOPTICS use the same equipment, all are from the same factory, only the brand name changes. This happens a lot in CHINA, a factory makes the product and several companies buy it, name it and charge different prices. I have an electronics store and I import products from CHINA, I already know that well.
@@glebsiz2122 of course you can if they fit into each other. Some lenses have different fit. For example, a 2x lens has a very deep fit. Therefore, a 3x lens can be installed into 2x, but 2x in 3x will not work 🙃👌
Great video. However, I caught something in your video at 10:22. You mentioned that small-sensor cameras need the extra boost. It's actually the opposite! The larger the sensor, the wider and less "zoomed in" the view is. So a 5× Barlow lens has better use in small-aperture, long focal length telescopes in a full-frame DSLR than a crop-sensor camera such as what you showed. A telescope without the eyepiece just acts as a larger lens for a DSLR or mirrorless camera. That is why you see lenses for them marked in millimeters rather than magnification, as it is the focal length of the lens. Actually judging the magnification is trickier though, as it depends on the lens and the sensor. I'm a Canon user, so I'll use their standards. For an APS-C crop sensor camera such as the 7D Mark II, on an EF lens (their full-frame lens) the focal length will be equivalent to 1.6× the posted focal length, but using an EF-S lens on the 7DMII will give you the posted focal length. A full-frame camera will give the equivalent of around a 24mm eyepiece. As a general rule for any camera, measure the short side of your sensor, divide the focal length of the telescope by that, and that'll tell roughly around the magnification you're going to get.
Every man overcompensates in different ways xD You just gave me an idea, and I was worried about those screws damaging the lenses. Apart from sanding a bit, cut a tiny piece of leather (I have some scraps around) and stick it to the tip of the screw with CI glue. And yes, I bought the 5 x cuz it was cheaper than the 2x (Amazon deals). What do you think about the Astromasater accesory kit? Right now it is 66 bucks and comes with: 15mm Kellner Eyepiece - 1.25” / 6mm Plossl Eyepiece - 1.25” / 2X Barlow Lens with T-threads - 1.25” / #80A Blue Filter - 1.25” / #25 Red Filter - 1.25” / Moon Filter - 1.25” It seems a pretty good deal which should cover my needs (beginner) for a few years I guess!
I have an Orion 6 inch dob with the full SVBONY redline set and a celestron 2x barlow. What is the difference in image quality in using a 6 mm without a barlow vs a 15 mm with a 2x barlow. I am still not sure what the point of the barlow is if you can get similar magnification with higher powered eyepieces. I have a hard time seeing the difference through my eyepiece except that the barlow has a more narrow field of view.
Hi. Thank you for a great review. I have some questions about the svbony cameras. I’m going to buy my first astronomy camera and I have decided to buy a svbony. Is it stupid to go for the cheaper one? Have you tested the 305? When I look at reviews on UA-cam on the svbony cameras it’s difficult to say if they are good ore bad, everyone say different things about them. I hope you can help me out. Best regards Fredrik.
Yes of course brother... you know what, I have a 114mm newtonian reflector telescope and also it is very useful for planetary observations.. I live in Colombo, Sri Lanka, which is the most heavily light polluted and air polluted city in Sri Lanka.. that's definitely fine for planetary observations.. so use your 130mm telescope to observe the planets.. your beautiful 130 will good at all.. galaxies, nebulas ( messier objects are really amazing targets ).. all the best my dear friend..❤ ( and sorry if my English was not good..😄)
Hello Leon, Like others have said YES! it's great for all the inner planets.. If you have a look on my main page in the playlist section under observations you will see what you can see with the telescope.. Enjoy😀
I am a massive fan of the SV137 2x and 3x. I've also used the 2x ED Barlow; also fantastic. But this 5x is rubbish. It's clear enough, but it's not 5x (from what I can see) - more like 2.5x. I have it lying around, so maybe I should conduct more tests. I haven't watched your video yet because I wanted to post my findings before watching. Please continue with your reviews.
Excuse. Question. Barlow SV bony x 5 sur télescope 🔭 SV bony Focal 70 mm avec oculaire 23 mm. Sa multiplie combien ? Pour lune 🌒 ou Vénus. Ou Saturne avec SV bony 501 p. Focal 70. J'avais acheté Aliexpress. Télescope 🔭 SV bony 501p Focal 60 . Et SV bony Focal 70 aussi. Bon matériel SV bony. Et accessoires.
