Question about Pentax K100D Digital Camera
If this is a manual focus lens, you will need to do two things (and an optional third thing.)
1) On the side of the camera, you have to switch the focus mode switch from "AF" (Autofocus) to "MF" (Manual focus) . . . Yeah. I know, you probably already did that. <grin>
2) When you press Menu, go to the Custom Setting and change the Allow aperture setting to on, so that the Pentax K100D will then work with manual control of the aperture ring. You need to do this or the K100D will not work with manual exposure lenses (M lenses) or even autoexposure lenses (KA, KA2, FA, etc.) when you move the aperture ring from the "A" position to one of the manual aperture settings!
3) This is optional, but in the Custom Setting you can also turn on the Fl in manual focus mode, so that even though you don't have autofocus capability, you will get a beep indicator when you have successfully managed to manually focus your lens.
I have a few nice manual focus lenses that I have a lot of fun playing with on my K100D.
Take care & Happing Imaging!
Posted on Jul 26, 2008
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Posted on Jan 02, 2017
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