Quote:
Originally Posted by gregbradley
I do use my large format camera with the reducer as well. F4.45 and 17 inches gives faster images. I want the scope to be versatile. An OAG or a self guided camera is a necessity these days at the minimum for best images.
Cropping does not seem to emulate the above.
Greg.
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Perhaps Paul meant binning. Cropping would be used to get rid of off-axis aberrations, for the CDK they are low and the reducer would most likely make them worse (but further out in an absolute FOV way). Binning or resizing the image accomplishes the same as the reducer EXCEPT for the smaller FOV. You get the same shorter subs out of the reducer and binning, and of course in both case you don't get more signal per unit time. So again, what is the reducer for...FOV, is this what you are after?
EB