Hi Jason Thanks for the video. My set up: 254mm reflector 1000mm focal length . Would the 5 * Barlow be better viewing for Mars ? Would the now FL 4 be blown out too much ? Camera is zwo 662 Mc or just for eye piece Only just got into this 4 months ago. Talk about addictive 😂 Cheers.
Thanks Jason very good review and very good info. I like that you include example photos. For a future video idea i would like to see how to control Humidity or condensation on the telescope, where i live the humidity is very high and when the nights begin to get cooler this really cuts down viewing time and causes other problems is there a cheap and effective way to help this problem? P.S. take care of the leg and get well soon!!!
Hello Jason, Thank you my friend. Humidity is something I've not had problems with in the past so for a quick cheap fix I'm honestly not quite sure... You can get/make little air cooling fans for larger Newtonian's I don't know if that would help , and of course make sure you are setting up your telescope outside well in of advance of when you intend to use it to climatise the air inside the tube, a good hour or more depending on the size of the telescope. Hope you manage to sort it pal.
@@smalloptics753 Thanks Jason, yes good advice i will set up my telescope ahead of time for a couple of hours before, i will also try to make a dew shield from plastic coated cardboard, i know it will cut the field of view down a little but everything has trade offs.
Hey guys I could really use some help with something. I want to get a celestron Telescope but I also don't want to have to buy a new barlow lens as I have 2 perfectly good ones but the are from saxon.
My one funny thing that happened is that I didnt look around the website where I bought my telescope enough and I bought a ``Bresser Spica 130/1000 EQ3 reflector (telescope I am using right now) altough I could of bought a 150/1000 for only 30 Euros more😅😅. And btw love ya and your content.
I've had this exact one for almost a year, and I'd say you gave it a fair review Jason, it won't work every night as 'the seeing' makes such a difference to whether it can be used, but when it's excellent seeing, it can be very good.
Hey. I have a reflector telescope (130mm) for 5 years now, but I am really concerned that I have not been taking care of it. First of all I don't use it that much (for months) and I am worried about dust. Is there any way to store it without in decreasing the quality or something? Also yesterday I was observing the moon, Saturn and Jupiter and I noticed that on my 10mm lens there were small particles that were visible when observing the moon. I couldn't notice those while observing the planets, what should I do? Also I think the little screws on the eyepieces are broken because one doesn't stay tight while the other one does. Overall I am very paranoid about my telescope, my eyepieces and even the mirror. Is there any advice?
I have a 130x900 reflector and even with the dust cover on particles will always find a way inside the tube. I recently removed my primary mirror and cleaned it (Small Optics has an excellent video on how to do that). I had not used mine in a while (well over a year) and couldn't believe how much dust was on it. I now remove the telescope and store it vertically inside a closet with the primary mirror at top and secondary mirror closest to ground with a soft cotton cloth loosely draped over the secondary. Maybe a small amount of cling wrap over both ends. You never know when you will use it again. Sometimes it is months apart depending on weather. Tomorrow I am picking up a new refractor 102x660. Was suppose to be today because Saturn is at opposition today but I'm also taking my reflector in so the guys at the telescope shop can give it a once over and collimate it for me. My advice would be to take your reflector to a shop if you have one nearby. It's not just a job for these guys it's also their hobby and they are always more that willing to help. I did buy a laser collimator but I have zero faith in it. They are hard to calibrate...
It's always best to try and avoid dust, more critical in astro photography than visual, a bit of dust on the primary will have little effect and certainly won't be visible, a bit like a bit of dust in a camera lens. Eye pieces is a different ball game as this is the point of focus, in imaging dust on your sensor will show dust on your primary won't, visual you may see the dust in the eye piece but will not make it unusable. I worry more about dust on my cameras/sensors than on the optics.
