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Author Topic: Testing a Lens  (Read 2462 times)
Christoph C. Feldhaim
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There is no rule! No - wait ...


« Reply #20 on: June 20, 2011, 07:58:09 AM »
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I have emailed Zeiss and they sent me these links:

http://www.zeiss.de/C12567A8003B8B6F/EmbedTitelIntern/CLN_30_MTF_en/$File/CLN_MTF_Kurven_EN.pdf
http://www.zeiss.de/C12567A8003B8B6F/EmbedTitelIntern/CLN_31_MTF_en/$File/CLN_MTF_Kurven_2_en.pdf

They wrote, they are restructuring their website (basically making CLN a blog) and will make the old CLN issues available in english.
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jsch
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« Reply #21 on: June 20, 2011, 10:18:29 AM »
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Hi everyone,

about "testing lenses" I once read two very interesting articles on the lensrental blog and want to share them here:

HOW TO TEST A LENS
http://www.lensrentals.com/blog/2010/11/how-to-test-a-lens

and

“THIS LENS IS SOFT” AND OTHER FACTS
http://www.lensrentals.com/blog/2010/03/this-lens-is-soft-and-other-facts

Best,
Johannes
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jonathan.lipkin
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« Reply #22 on: July 12, 2011, 08:14:48 AM »
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I finally got over to Fotocare to test the lens in question (50mm II vs. older 50mm). I shot some shelving that had boxes of Epson paper on it, and compared images on the screen at 100% magnification. The newer lens was a bit better in the corners, but they seemed to be about the same in terms of quality and not worth the money to upgrade lenses, IMHO.
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