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Old 09-02-2011, 06:26 AM
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Astroman (Andrew Wall)
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Astroman is offline
 
Join Date: Feb 2005
Location: Paralowie, South Australia
Posts: 4,367
Quote:
Originally Posted by bojan View Post
That depends on what you want to do.
It is perfectly adequate for serious work, like novae and variables...

It is interesting to see the comparison of various 50mm Canon lenses.. see the link below.
http://www.astrosurf.com/~buil/50mm/test.htm
None of them is perfect at full aperture, but at f4-~5.6 are better..
F1.2 at f5.6 is the best of a lot. The same philosophy applies to other brands as well.
Great link, some good comparisons there...

Last edited by Astroman; 09-02-2011 at 06:30 AM. Reason: decided to change what I said :D
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