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05-14-2010, 12:50 PM   #1
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Join Date: May 2010
Location: USA
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Pentax K-X with manual lesn Phenix f/1.7-22 50mm

I purchased a new lens with manual focus out of curiosity. I set the aperture ring to permitted under custom camera setting to make the manual lens to work in my camera but when I started taking some picture it looks like if I choose f/1.7 compared with f/22 there is no difference. The picture always look like f/1.7 even though I set the aperture ring to f/22. Does anybody in this forum had the same experience from the past?

05-14-2010, 12:54 PM   #2
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Join Date: Dec 2009
Location: Liverpool, NY
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Read through this thread.

https://www.pentaxforums.com/forums/pentax-beginners-corner-q/59272-shooting-...x-dslrs-f.html

You have to use M mode for the aperture to work. Press the AV +- button to stop down and set the exposure.
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