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10-25-2010, 10:15 AM   #1
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Help please

I am thinking of buying F*300 F4.5 lens and I would like to know if this lens auto focuses with my K-5 body.
Thank you for any information you can provide.
Harish


Last edited by Harish Hegde; 10-25-2010 at 10:21 AM.
10-25-2010, 10:16 AM   #2
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Yes, any K-mount screwdrive AF lens will AF on any Pentax dSLR.
10-25-2010, 03:41 PM   #3
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QuoteOriginally posted by deadwolfbones Quote
Yes, any K-mount screwdrive AF lens will AF on any Pentax dSLR.
I found out that it is similar to FA lens except when using manual focus, the camera also has to be switched to M mode.
Thank you.
Harish
10-25-2010, 04:57 PM   #4
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QuoteOriginally posted by Harish Hegde Quote
I found out that it is similar to FA lens except when using manual focus, the camera also has to be switched to M mode.
Thank you.
Harish
I assume you mean Manual Focus. This is true with FA lenses as well. I don't know about the F* but the FA* lenses can disengage the auto focus without doing so on the camera. Useful for Catch In Focus. M mode is the exposure program where you choose all your own settings, aperture, shutter speed, and ISO. M Mode has nothing to do with auto focus.



10-25-2010, 05:47 PM   #5
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QuoteOriginally posted by JeffJS Quote
I assume you mean Manual Focus. This is true with FA lenses as well. I don't know about the F* but the FA* lenses can disengage the auto focus without doing so on the camera. Useful for Catch In Focus. M mode is the exposure program where you choose all your own settings, aperture, shutter speed, and ISO. M Mode has nothing to do with auto focus.

Yes, I mean Manual Focus on the camera.I think FA is better that way but, lacks the tripod collar which is what I need for bird shooting with SR off.
Harish
10-25-2010, 06:06 PM   #6
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Why not a DA* if you're spending the money? Much easier to find.
10-25-2010, 06:27 PM   #7
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QuoteOriginally posted by Rory Quote
Why not a DA* if you're spending the money? Much easier to find.
I found a good lens, as a matter of fact I found a FA lens as well. But, I am going with the F* because of the tripod collar and I find the color rendition to be better with FA lens than with DA lens, just for my liking. I use DA 300 only in inclement conditions. But, I might sell it to finance this lens.

Harish

Last edited by Harish Hegde; 10-25-2010 at 08:28 PM.
10-25-2010, 06:42 PM   #8
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QuoteOriginally posted by Harish Hegde Quote
I found a good lens as a matter of fact I found a FA lens as well. But, I am going with the F* because of the tripod collar and I find the color rendition to be better with FA lens than with DA lens, just for my liking. I use DA 300 only in inclement conditions. But, I might sell it to finance this lens.

Harish
Ah, ok. I thought you were just looking for that focal length. Didn't know you already had one. Carry on.

10-25-2010, 08:27 PM   #9
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QuoteOriginally posted by Rory Quote
Ah, ok. I thought you were just looking for that focal length. Didn't know you already had one. Carry on.
OK will do. LOL..
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