How to Choose Eyepieces - Orion Telescopes and Binoculars
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- Опубліковано 3 сер 2024
- In this video we explain the features and specifications you should consider when choosing a new eyepiece for your telescope. There are a bunch of eyepiece options to choose from so understanding what features are important to your own needs will make the purchasing decision a whole lot easier.
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New to high end scopes and eye pieces always got me. This was super helpful and makes picking out an eye piece so much easier. Thank you!
While reading articles and checking on forums is helpful, there is something that makes a video easier to understand, if done right. I have yet to come across a video on Orion's page that is anything but informative and easy to follow. In the near future, I will be upgrading from my first pair of binos to a telescope; I am leaning towards the XT8 Plus. Thank you to Orion for producing these wonderful videos, and clear skies to all!
I just put 5 barlows on top of each other plus a 40mm eye piece and found out that there's oil leak under the Curiosity rover on Mars!
Bob Ross but 5 barlows (I’m assuming 2x) would magnify anything by another 10x so still very high magnification
TELESCOPE FOCAL LENGTH / OCULAR FOCAL LENGTH = MAGNIFICATION
I think nasa would know if the rover had an oil leak and its solar powered if it needed fossil fuel to run what happens when it runs out
Harry Brill it’s a damn JOKE.
@@leobigourdan8601 I thought it'd be 2^5 = 32x, no?
Ken, this was excellent - you come across exactly as the new folks want. Knowledgeable but friendly. Orion chose wisely when they selected you to do the intro videos.
Todd (just an XT8 but enjoying this new hobby)
Thanks for making these videos. As a beginning astronomer, who is learning, it's nice that you seem to not be reading cue cards, verbatim. Although organization and clear content is paramount to an easy-to-watch tutorial, I can tell be your tone that you really live this stuff. Thank you, again.
Just watched. More helpful than any video I have viewed from Celestron and others. And I own an 8" Celestron. Truly excellent. More folks would be turned on to the universe if the technology for viewing the sky was made this clear, succinct and relatable.
Great video, and clear, crisp explanations. Thank you!
Your videos continue to be a good source of information, thank you this helped out a lot.
Thank you Ken, an excellent presentation, keep them coming.
Regards Jim Mc.
Hi Ken, thanks for the excellent explanation. Concise and to the point - Really helped me make a decision. 👍
Ken is a true professional. Thanks for another informative video.
Another great vid, Ken. Just ordered my first scope on the strength of your beginner vid.
Quick and practical information for a eyepiece selection for a astronomy enthusiast like me.
Thanks a lot for the video.
Thank you very much. By far this is the most informative presentation on eyepiece selection. Very good, thanks.
Very informative...I just purchased an 8 inch classic dob from you guys and I love it so far...this video certainly is beneficial in helping me select my next eye piece...thanks
Your videos are incredibly helpful and very easy to understand. Thankyou so much.
I'm loving these videos. They're great for a beginner. Thank you.
Excellent presentation! Very comprehensive!
Great video. Very informative for a newbie like me. Thanks!
Fantastic explanations for this newbie. THANK YOU!
great video, summarizes all i needed to know about eyepieces
Excellent presentation .
Well done !
Awesome video. I got an Orion XT10 and I'm really digging how Orion is active with the community and gets all kind of help out there. I plead guilty to buying eyepieces from different brands as well (Celetron and Antares), but I really like Orion as a brand, and definitly digging your approach. Will order more from you for sure!
Thank you so much! Very useful and well explained!
excellent clear precise info for beginners thanks
Very useful information, well presented.
Thank you.
Hi Geoffrey,
My first suggestion would be to get a 2x Shorty Barlow lens. It will double the power of the 25mm, and work with any eyepiece you get in the future. It's a great way to expand the power of your telescope.
Thanks
-Ken
Orion Telescopes
Ok, thanks. I'm getting ready to buy my first telescope, and am very excited! I've been checking out a lot of youtube videos for some great information and help with the purchase. I am thinking about going with the Orion Starblast 6. Thanks!
thank you, this information is very helpful!
