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06-30-2013, 08:27 AM   #1
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Pentax K lenses - Camera displaying F

Just picked up a Chinon 200mm f2.2 and a Tamron 2x converter for next to nothing (I also got a SMC Pentax F 50mm f1.7) but when I put them on the camera I get no response and the camera just displays F - -. How do I get the camera to take pictures with them on please? The Pentax lens works billiantly btw - a bargain for ten quid I reckon.

06-30-2013, 08:30 AM   #2
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You need to enable the use of aperture ring in the custom menu of the camera.
06-30-2013, 08:37 AM   #3
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https://www.pentaxforums.com/forums/pentax-beginners-corner-q/110658-using-ma...x-dslrs-f.html
06-30-2013, 08:37 AM   #4
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Simples. Thank you very much :-)

06-30-2013, 08:39 AM   #5
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QuoteOriginally posted by redimp Quote
Simples. Thank you very much :-)
That will get the lens working. But to meter you will have to use M mode and the Green button.
06-30-2013, 08:56 AM   #6
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QuoteOriginally posted by boriscleto Quote
But to meter you will have to use M mode and the Green button.
Depending on the camera model
(and the TC behaviour if that's what you're using),
pressing the Av button in M mode
should automatically set the correct shutter speed
for the aperture you have selected with the aperture ring.
06-30-2013, 09:01 AM   #7
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Done it, selected aperture, pressed green button to select shutter speed and then pressed the shutter (first thing I did was focus confirm). Dead pleased because I got all three bits of glass plus a small tripod for 30. I now have the equivalent of a 600mm lens on a 35mm camera and because the 200 is quite fast, it all works ok.
06-30-2013, 10:03 AM   #8
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QuoteOriginally posted by redimp Quote
Done it, selected aperture, pressed green button to select shutter speed and then pressed the shutter (first thing I did was focus confirm). Dead pleased because I got all three bits of glass plus a small tripod for 30. I now have the equivalent of a 600mm lens on a 35mm camera and because the 200 is quite fast, it all works ok.
One question though. Are you sure it's a 2.2? I've seen Chinon F/3.3s but never a 2.2.

06-30-2013, 11:29 AM   #9
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It's a 3.3. Squinted at it while hurrying a post.
06-30-2013, 03:24 PM   #10
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Now I know this: SMC PENTAX-F 50MM F1.7 AUTOFOCUS LENS FOR PENTAX FILM/DIGITAL SLR'S | eBay is probably a ridiculous amount for this lens but it is sure as hell making me feel good about the tenner I paid
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