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Old 18-05-2013, 05:58 PM
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Phil Hart
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Join Date: Jan 2007
Location: Mount Glasgow (central Vic)
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Quote:
Originally Posted by Davi5678 View Post
Phil, could you define "pretty special optics" for a full frame camera?
A 6d is on my shopping list in the future and I'd hate to make an expensive purchase in error.
Most scopes are not designed for astrophotography, and even fewer are designed for astrophotography with a full frame sensor. To produce a 'flat' and close to fully illuminated field across a 35mm sensor is a tough job. A typical Schmidt-Cassegrain, Newtonian and most affordable refractors will not do it. You need a scope that is designed for imaging.. if so it will have specs for its image circle and perhaps even the 'spot size' at the centre and edge of the frame. Look at the types of scopes being used with big sensors in the Astrophotography gallery or anywhere else online. It's considerably less demanding with a cropped sensor camera.

Phil
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