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| Tags: leica lenses, leica pocket book, mtf |
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03/19/07, 04:05 PM
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#1 (permalink) |
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Erfahrener Benutzer
Join Date: 09/09/05
Posts: 543
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leica pocket book received
I brought months ago - from our sponsor Amazon.com - the 7th edition of Leica pocket book. Received it saturday and found it well done. There is however something of not clear. Someone know how the shown MTF curves have been obtained?
I suspect at least one of them is wrong. Fernando. |
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03/19/07, 10:49 PM
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#2 (permalink) |
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Erfahrener Benutzer
Join Date: 06/27/04
Location: Cambridgeshire
Posts: 456
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Re: leica pocket book received
Fernando, Many of us have this book ... please advise which MTF charts might be erroneous ... then we can comment.
Cheers dunk
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03/19/07, 10:49 PM
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#3 (permalink) |
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Erfahrener Benutzer
Join Date: 06/27/04
Location: Cambridgeshire
Posts: 456
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Re: leica pocket book received
Fernando, Many of us have this book ... please advise which MTF charts might be erroneous ... then we can comment.
Cheers dunk
__________________
Every day has its dog ... |
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03/20/07, 09:34 AM
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#4 (permalink) |
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Erfahrener Benutzer
Join Date: 09/09/05
Posts: 543
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Re: leica pocket book received
Duncan,
I was pointing at the R180/2.8 2nd version (non APO). I've seen it tested by a lab that usually tests aerospace optics and the results are much different! So I have some suspect about the published curves. Fernando. |
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