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01-22-2011, 06:00 PM   #1
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M Lenses on a K5

I have read several articles about the use of M lenses but am not sure I completely
understand how to use them. Can you use them in Aperture priority mode or only in manual mode.

Jim

01-22-2011, 06:45 PM   #2
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M lenses have to be used in Manual mode with the Green Button for stop down metering. Cameras with a "Crippled" KAF mount lack the stop-down coupler which communicates aperture information from non-A lenses. M42 lenses can be used in AV Mode with EV compensation.
01-22-2011, 07:04 PM   #3
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This article as well as the first reply to it should answer your question perfectly: https://www.pentaxforums.com/forums/pentax-lens-articles/110657-how-use-manua...7-k-x-etc.html

Adam
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