Ugh. Synta 130mm x900mm reflectors have a spherical mirror, and that is a little.fast/big to be diffraction limited.with a sphere. It works at 114mm which is f8. The larger.the aperture gets, the longer the focal ratio needs to be to get diffraction limited with a sphere. But probably still better than a bird jones like an astromaster 127. One of the first things i read about 20 years ago was to get the orion spaceprobe 130st, which is f5 parabolic, rather than the regular spaceprobe 130 f6.9 because of the spherical mirror, and longer tube putting more.stress on the mount. Those were synta scopes, and the skywatcher are the house brand of synta, and still using the same basic designs and optical prescription. I think a 130 would need to be around f9 to be ok with a spherical mirror.
Jason please help I went in the garden for the first time with my 130mm explorer to the east south east I saw a very bright object and I think it was Jupiter.i couldn’t do it for long as my back bad but was it Jupiter.i used my svbony 20mm eyepiece.is it luck or am I dreaming?
If you can give date time it's easy to say, in August off the top of my head it was rising between 10 and 11pm, and more east than south east, but that general direction and you won't miss it as its the brightest object there.
It isn't so much the glass the reduces light but the change in the focal ratio, for example my Sky Watcher 200p is 1,000mm and f5 which at prime focus is 20x for my canon 6D, if I used my 5x Barlow that makes the telescope 5,000mm f25 5000/200, or f5 x5. You keep mentioning that the telescope has no baring on magnification and it us all the eye piece, that isn't entirely true, the the fecal length plays a big part, for example a telescope of 500mm on my 6d gives 10x my 1000mm gives 20x, eye pieces change the effective focal length of a given length of telescope, and there by the effective focal ratio which is why as you increase magnification things become fainter.
I have just got my rig running again after a psu failed on the computer, I can't comment on the svbonny but I have the 5x astro relavation barlow and used it too view Jupiter on my 200p sky watcher with a ZWO ASI 120MC cropped to about 600x600 pixels, image certainly larger, but seeing was bad last night so didn't achieve anything, just frame rates were low and had to push gain up, I will try again when we have clearer sky, if it works would be good on Saturn but I think a 3x is probably going to be the max with this camera.
@@smalloptics753 Thanks. I found it before, but there seems to be no "Join" option available. I messaged both of you admins. I dunno, maybe because of my long term loathing of FB I just don't know how to use it? Maybe it's my age? Maybe there is no "join" option?
The only 5x worth a spit is the televue powermate. I remember when GSO came out with 5x barlows in the mid late 2000s, and i tested one and it was absolute rubbish. I cant imagine svbony or astromania getting a better source than gso. Also, 5x is useless for visual in most cases, since it is only practical on longer focal length eyepieces, which have their eye relief pushed out farther with barlows, which in some cases makes the eyepiece unusable. This is why televue first came out with the panoptic interface lens for 2" barlows that later led to the powermate. A 5x powermate is mostly used by planetary imagers, but since it doesn't mess with the eye relief, you can use it on the 25, 32 and 40mm eyepieces it is most suited to, unless using it with an f4 or f5 telescope where you can use 2mm and 2.5mm eyepiece equivalents on the best nights. Generally I don't bother with anythjng more than a 3x
My mom bought me one of these when Amazon recommended it as an add on for the 2x Barlow I told her to get me (Christmas gift). The 2x is much better optically IMO. So what to do with the 5x? I removed the guts and I use it as a spacer between my 2x Barlow and EP to get around 3x. It works great as a spacer!
OMG Jason, at this point and as a beginner I couldn't imagine using a 5x Barlow lens. I have a 2x which for the most part is perfect with my 25mm eye piece. I have to use the 2x with my DSLR to achieve focus, but end up stitching the moon pics as I'm to close to get full effect. Jupiter and Saturn whilst fine are just a tad small using 2x with my DSLR, so ive just got a 3x. But 5x wow 😃
Haha, It's More Like a Useless Barlow, Cheap Quality ones Like Those aren't worth it indeed, and 5x Is Probably too much Magnification, I own a 3x Barlow, which is A Quality Celestron ones. It's Does A fine Job. Nice Review Jason!
Not sure, couple it up with my Sky Watcher 200p and canon 6d might work on some of the smaller galaxies I can manage 5 min subs. I mean prime focus is only 20x mag, so this would only be a 5m f25 100x, I did rig the scope with a 10mm eyepiece projection once to image Venus, that turned out to be 18m a f90 so that would be about 300x. So a 5x Barlow if the optics upto it, has a place.
@@stanleybest8833 i not saying Svybony has Cheap Barlows. I've got a 2x Barlow from Svybony, and it's Fantastic for the price! I just thought 5x would be too much for visual use, but for photography it's Fine I gues!
Great info and I’ve been checking out Saturn and Jupiter for the first time this week. Thanks for helping us new guys out
It's a pleasure my friend
I missed the Barlow and bought 3 Svbony eyepieces. Red band, not gold and 6, 9, and 20 MM like yours. Sweet and affordable.
cheers for this on Jason never used a 5X barlow only went as far as 3X
I have a 2x and 3x barlow. The 2x has a clearer image for pics.
Great info again as usual Jason. Clear skies and keep well and safe.
My calf muscle poped yesterday and I came into this video today.
Thanks!
For the dog biscuits, sorry to hear about your leg brother, sucks getting old ;)
Thank you so much Matthew, very much appreciated my friend😊🙏
Hey Jason take it easy buddy and look after yourself too! Nice product review and shot of moon looked good but last shot is better than nothing.
Looking forward to seeing the planets again and hopefully get a shot of Saturn.
2x Barlow lens is best but this 5x one looks interesting as long.you don't go crazy but we all like to try crazy things 8n astronomy!
Take care and stay safe too plus clear skies buddy!
Hey Bushcraft, It's the joy's of turning 50 obviously I'm not a fit as I used to be🤣... Yes you have to be careful with high powered barlow's, unfortunately it's a common mistake with beginners.. Take care pal.. Clear skies🙂
I use it with the 20mm to get a 4 mm equivalent .
Works great for the money.
looks like that retaining ring might work as a field stop too. i was wondering about those strange high power barlows, makes sense its more for the astrophoto application.
i once put my 5.5mm ep into a 2x barlow, into the 1000mm fl, 120mm obj refractor. aimed at the moon. well, i wont do it again! 🤪😄
this was hilarious! awesome video. But im sure its a great barlow if you got results like that in a phone pushed beyond limits👍
I take it you have a standard 120mm f8.3 achromat? The synta 120ED scopes are 900mm f7.5
The.scope itself.was more the reason,.other than the fact that 5.5 in a 2x in that scope takes it almost 2x more than the 240x theoretical maximum.
You need a really slow achromat to be able to push much past the.max. or an apochromatic refractor.
I am looking for a meade 5.5mm UWA, is that the eyepiece you are talking about?
I just used my first telescope for the first time last night and it was an awesome experience! Celestron StarSense Explorer 8” Dobsonian. I couldn’t help but be skeptical of the StarSense app but it actually worked flawlessly. Thanks for all of these great videos and hope you get better soon! Also thanks for recommending a moon filter. The telescope package came with a 25mm eyepiece and I also ordered a 9mm eyepiece with it. Definitely open to buying more eyepieces but honestly my next big purchase is going to be a night vision device setup which not only works for astronomy but also other hobbies of mine.
Hello Coyote, great to hear my friend welcome to a lifetime addiction... Enjoy your new telescope 🙂
Guys, HERE is Our TRUE Savior
YaH The Heavenly FATHER HIMSELF was Who they Crucified for our sins, NOT jesus, and “HERE IS THE PROOF”
From the Ancient Semitic Scroll:
"Yad He Vav He" is what Moses wrote, when Moses asked YaH His Name (Exodus 3)
Ancient Semitic Direct Translation
Yad - "Behold The Hand"
He - "Behold the Breath"
Vav - "Behold The NAIL"
on my 8 inch I pretty much only use my 25 mm pared with 2x Barlow and find it's perfect for mostly everything Mars tho lately I'll use a 25mm and 2 2x Barlow
@@crnocommentary Huh I wasn’t even aware that you could stack barlows if that’s what you’re talking about but it’s an interesting idea. I don’t even have a barlow at the moment but did just order a 4mm eyepiece which would bring my stash to a 4mm, 9mm, and 25mm. I think that should cover all my bases at least for now. Suppose I could have went with a 2x barlow when I just had the 25mm and 9mm eyepieces because that would essentially also give me a 12.5mm and 4.5mm but I’d rather pay the lower price for the dedicated 4mm eyepiece and get that tiny bit more magnification while also paying less and honestly I doubt I’d use the barlow with the 25mm much anyway. Who knows what the future holds though. Your setup sounds great. Honestly my biggest issue at the moment is managing all the eyepieces, caps, etc while observing the sky. Maybe need to bring some kind of tray out or something just to have everything organized. To be clear I think it’s great to use a barlow with a 25mm but don’t personally see myself doing that in the moment VS just switching to the dedicated 9mm. I mean I could order a barlow right now but as I said earlier I’m already having some conflict with organization at the moment lol
@@DontDoDaylight oh yeah you could deff stack Barlows but just be aware the more glass you add the more the image gets degraded
I compared a lot of cheap 5x lenses. But none could beat the quality of two inexpensive barlow lenses 2x (SVBony) and 3x (DATYSON). Even though this combination gives a 6x increase in focal length, the picture quality is significantly better than any cheap 5x 🙃🔍👌 But in general, yes, I agree. Such lenses are mainly needed only when shooting with a camera. For the visual they are poorly suited.
Take care, Jay. And have a clear skies 😀🤝😃
Thanks FYI
SVNONY, EYSDON, DATYSON and SKYOPTICS use the same equipment, all are from the same factory, only the brand name changes. This happens a lot in CHINA, a factory makes the product and several companies buy it, name it and charge different prices. I have an electronics store and I import products from CHINA, I already know that well.
Wait, you can use multiple barlow at once??
@@glebsiz2122 of course you can if they fit into each other. Some lenses have different fit. For example, a 2x lens has a very deep fit. Therefore, a 3x lens can be installed into 2x, but 2x in 3x will not work 🙃👌
Great video. However, I caught something in your video at 10:22. You mentioned that small-sensor cameras need the extra boost. It's actually the opposite! The larger the sensor, the wider and less "zoomed in" the view is. So a 5× Barlow lens has better use in small-aperture, long focal length telescopes in a full-frame DSLR than a crop-sensor camera such as what you showed. A telescope without the eyepiece just acts as a larger lens for a DSLR or mirrorless camera. That is why you see lenses for them marked in millimeters rather than magnification, as it is the focal length of the lens. Actually judging the magnification is trickier though, as it depends on the lens and the sensor. I'm a Canon user, so I'll use their standards. For an APS-C crop sensor camera such as the 7D Mark II, on an EF lens (their full-frame lens) the focal length will be equivalent to 1.6× the posted focal length, but using an EF-S lens on the 7DMII will give you the posted focal length. A full-frame camera will give the equivalent of around a 24mm eyepiece. As a general rule for any camera, measure the short side of your sensor, divide the focal length of the telescope by that, and that'll tell roughly around the magnification you're going to get.
Has anyone ever told you, you resemble a young Tom Wilkinson ? Lol. Great videos! Just picked up my 1st telescope (Celestron StarSense Explorer 130mm)
Every man overcompensates in different ways xD You just gave me an idea, and I was worried about those screws damaging the lenses. Apart from sanding a bit, cut a tiny piece of leather (I have some scraps around) and stick it to the tip of the screw with CI glue. And yes, I bought the 5 x cuz it was cheaper than the 2x (Amazon deals). What do you think about the Astromasater accesory kit? Right now it is 66 bucks and comes with: 15mm Kellner Eyepiece - 1.25” / 6mm Plossl Eyepiece - 1.25” / 2X Barlow Lens with T-threads - 1.25” / #80A Blue Filter - 1.25” / #25 Red Filter - 1.25” / Moon Filter - 1.25” It seems a pretty good deal which should cover my needs (beginner) for a few years I guess!
I have an Orion 6 inch dob with the full SVBONY redline set and a celestron 2x barlow. What is the difference in image quality in using a 6 mm without a barlow vs a 15 mm with a 2x barlow. I am still not sure what the point of the barlow is if you can get similar magnification with higher powered eyepieces. I have a hard time seeing the difference through my eyepiece except that the barlow has a more narrow field of view.
Comfort via eye relief with the longer lens. You might want to compare what you see near the edges as you work your way out from the center.
Hi. Thank you for a great review. I have some questions about the svbony cameras. I’m going to buy my first astronomy camera and I have decided to buy a svbony. Is it stupid to go for the cheaper one? Have you tested the 305? When I look at reviews on UA-cam on the svbony cameras it’s difficult to say if they are good ore bad, everyone say different things about them. I hope you can help me out. Best regards Fredrik.
A 5X apochromatic Barlow does a great job.
Hello, is there a Barlow lens for the svbony sv 28 25-75x70 telescope
My God Jason! I've got an sv bony and would be made up with your pictures!
Hi Jason. Great video again. I have the same 130 reflector. Only looked at the moon. Is it good enough to see Saturn?
It definitly is
Yes of course brother... you know what, I have a 114mm newtonian reflector telescope and also it is very useful for planetary observations.. I live in Colombo, Sri Lanka, which is the most heavily light polluted and air polluted city in Sri Lanka.. that's definitely fine for planetary observations.. so use your 130mm telescope to observe the planets.. your beautiful 130 will good at all.. galaxies, nebulas ( messier objects are really amazing targets ).. all the best my dear friend..❤ ( and sorry if my English was not good..😄)
Awesome!!! I need to get out there. It came with a 10mm and 25mm eyepiece and 2x Barlow. Should I get any "stronger" eyepieces? Thanks for your help.
Hello Leon, Like others have said YES! it's great for all the inner planets.. If you have a look on my main page in the playlist section under observations you will see what you can see with the telescope.. Enjoy😀
Jason, is it better to use a low power eye piece with a barlow, over a high power eye piece in its own? , with a 70mm Aperture.
I am a massive fan of the SV137 2x and 3x. I've also used the 2x ED Barlow; also fantastic. But this 5x is rubbish. It's clear enough, but it's not 5x (from what I can see) - more like 2.5x. I have it lying around, so maybe I should conduct more tests. I haven't watched your video yet because I wanted to post my findings before watching.
Please continue with your reviews.
Excuse. Question. Barlow SV bony x 5 sur télescope 🔭 SV bony Focal 70 mm avec oculaire 23 mm. Sa multiplie combien ? Pour lune 🌒 ou Vénus. Ou Saturne avec SV bony 501 p. Focal 70. J'avais acheté Aliexpress. Télescope 🔭 SV bony 501p Focal 60 . Et SV bony Focal 70 aussi. Bon matériel SV bony. Et accessoires.
Hi Jason
Thanks for the video.
My set up:
254mm reflector 1000mm focal length .
Would the 5 * Barlow be better viewing for Mars ?
Would the now FL 4 be blown out too much ?
Camera is zwo 662 Mc or just for eye piece
Only just got into this 4 months ago.
Talk about addictive 😂
Cheers.
Thanks Jason very good review and very good info. I like that you include example photos. For a future video idea i would like to see how to control Humidity or condensation on the telescope, where i live the humidity is very high and when the nights begin to get cooler this really cuts down viewing time and causes other problems is there a cheap and effective way to help this problem? P.S. take care of the leg and get well soon!!!
Hello Jason, Thank you my friend. Humidity is something I've not had problems with in the past so for a quick cheap fix I'm honestly not quite sure... You can get/make little air cooling fans for larger Newtonian's I don't know if that would help , and of course make sure you are setting up your telescope outside well in of advance of when you intend to use it to climatise the air inside the tube, a good hour or more depending on the size of the telescope. Hope you manage to sort it pal.
@@smalloptics753 Thanks Jason, yes good advice i will set up my telescope ahead of time for a couple of hours before, i will also try to make a dew shield from plastic coated cardboard, i know it will cut the field of view down a little but everything has trade offs.
question what is a good brand of eyepiece to buy ?
Hey guys I could really use some help with something. I want to get a celestron Telescope but I also don't want to have to buy a new barlow lens as I have 2 perfectly good ones but the are from saxon.
Can i use this barlow with 15mm on a svbony sv501p?
My one funny thing that happened is that I didnt look around the website where I bought my telescope enough and I bought a ``Bresser Spica 130/1000 EQ3 reflector (telescope I am using right now) altough I could of bought a 150/1000 for only 30 Euros more😅😅. And btw love ya and your content.
