Pentax SMC Pentax-FA 645 MACRO 120mm f/4 AF VS SMC Pentax-A

Eduard Kraft · 06-06-2011, 06:37 AM

Hello. What are the views, if we compare these lenses? Interested in image quality. If there are examples of the photo - it would be good.
AF for macro is not the most important thing. Which one to buy for Pentax 645D
Thank you.

Adam · 06-06-2011, 06:49 AM

I'd get the A- a while back I tested them side-by-side and favored it over the FA in terms of both IQ and handling.

Thomas · 06-07-2011, 06:33 AM

Eduard:

I have both. Image quality and optical design are identical. The A version has more solid feel and is better for manual focus with a much longer throw than the FA. FA version is better only if you need AF.

Eduard Kraft · 06-07-2011, 11:15 AM

Thank you very much for your reply, Thomas.
And another question "A" version does not suffer hromatic aberation?

Thomas · 06-07-2011, 02:48 PM

Originally posted by Eduard Kraft

Thank you very much for your reply, Thomas.
And another question "A" version does not suffer hromatic aberation?

Very slight blue/cyan at the edges of the frame. I only see it in the areas with extreme contrast, e.g. dark tree branch against a bright white sky. Easy fix in PS, but in most cases I don't bother.

GeneV · 06-08-2011, 08:38 AM

I'm quite happy with the 120 A macro. This one is pretty close to 1:1.

06-06-2011, 06:37 AM	#1
Eduard Kraft Junior Member Join Date: May 2011 Location: Moscow Posts: 23	[langtitle=ru]Pentax SMC Pentax-FA 645 MACRO 120mm f/4 AF VS SMC Pentax-A[/langtitle] Hello. What are the views, if we compare these lenses? Interested in image quality. If there are examples of the photo - it would be good. AF for macro is not the most important thing. Which one to buy for Pentax 645D Thank you.

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06-06-2011, 06:49 AM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,124	I'd get the A- a while back I tested them side-by-side and favored it over the FA in terms of both IQ and handling.

06-07-2011, 06:33 AM	#3
Thomas Veteran Member Join Date: Feb 2008 Photos: Gallery \| Albums Posts: 434	Eduard: I have both. Image quality and optical design are identical. The A version has more solid feel and is better for manual focus with a much longer throw than the FA. FA version is better only if you need AF.

06-07-2011, 11:15 AM	#4
Eduard Kraft Junior Member Join Date: May 2011 Location: Moscow Posts: 23 Original Poster	Thank you very much for your reply, Thomas. And another question "A" version does not suffer hromatic aberation?

06-07-2011, 02:48 PM	#5
Thomas Veteran Member Join Date: Feb 2008 Photos: Gallery \| Albums Posts: 434	Originally posted by Eduard Kraft Thank you very much for your reply, Thomas. And another question "A" version does not suffer hromatic aberation? