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01-22-2014, 08:27 PM   #1
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Hey there Pentax fans

Hi everyone! I am a long time happy owner of a Spotmatic kit and decided to join the forum now that I am easing toward digital -- I have a K-5 but no DA lenses and am thinking about picking up a DA prime....

01-22-2014, 09:11 PM   #2
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Welcome from Iowa!! I assume you have been using those fine Takumar lenses on your K-5! If not, get an adapter and try em out!! Have fun and post often!!
Joel
01-22-2014, 11:39 PM   #3
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QuoteOriginally posted by Joel B Quote
Welcome from Iowa!! I assume you have been using those fine Takumar lenses on your K-5! If not, get an adapter and try em out!! Have fun and post often!!
Joel
Thanks, Joel. I have been using them on my K-5. Question for you all: when using a manual full frame lens on the K-5 and inputting the focal length, should I input the full frame focal length or convert it (x0.66) for the crop-sensor focal length equivalent?
01-23-2014, 01:11 AM   #4
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QuoteOriginally posted by gu503 Quote
am thinking about picking up a DA prime
Welcome to the forum, I'm a tad bias and partial to the odd prime lens myself too.

01-23-2014, 02:44 AM   #5
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QuoteOriginally posted by gu503 Quote
Thanks, Joel. I have been using them on my K-5. Question for you all: when using a manual full frame lens on the K-5 and inputting the focal length, should I input the full frame focal length or convert it (x0.66) for the crop-sensor focal length equivalent?
Hi and welcome

The Focal length of the lens does not change, irrespective of the body it is mounted to. The makers of the K-5 know this, so just input the focal length inscribed on the lens.

Have fun, the K-5 is a great camera
01-26-2014, 07:34 PM   #6
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QuoteOriginally posted by wizofoz Quote
Hi and welcome

The Focal length of the lens does not change, irrespective of the body it is mounted to. The makers of the K-5 know this, so just input the focal length inscribed on the lens.

Have fun, the K-5 is a great camera
Thanks!
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