I have the same barlow but the maximum useful one for my telescope is a 2x. I forgot why i don't use the 5x anymore...
I've had this exact one for almost a year, and I'd say you gave it a fair review Jason, it won't work every night as 'the seeing' makes such a difference to whether it can be used, but when it's excellent seeing, it can be very good.
Old age catches up with all of us! 😜🤣
Hey. I have a reflector telescope (130mm) for 5 years now, but I am really concerned that I have not been taking care of it. First of all I don't use it that much (for months) and I am worried about dust. Is there any way to store it without in decreasing the quality or something? Also yesterday I was observing the moon, Saturn and Jupiter and I noticed that on my 10mm lens there were small particles that were visible when observing the moon. I couldn't notice those while observing the planets, what should I do? Also I think the little screws on the eyepieces are broken because one doesn't stay tight while the other one does. Overall I am very paranoid about my telescope, my eyepieces and even the mirror. Is there any advice?
I have a 130x900 reflector and even with the dust cover on particles will always find a way inside the tube. I recently removed my primary mirror and cleaned it (Small Optics has an excellent video on how to do that). I had not used mine in a while (well over a year) and couldn't believe how much dust was on it. I now remove the telescope and store it vertically inside a closet with the primary mirror at top and secondary mirror closest to ground with a soft cotton cloth loosely draped over the secondary. Maybe a small amount of cling wrap over both ends. You never know when you will use it again. Sometimes it is months apart depending on weather. Tomorrow I am picking up a new refractor 102x660. Was suppose to be today because Saturn is at opposition today but I'm also taking my reflector in so the guys at the telescope shop can give it a once over and collimate it for me. My advice would be to take your reflector to a shop if you have one nearby. It's not just a job for these guys it's also their hobby and they are always more that willing to help. I did buy a laser collimator but I have zero faith in it. They are hard to calibrate...
@@gecko-sb1kp Thank you this was actually very helpful, never thought of taking it to the shop.
It's always best to try and avoid dust, more critical in astro photography than visual, a bit of dust on the primary will have little effect and certainly won't be visible, a bit like a bit of dust in a camera lens. Eye pieces is a different ball game as this is the point of focus, in imaging dust on your sensor will show dust on your primary won't, visual you may see the dust in the eye piece but will not make it unusable.
I worry more about dust on my cameras/sensors than on the optics.
Ugh. Synta 130mm x900mm reflectors have a spherical mirror, and that is a little.fast/big to be diffraction limited.with a sphere. It works at 114mm which is f8. The larger.the aperture gets, the longer the focal ratio needs to be to get diffraction limited with a sphere.
But probably still better than a bird jones like an astromaster 127.
One of the first things i read about 20 years ago was to get the orion spaceprobe 130st, which is f5 parabolic, rather than the regular spaceprobe 130 f6.9 because of the spherical mirror, and longer tube putting more.stress on the mount.
Those were synta scopes, and the skywatcher are the house brand of synta, and still using the same basic designs and optical prescription.
I think a 130 would need to be around f9 to be ok with a spherical mirror.
I want to go back out outside but after an unseen animal approached me gosh idk and I live in the suburbs of my city
Seems very cheap at 20 quid but I will stick with the 2x atleast until I gain some experience.hope your leg gets better fast matey✌️
Thank you Stephen🙂
SVBONY is on the phone with Lloyd's, pricing insurance on Jason's calf muscles.
Jason please help I went in the garden for the first time with my 130mm explorer to the east south east I saw a very bright object and I think it was Jupiter.i couldn’t do it for long as my back bad but was it Jupiter.i used my svbony 20mm eyepiece.is it luck or am I dreaming?
If you can give date time it's easy to say, in August off the top of my head it was rising between 10 and 11pm, and more east than south east, but that general direction and you won't miss it as its the brightest object there.
It isn't so much the glass the reduces light but the change in the focal ratio, for example my Sky Watcher 200p is 1,000mm and f5 which at prime focus is 20x for my canon 6D, if I used my 5x Barlow that makes the telescope 5,000mm f25 5000/200, or f5 x5.
