Quote:
Originally Posted by casstony
Hi Peter, for visual in the 9.25 size I’d probably stick with the standard SCT. I’ve owned both versions and the C9.25 isn’t so bad at the edge of field.
In SCT sizes other than 9.25 I find the outer field horribly bad.
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Well I'm happy with my 9.25 edge. Obviously if you are asking about aperture then sure 11 inch is brighter. However I had an 11 inch circa 2000 sct and Was unhappy with the stars. On the edge they appeared pinpoint out to the edge.
If you are looking at extended objects then there is not much difference. For photography it's great. It has mirror locks, is light and after taking off the corrector and secondary I found the mechanical design far superior. No cork/ paper shims etc, clear registration marks and so on.
You will find accessories more expensive though. No more cheap f6.3 reducer, the edge hd one is around 500 dollars.
As with anything you get what you pay for; and you need to be happy with it. When it's collimated I get pinpoint stars to the edge.
My 2 cents.
Paul