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12-31-2009, 11:54 AM   #1
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Problem with 50mm XR Rikonen L f2 and Km

I recently bought a Ricoh KR-10 film SLR wich came with a 50mm XR Rikonen L f2 (Kmount). Apart from using the Ricoh camera I had planned to use the lens on my Pentax Km/K2000. It fits perfectly, but when I turn the camera on I can't do nothing, I can change options and modes and navigate trough the menu but in the manual mode it doesn't show any aperture/shutter values, and when I press the shutter the LCD goes black for half second and comes back again. Nothing else happens.
I'll add a picture so you can see what I mean

In the blue part it says [F---] and nothing else, I move the wheels or press the shutter at does nothing at all, in every mode. Anyone know what could be happening?

Also the camera works perfectly, and got my 18-55 kitlens on it and works perfectly again.

12-31-2009, 12:03 PM   #2
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See the sticky thread a the top of the beginner's forum that explains in great detail how to use manual lenses.
12-31-2009, 02:43 PM   #3
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Welcome to the forum carlosg! Your issue is one of the most common questions for new Pentax dSLR owners with these older lenses. Check out the thread that Marc suggested and have fun with your Rikenon and K-m (KR-10 too).

12-31-2009, 04:01 PM   #4
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Welcome to the forums carlosg.
Here is what Marc is talking about:
..and here is the thread about the same problem as yours:

06-28-2010, 11:48 PM   #5
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learned from this post
thank you

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