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Ilovemypentax · 02-01-2013, 11:43 AM

I tried a 645 400mm FA lens on the 645D Could not get the AF to work. Is there a trick to it? Or wonder is lens is broken?

Ole · 02-01-2013, 12:11 PM

Note that it has the push-pull focusing ring that turns AF on and off.

Ilovemypentax · 02-01-2013, 12:59 PM

That was it...BIG THANKS!!

Ryan Tischer · 02-01-2013, 01:38 PM

Took me a while to figure out when I first got my 645 gear too!

-Linus- · 02-02-2013, 12:17 PM

With my 645FA45 it's a bit wired, AF does work on 645Nii and not on 645Ds
Does not matter since it is the weakest lens in the whole 645 line.

-Linus-

02-01-2013, 11:43 AM	#1
Ilovemypentax Senior Member Join Date: Oct 2012 Posts: 121	Pentax 645 FA 400mm f/5.6 AF issue? I tried a 645 400mm FA lens on the 645D Could not get the AF to work. Is there a trick to it? Or wonder is lens is broken?

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02-01-2013, 12:11 PM	#2
Ole Administrator Join Date: Sep 2006 Location: Copenhagen, Denmark Photos: Gallery \| Albums Posts: 4,409	Note that it has the push-pull focusing ring that turns AF on and off.

02-01-2013, 12:59 PM	#3
Ilovemypentax Senior Member Join Date: Oct 2012 Posts: 121 Original Poster	That was it...BIG THANKS!!

02-01-2013, 01:38 PM	#4
Ryan Tischer Veteran Member Join Date: Feb 2012 Location: Duluth, Minnesota Photos: Albums Posts: 458	Took me a while to figure out when I first got my 645 gear too!

02-02-2013, 12:17 PM	#5
-Linus- Senior Member Join Date: Dec 2009 Location: Münsterland Posts: 139	With my 645FA45 it's a bit wired, AF does work on 645Nii and not on 645Ds Does not matter since it is the weakest lens in the whole 645 line. -Linus-

Pentax 645 FA 400mm f/5.6 AF issue?

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