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Old 25-10-2019, 12:18 PM
bigjoe (JOSEPH)
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Join Date: Nov 2010
Location: sydney
Posts: 1,363
Quote:
Originally Posted by Tulloch View Post
Well, my first use of a (2nd hand) C9.25 OTA on my old Evolution mount. I picked up the OTA for sale on IIS about a month ago, I took the plunge to try and cure my aperture fever, moving from a 6" to a 9.25.

I'm pretty happy with how Saturn turned out. I think I can claim that the polar hexagon shows straight sides, which is a definite improvement over the dark blobs I was able to get with the 6" previously.

Andrew

Celestron Evolution C9.25" SCT with 2x Barlow, ASI 224MC, 50% of 30000 frames, stacked in AS!3 with 3x drizzle, sharpened in Registax, final touches in Photoshop Elements, Saturn shown 200% captured.
Looks great Andrew ..I have a CPC 925 and its great on the Planets better than my 130mm Apo triplet , of course wipes out my new 60mm Tak at 200x , I had the CPC 925 at 500x on Saturn one great night...Soo much detail the 130mm Apo Slightly sharper on an average night!

These scopes were said anecdotally , to be designed by Vixen opticians when they had a relationship with Celestron ..a different format from the usual SCT with a much flatter field and high strehls, and on average sharper IMO...Enjoy!
Bigjoe
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