The best way to observe using the RASA is clearly to use a live Atik Infinity video camera on the front and stack the image and "observe" not through an eyepiece but on a laptop using its dedicated capture software.
How HyperStar works; HyperStar is a sophisticated coma corrector for a f2 reflector scope. The lower f stop comes from removing the SCT's second f5 magnification corrector mirror. f2 mirrors toss light around the outside at an angle to the camera sensor and filter the HyperStar straitens the light and corrects the distortion. Newtonian scopes normally stop at f4 because it takes less to correct however some are cut at f3, you can cut a deep f2 mirror for a Newtonian however finding a way to correct it may not be easy. The Newtonian's advantage over a SCT converted into a reflector is it can be used for direct viewing and you can use a filter wheel. Hyperstar turns one scope into two however it costs about what a second more versitile Newt scope costs and you won't have to fiddle as much.
Good video. But as far as covering the front of the scope without removing equipment I would think a large dew shield with a cover over the end would work fine. Yes you may have to fashion your own cover but its do able.
I have a C11 Edge with Hyperstar, yet to get started on it... This video explained nearly everything I needed to know. THANK YOU. A word about mono CCDs and filters, Starizona sells the filter slider system, adding it eats up back (front?) focus and one needs to buy the shortened adapter for the camera to replace the standard adapter that works well for OSC or just mono imaging. They also have an adapter to use the 1.25 inch filters
@@DylanODonnell Way off topic - but the twidding the knob in the dark joke was great haha. Thanks for your video's , I've been watching for a while and they've been a great help for someone starting out.
Resolution depends on focal length as well. Otherwise, there is no meaning to have any scope but RASA, which is in popularity is well behind Edge. “It looks similar” doesn’t tell anything. FWHM and eccentricity numbers are needed.
Are there any disadvantages to using a Hyperstar on a standard sct? Thinking of getting one but seems like I may aswell use my standard sct 9.25 instead of investing in an edgehd. Only thing I can come up with would be focusing which from what I've heard is better on the edgehd.
Edge HD makes no difference as far as hyperstar goes. Star shapes will never be perfect at the edges, at F2 collimation, sensor tilt, back focus and focus become much more critical
![Telescope Back Focus: The Ultimate Guide [TAIC Short]](/img/n.gif)
Thank you very much for sharing this presentation which gave me the confidence to purchase a Hyperstar and experiment with it. I love you you guys!
Great interview thank you! I just new finally realized that you don't need a Hyperstar on a RASA 😂😂
The best way to observe using the RASA is clearly to use a live Atik Infinity video camera on the front and stack the image and "observe" not through an eyepiece but on a laptop using its dedicated capture software.
How HyperStar works;
HyperStar is a sophisticated coma corrector for a f2 reflector scope. The lower f stop comes from removing the SCT's second f5 magnification corrector mirror. f2 mirrors toss light around the outside at an angle to the camera sensor and filter the HyperStar straitens the light and corrects the distortion. Newtonian scopes normally stop at f4 because it takes less to correct however some are cut at f3, you can cut a deep f2 mirror for a Newtonian however finding a way to correct it may not be easy. The Newtonian's advantage over a SCT converted into a reflector is it can be used for direct viewing and you can use a filter wheel. Hyperstar turns one scope into two however it costs about what a second more versitile Newt scope costs and you won't have to fiddle as much.
Regarding flats, you can place a USB LED light panel on top of the dew shield and take flats that way. Thats how I do it.
Good video. But as far as covering the front of the scope without removing equipment I would think a large dew shield with a cover over the end would work fine. Yes you may have to fashion your own cover but its do able.
I have a C11 Edge with Hyperstar, yet to get started on it... This video explained nearly everything I needed to know. THANK YOU.
A word about mono CCDs and filters, Starizona sells the filter slider system, adding it eats up back (front?) focus and one needs to buy the shortened adapter for the camera to replace the standard adapter that works well for OSC or just mono imaging. They also have an adapter to use the 1.25 inch filters
I'm glad it helped :)
@@DylanODonnell Way off topic - but the twidding the knob in the dark joke was great haha. Thanks for your video's , I've been watching for a while and they've been a great help for someone starting out.
Resolution depends on focal length as well. Otherwise, there is no meaning to have any scope but RASA, which is in popularity is well behind Edge.
“It looks similar” doesn’t tell anything. FWHM and eccentricity numbers are needed.
Celestron now do a motor focus unit so autofocus can be used. Has made my Hyperstar sessions so much easier.
I have an HD 8" Is a 6.3 reducer even a good deal? I want to return the item because the HD has that lens included? thanks
Personally, I think The Horsehead / Flame is made even more special by Alnitck's prescience.
Is there a reason you wouldn't want to trace the lines for cables along one of the three the lines of front mirror frame?
Something wrong with the audio of your video.
Are there any disadvantages to using a Hyperstar on a standard sct?
Thinking of getting one but seems like I may aswell use my standard sct 9.25 instead of investing in an edgehd.
Only thing I can come up with would be focusing which from what I've heard is better on the edgehd.
Edge HD makes no difference as far as hyperstar goes. Star shapes will never be perfect at the edges, at F2 collimation, sensor tilt, back focus and focus become much more critical
Nobody prefers take pictures of galaxies with Hyperstar.
What's the low down with using filters and filter wheels using Hyperstar on say a C11HD?
The Baader Hi-Speed filters have greatly cut down on vignetting for me.
Rigel nStep has a focus adapter for Celestron scopes, and it works good for me.