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03-07-2009, 11:40 PM   #1
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K20D Won't Work with my 50mm SMC 1.7! HELP!

Hello,
I just bought a nice 50mm SMC 1.7 off ebay. I thought Pentax k20d's could use any Pentax lens.

Mine won't work. As soon as the lens is fully attached, the camera blanks out and won't take any photos! It will take photos with my modern manual lens, and without any lens attached, but not with my 50mm SMC 1.7 off ebay.

What's wrong? I thought vintage lenses worked!

I tried every mode, especially the green and aperture mode, but nothing works. It won't take a picture, and it just blanks out.

Please help.

TIA!

03-07-2009, 11:46 PM   #2
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Join Date: Jan 2009
Location: Canada
Posts: 1,255
QuoteOriginally posted by PentaxForums-User Quote
Hello,
I just bought a nice 50mm SMC 1.7 off ebay. I thought Pentax k20d's could use any Pentax lens.

Mine won't work. As soon as the lens is fully attached, the camera blanks out and won't take any photos! It will take photos with my modern manual lens, and without any lens attached, but not with my 50mm SMC 1.7 off ebay.

What's wrong? I thought vintage lenses worked!

I tried every mode, especially the green and aperture mode, but nothing works. It won't take a picture, and it just blanks out.

Please help.

TIA!
You have to allow using aperture ring in the options menu and shoot in Manual mode; use the green button to automatically set the exposure.
03-08-2009, 12:06 AM   #3
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Join Date: Mar 2009
Location: New Orleans
Posts: 263
Original Poster
Thanks! Found the answer here, and after a quick search! Got it working!
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