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Old 07-06-2014, 08:08 PM
kkara4 (Krishan)
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Join Date: May 2014
Location: Bellbowrie, Brisbane
Posts: 416
Quote:
Originally Posted by Amaranthus View Post
kkara, you won't see planetary images like that visually - you need to use a planetary cam and take 1000s of frames, then stack the best ones. But visually, the C9.25 will still show really nice planetary views.

The NexImage 5 has a chip with a diagonal of 7mm, so on my f10 C8 the magnification was about 290x (or 720x at f/25)
Thanks Barry, oh yes I assumed that you did a big stack, I use DSS for my widefield stuff and had a small play with Registax for some AVIs that I did but need a lot more practice I think! I guess what i meant to say was how great it looked in terms of the size in the image and the resolution you got it at, which makes perfect sense given you were magnifying at 290x effectively!

Since the 5D is a full frame sensor I need the powermates to boost up my effective focal length to get me an equivalent resolution image to perhaps what some of the CCDs can achieve...currently I get about 20 pixels across the rings edge to edge at 580mm = about 12x magnification. With the 2350 C9.25 and 4x powermate = 9400mm = about 188x magnification, I should get about 300 pixels across on Saturn. Just my initial calcs/thoughts!
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