Excellent info, thanks a bunch!
Very good presentation. Thanks.
Very good video, very helpful. Thanks Ken.
Thank you for this video very helpful and informative to a beginner
Excellent, excellent, excellent. Every scope user should watch this video. 👍
Excellent video for someone like me who is trying to get to grips with the different categories on Lens
Very helpful tip. Thanks!
THANK YOU for this information it gets confusing but with the good ole internet, videos like these I feel I'm getting somewhere.
Very well explained.
Thanks a lot! I'm quite newbie in that telescope thing xD. I started searching for more things yesterday. Thanks! :D
Really useful information for a beginner like me thankyou
great video....but I just want to make a note on eye relief for eyeglass wearers....yes, it's true, with very short eye relief, eyeglass wearers can never get their eyeball to the eye relief, however this is slightly disingenuous, or not entirely accurate anyway. If an eyeglass wearer removes their glasses, and slightly defocuses the eyepiece, most people can offset their eye focus issue so that the image is sharp. It just wouldn't be sharp for a non eyeglass wearer at that point. This is similar to the diopter on a camera viewfinder. With my glasses on, I set my diopter to a sharp image. If I remove my glasses, the viewfinder is out of focus, but I can refocus my diopter for my vision without my glasses, and the image is again sharp. If I now put my glasses back on, and don't readjust the diopter, the image is again out of focus, so it needs to be refocused for my glasses. The same holds true with telescope eyepieces, for MOST eyeglass wearers. This does of course depend somewhat on the reason for the eyeglasses. Just wanted to make that clarification.
True, but I wouldn't call it disingenuous. Probably just a minor oversight; easily made by a person who doesn't wear glasses. I wear glasses and I find it a pain in the ass to take them off for telescope viewing. This leads me to favor long eye relief eyepieces so that I don't have to.
James McPherson I prefer to take my glasses off to view.
Very helpful thanks
Excellent presentation.
Excellent... thank you
best video out there. thank you.
thank you. of course the video helped me
I liked the information in this and your other video. In terms of getting what you pay for and how much glass you’re putting between you and the objects you wish to see where is it best to spend money. I’ve seen telescopes that on paper seem identical but are vastly different in price.
Hi arsa525,
A moon filter will cut down some of the light, so if your scope is sending a lot of light to your eye, it can definitely make things more comfortable. Think of it like going outside on a sunny day without sunglasses. The filter helps knock down the glare.
Thanks
-Ken
Orion Telescopes
Hi Egov,
If you have the Classic with only one eyepiece, I'd recommend something around a 10mm, and maybe a barlow to add with it. This way you'll have a wide range of power. The 10mm Sirius Plossl is a good eyepiece, similar to the 25mm that came with the telescope. Or the Expanse 9mm would be a wider field alternative.
Thanks
-Ken
Orion Telescopes
Very good video, thanks
Thanks ken,i'm aware of that Focal lengths is expressed by mm,i actually ment the barrel size,but did not mention it,i wrote it as it is mentioned in the instruction manual of my telescope without mentionoing the mm diameter,but you've alredy answered my question,thank you.
Excellent!
Thank you!
Thanks very much Ken
thank you
Thanks Mate very informative & Exceptionally Explained👍 You just make me Feel Smarter & that’s “No” easy Feat! 👍🍺😂
Orion is the best. They are just so useful and awesome
simple..clear... direct ... you should be a teacher Sir.... thank you
Great video. I’d really like to visit the Orion store
I like this guy. I am just starting in astronomy and want to start out with say Oberwers 10.5 x70.
Thanks saved me a fortune
Hi Galileo,
The E-series eyepieces are an entry level series, and don't have the same level of coatings as the Explorer II -- so the brightness will be better on the Explorers. Also, if you're using a higher power eyepiece of any type, it will appear dimmer and perhaps not as sharp if the atmospheric conditions aren't perfect. If you like the Explorers, I would suggest a barlow lens to use with them, or a Sirius or Highlight Plossl.
Thanks!