You keep mentioning that the telescope has no baring on magnification and it us all the eye piece, that isn't entirely true, the the fecal length plays a big part, for example a telescope of 500mm on my 6d gives 10x my 1000mm gives 20x, eye pieces change the effective focal length of a given length of telescope, and there by the effective focal ratio which is why as you increase magnification things become fainter.
она работает как х3 у меня была такая , давала увеличение такоеже как свбони х3
The highest i own and use is a 3x for the planets.
Have you tried it with camera? Also even for camera x5 seems to be somewhat high.
Is it doublet or singlet barlo?
I have just got my rig running again after a psu failed on the computer, I can't comment on the svbonny but I have the 5x astro relavation barlow and used it too view Jupiter on my 200p sky watcher with a ZWO ASI 120MC cropped to about 600x600 pixels, image certainly larger, but seeing was bad last night so didn't achieve anything, just frame rates were low and had to push gain up, I will try again when we have clearer sky, if it works would be good on Saturn but I think a 3x is probably going to be the max with this camera.
Hey Jason. Is your facebook group still joinable?
Yes my friend , links in the description 😀
@@smalloptics753 Thanks. I found it before, but there seems to be no "Join" option available. I messaged both of you admins.
I dunno, maybe because of my long term loathing of FB I just don't know how to use it? Maybe it's my age? Maybe there is no "join" option?
EDIT - I managed it. I was able to join via a search result, but not from the group page itself.
The only 5x worth a spit is the televue powermate. I remember when GSO came out with 5x barlows in the mid late 2000s, and i tested one and it was absolute rubbish. I cant imagine svbony or astromania getting a better source than gso.
Also, 5x is useless for visual in most cases, since it is only practical on longer focal length eyepieces, which have their eye relief pushed out farther with barlows, which in some cases makes the eyepiece unusable. This is why televue first came out with the panoptic interface lens for 2" barlows that later led to the powermate.
A 5x powermate is mostly used by planetary imagers, but since it doesn't mess with the eye relief, you can use it on the 25, 32 and 40mm eyepieces it is most suited to, unless using it with an f4 or f5 telescope where you can use 2mm and 2.5mm eyepiece equivalents on the best nights.
Generally I don't bother with anythjng more than a 3x
By the way the time was 12.30am!
Probably then.
GWS chap.
My mom bought me one of these when Amazon recommended it as an add on for the 2x Barlow I told her to get me (Christmas gift). The 2x is much better optically IMO. So what to do with the 5x? I removed the guts and I use it as a spacer between my 2x Barlow and EP to get around 3x. It works great as a spacer!
Nasty heal quick bud
"Don't do it, i know you will, but don't". Yep, just did it.
5 X🔎
👍❤🙏🇭🇷
OMG Jason, at this point and as a beginner I couldn't imagine using a 5x Barlow lens. I have a 2x which for the most part is perfect with my 25mm eye piece. I have to use the 2x with my DSLR to achieve focus, but end up stitching the moon pics as I'm to close to get full effect. Jupiter and Saturn whilst fine are just a tad small using 2x with my DSLR, so ive just got a 3x. But 5x wow 😃
@RandomCastings Ive thought of getting a specialised camera matey, however, if I don't use a Barlow with my camera I cannot get focus at all.
Got one, it's useable but not worth it
Haha, It's More Like a Useless Barlow, Cheap Quality ones Like Those aren't worth it indeed, and 5x Is Probably too much Magnification, I own a 3x Barlow, which is A Quality Celestron ones. It's Does A fine Job. Nice Review Jason!
🤣😂It's not as bad as you may first think.. But I agree 5X is a little excessive. Thanks Avanteesh, take care buddy.
Not sure, couple it up with my Sky Watcher 200p and canon 6d might work on some of the smaller galaxies I can manage 5 min subs.
I mean prime focus is only 20x mag, so this would only be a 5m f25 100x, I did rig the scope with a 10mm eyepiece projection once to image Venus, that turned out to be 18m a f90 so that would be about 300x. So a 5x Barlow if the optics upto it, has a place.
Commenter, you're behind the times. Svbony is stretching the norm and doing it with quality.
@@stanleybest8833 i not saying Svybony has Cheap Barlows. I've got a 2x Barlow from Svybony, and it's Fantastic for the price! I just thought 5x would be too much for visual use, but for photography it's Fine I gues!