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03-06-2016, 09:59 AM   #16
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thanks a lot. that makes sense. whats the purpose of the automatic / manual lever on pentax 67 lenses?

03-07-2016, 07:26 AM   #17
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QuoteOriginally posted by csanjay Quote
thanks a lot. that makes sense. whats the purpose of the automatic / manual lever on pentax 67 lenses?
Two purposes. 1) Depth of field preview (works with all viewfinders). 2) With the metering finder, it allows stop-down metering when there is no metering connection between the lens and the prism (e.g., the metering chain is broken, or you're using the bellows or the reverse-lens adaptor).


Sterling
03-20-2016, 08:51 AM   #18
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So in 2) the camera body provides the diaphragm position information to the metering finder?
03-20-2016, 06:04 PM   #19
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QuoteOriginally posted by csanjay Quote
So in 2) the camera body provides the diaphragm position information to the metering finder?
No, the meter reads the amount of light entering it. Diaphragm position information is not transferred as is the case of the AUTO position metering.

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