-Ken
Orion Telescopes
Hi Grannyhauenstein,
The Sirius plossl is a regular Plossl design - "Sirius" simply refers to the model name. We have the Highlight Plossls as well with a few added features, but they are also a standard 4-element Plossl design.
Thanks
-Ken
Orion Telescopes
Hi Ken I recently got the 90mm Mak Cass and was going to upgrade the 10mm with a wide field as I thought it would be easier to view targets with but was told it would not work well with this scope, my other other option is a plossl in the same size thats a bit cheaper? Any advice would be appreciated. Thanks Richard
Star Trek weapons armory behind the guy on the right side? Set focal length to kill.
im a doctor, not a astronomer!
Set focal length to Uranus !!!
tnx
Hi Ken'
I'm about to order an eyepiece set kit online, of which is 6 pieces different focal lengths of course, my original eyepieces of my telescope are of 0.79 and 0.16 inch, the eyepieces to be ordered are of 1.25 inch each, would it fix normally in my telescope or not?
Thanks in advance
thanks for the video ...... i wanted to know which is the bestest eyepiece for orion xt6...... iam from India
thanks
Hi Hisham,
I'm trying to figure out exactly what you are describing, and I think I might understand. When you say your eyepieces are 0.79 and 0.16 inch, I believe you are talking about the focal length. Usually that's expressed in mm, so they would be a 4mm and a 20mm. The 1.25" refers to the diameter of the barrel and not the focal length, so just measure the barrel of your eyepieces (where they fit into the focuser). If it's 1.25" then that kit will work.
Thanks!
-Ken
Orion Telescopes
Hi Dosagu,
It just has to do with the length of the tube. A long Barlow can be 5" or 6" long, and a shorty style can be around 3". They're nice to have in a refractor or cassegrain diagonal, so the eyepiece doesn't stick very high out of the diagonal.
Thanks
-Ken
Orion Telescopes
Hi Duvan Jaft,
I had to use Google translation so I apologize if I don't answer your question exactly. If you are looking for 3 different magnifications, I would suggest a 20mm-25mm low power eyepiece, a 6mm high power eyepiece, and a 2x Barlow lens. This will give you 4 different magnifications, and will let you see all the objects you mention. Try our Expanse 20mm and 6mm, and the 2x Shorty Barlow.
Thanks!
Hi! I was watching Moon for an hour and my eye felt sore after that. Have I understood correctly that a moon filter helps with this problem?
Thanks for the video, I'm buying the orion apex 127. I will be doing photography with it so eyepiece wouldn't matter, but I do want to look at objects like Jupiter and mars etc, and I'm a glasses wearer. My budget is tight which orion eyepiece would you recommend to compliment the 25mm eyepiece that comes with the scope as I can probably only afford one for now?
Thanks for information I understand some basic knowledge well. But please make a video about finder scope I don't find it very useful. Need to know more about it. Thanks
I am interested in buying a Orion StarBlast 4.5. Could you recommend a couple additional eye pieces that I should purchase. This would be my first telescope.
finally I got it!!!!!!!
Hi Ptrssniper1,
The 5mm and 6mm should work fine with the SpaceProbe130EQ. But the 3.3mm will probably push the power a little too far and end up showing you less detail instead of more.
Thanks!
-Ken
Orion Telescopes
Hi Ric300078,
I don't think there would be anything wrong with a 10mm with a wider field of view. Yes, the Mak has a bit of a narrower light cone than a faster scope, but there's still plenty of room for going wider without loosing brightness on the edges. I think you can go up to at least a 66-68 degree field eyepiece without any problems.
Maybe look at the Expanse or Stratus line of eyepieces for a nice upgrade.
Thanks!
-Ken
Orion Telescopes
Great video... I have a Meade LX 200 10" and I would like to be able to look at land objects like buildings, etc... What would be a good eyepiece to use ?
Hi Julio,
I'd say a fairly long focal length eyepieces would be best. Since your 10" is already a huge focal length, it will be easy to over-magnify during the day and just end up seeing heatwaves and other distortion. So perhaps a Plossl in the 25-32mm range, or if you have your scope outfitted with a 2" diagonal, you can use a Q70 32mm or 38mm for even lower power wider field of view.
