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05-01-2008, 01:37 PM   #1
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Question about "A" series lenses

Can someone tell me if "A" series lenses - particularly the A 50mm f/1.2 - will use the AutoFocus on a K10D or a K20D?

I have the opportunity to buy an A 50mm f/1.2 but I'f just like to know if I'd be buying a manual focus only lens, or if it would use the AF.

Thanks

05-01-2008, 01:39 PM   #2
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it's an MF lens, but full Auto Exposure capabilities
05-01-2008, 02:48 PM   #3
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MF as k100d has said. Set the aperture ring to the 'A' position and the lens will work in all exposure modes.

This site Welcome to Bojidar Dimitrov's Pentax K-Mount Page is a wonderful resource for all things K mount.
05-01-2008, 02:54 PM   #4
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I have been using this chart as I poke around craigslist and ebay to see what gems are available in my area:

The Pentax Camera Lens Compatibility Chart

05-01-2008, 03:03 PM   #5
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Original Poster
Thanks for the rapid responses troops - much appreciated.

I think I will get this lens, despite being MF only. I don't really have a very fast lens, and I have a late afternoon/twilight wedding coming up in 2 weeks, all outdoors in the sunset. I should be able to use the f/1.2 to get shots with no flash until a fair bit later in the proceedings.

The cost of the lens is reasonable - at least in Aussie dollar terms - so worth adding to my armory.

Thanks again
05-01-2008, 03:57 PM   #6
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from what i've read, it's a great lens. can't imagine regretting it.
plus AF in the dark isn't that great anyways
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