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Old 06-03-2012, 07:54 PM
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bojan
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Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,054
Have a look at Christian Buil's evaluation of canon lenses:
http://www.astrosurf.com/buil/50mm/test_us.htm
I modified older mechanical Canon F1.4 FD to fit EOS for wide fields, and I have to close it down to F3.5 or more. Then it is pin-point sharp, even at corners (of my 400d - full frame sensor, being larger, may show more coma).
http://www.iceinspace.com.au/forum/s...ad.php?t=39293
The whole job cost me <~100$.

Last edited by bojan; 06-03-2012 at 08:05 PM.
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