Thanks
-Ken
Orion Telescopes
A very nice explanation about eyepieces only the image quality was very bad, hopefully there will be an update video with better picture quality. - 2018, 4K displays
so you should use high power eyepieces in long focus telescopes? and lower magnification for shorter focal length?
Sir...may i ask you about fisheye for handphones? Can i use it as an eyepiece too.
I,m just starting to learn about telescopes this vedio hase been very helpful to me! Ken. orlon telecopes. clear skys& God,s skys. ty. Diane.B I,m learning alot.:) I am buying more down the line.
Ken I've possessed many EPs in my time naglers baaders etc but the orion edge on planetary leave nothing to be desired. they are outstanding in anything be it my 127 orion mak or 250 SCT
What is the right eyepiece s for Saturn ring
This got to the one of the top 3 Videos when it comes to this Lifestyle for new Fellas like me. Salute for the Game for free. Stay Blessed.
appreciate your help!! new to astronomy just saw Jupiter and her moons on the 21 of march.
Me too! They are beautiful! Especially if you can make out the cloud belts on the planet
I have an Orion 4.5 inch equatorial reflector telescope with a 10 and 25 mm plossl eyepieces, which I use with my Barlow x2 and moon filter. What other eye pieces can I get to further maximize my viewing with this scope? I have seen people view planets and nebulas with a lot more detail with the scope than I am able to right now.
I bought one of the vixen 6mm, and almost have to have my eyeball touch it to see. but when I do it has a nice view.
Hey Ken, I have an Orion SkyQuest XT8, and I'm looking for an eyepiece that allows me to see better and father into deep space, I'm really interested in seeing nebulas and galaxies, I will do any price range, which eyepiece would you recommend?
Hi Tevin,
I would look at one of the Q70 2" eyepieces. They have a very wide field of view, and with a low power you also get a very bright image. The 38mm Q70 (#8829) would give you the brightest image of all of them, and would be excellent for many of those nebulae and galaxies that an 8" can see from a relatively dark sky site away from light pollution.
Thanks
-Ken
Orion Telescopes
Hey Ken thanks again for always answering.. I have the 8 inch dobsonian. Two deep space lenses 28mm and q70 32mm.. I wAntbto really get into clusters and nebulae.. Do I have enough scope for that and just am still going through learning curve.. (Clusters are becoming beautifully easy) but do I need to step up the scope for galaxies and nebulae..?? If no any more advice? And if so where would you go next if u were me?? ORION ROCKS!!!
Hi Rocco,
Yes, you've got quite a good setup for clusters and nebulae. Some smaller globular clusters would do well with a medium power eyepiece, somewhere in the 13-17mm range if you don't already have something there. But for large faint objects, the 2" eyepieces you have are great.
To get even more light and field of view, you could go with the 38mm Q70, but if you want even more faint object performance past that, then you'll have to start looking at an even bigger scope. But the 8" with a 38mm Q-70 will give you a fantastic image of many of the Messier objects.
Thanks
-Ken
Orion Telescopes
+oriontelescopes so I found its more of a local of experience than lack of scope.. I was somewhat on budget considering this was my first "real scope" last night I found Andromeda Galaxy.. Wow spectacular !! Now for some . They would say okay it's a grayish flattish round cloud.. But knowing what it is and what I found .. Was an awesome experience.. I like a go to system but I also like to "go fishing" but I just have to better educate what I'm looking at. I find the smart phone shows stars that under my light condition I can't even see so your basic constellations kinda get blended in with an index of every star. Even when adjusting the star visibility it's never 75 percent easier .. But that's what I love .. The challenge is fantastic .. I thank Orion Telescopes for helping me out so much ... How about we petition for something on Mars to have Kens name on it !!
Interestingly,
Only the bright galactic center of the Andromeda is what most people can see within the glow of city lights.
