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01-26-2010, 02:40 PM   #1
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adapter for manual focus K mount lens

This question has probably already been asked and answered, but I could not find it.

Does anyone make adapters that will allow old manual focus K mount lens to be used with a Pentax dlsr?

I have a 42mm screw mount lens to Pentax dslr adapter, but I would love to be able to use a couple of old manual focus K mount lenses with my digital.

Thanks for any information.

01-26-2010, 02:42 PM   #2
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You don't need a k-mount adapter to use a k-mount lens on a Pentax dSLR. A series work fully except for manual focusing and the M and k series work in manual mode with use of the green button etc.
01-26-2010, 04:27 PM   #3
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You do need to go into the customization menu and set the "use aperture ring" to allowed. After you do that, manual mode, select the aperture on the lens, hit the green button and shoot
01-26-2010, 06:08 PM   #4
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If it mounts, you can use it...
  • Enable aperture ring (menu setting)
  • M mode using green button to stop down the lens
  • Metering is a bit inconsistent at wider apertures


01-26-2010, 06:42 PM   #5
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And see the sticky thread on using manual lenses in the Beginner's forum if you would like more info on the process.
01-27-2010, 01:19 PM   #6
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Original Poster

Thanks for the information.

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