The apparent diameter of the entire galaxy is about 3 degrees, or 6 suns/moons.
This video was very helpful, for once I understood some math. Very well speaking for the viewer.
I have a question:
I have a 60*700mm refractor and a Bushmaster Mars 900 Reflector (Astronomical Telescope) .
having my 10mm plossl divided by the focal length of the telescope, (refractor) that would give me 70* magnification right?
and If I had a 6.5mm plossl plus the 700mm focal length of my telescope, that would be 107* magnification?
Around what magnification is best for a mars 900 reflector (114mm aperture 900mm focal length) and a 60*700mm refractor for viewing details on planets such as Jupiter and close up observations of the moon (crater viewing?)
Hi Galloping Gertie,
Yes, you are correct with the formulas you quoted. For planetary details, as well as small details on the lunar surface, 100x is usually a good starting point for the best view. The 60mm will top out around 120x, and the 4.5 should hold up to about 230x, using the rather generalized formula of the upper magnification limit being about 2x per mm aperture
Thanks
-Ken
Orion Telescopes
Thanks, your explanation was very helpful.
I have one more question.
I have a 2* Barlow with my 10mm eyepiece on my 700mm refractor. (the Barlow came with the refractor) with What magnification does that come to? I ask because when I view through this scope, I am not able to see details at all. Jupiter appears as just a small (reasonably sized) ball.
Thank you.
That would be 70 power times 2, so a total of 140x. That should give you the best image of Jupiter, so if it just looks like a small dot, I suspect you're looking at a star nearby. Make sure Jupiter is perfectly centered with a lower power view, then drop the barlow in.
Thanks
-Ken
Orion Telescopes
Through the Telescope! the max magnification you can ideally use for planetary observations is around 35x per inch of apperture. so for your refractor that would be around 84x. and you are using it at 140x , so i dont think you would be able to view great details 🤔 . P.S- i myself have 70 mm and using it at 90x doesnt produce that good views
Whats the difference in a short barlow and a large barlow?
On my Schmidt-Cassegrain Telescopes,Parabolic Newtonian Reflectors,Maksutovs& Achromatic Refractors with Orion Colour Fringe Filter to remove most Secondary Spectrum,I Love the 66 Degree Field of View GOLD Seal SkyWatcher 5 Element Multi-Coated Eyepiece.I also have the Meade QX 70 Degree Wide Fields but in their last 4 Degrees Apparent Field of View they are NO match for my Superb 66 Degree Apperant Field of View Multi-Coated Wide Angle Superb Synta of CHINA SkyWatcher Eyepieces in Corrections!!
I expecting a orion xxg12 goto.....
I'm looking to see in infrared... how do you go about it please?
Hi Joe, unfortunately the far infrared wavelengths that are useful for astronomy are absorbed by water vapor in the atmosphere, which is why most infrared telescopes are at very high altitudes, or in space. Near infrared is more visible but does not make a major difference in the appearance of most objects.
hace poco consegui un telescopio apocromatico orion eon 80mm de diametro por 500 mm de distancia focal, en buenas condiciones, pero no venia con ningun ocular , si me pudiera recomendar 3 oculares de diferente aumento para este telescopio, uno para planetaria, otro para galaxias y otro para estrellas dobles cuales seria teniendo en cuenta que este telescopio es muy corto. muchas gracias por la respuesta.
I have never used a telescope and I just purchased a used Orion short tube 4.5 equatorial reflector telescope it has a diameter 114MM and a FL 1000 MM f/8.8 I don’t know what all these numbers are for but I will learn eventually my question is is that this telescope did not come with any lenses and I can’t seem to find ones that will just fit this telescope are they all interchangeable.?
What is the difference between a sirius plossl and a regula plossl?
what can cause a faceting around the edge of the eyepiece lens when you look into it, it looks like those cheap diamond chip rings that used a diamond chip with extra metal faceting around the stone to make it look bigger. but when you look at it before placing eye to it and you see a starry ring with a hole in the center, and you have to focus on the small hole if you want to see anything. is this caused by out of collimation of the refractor?.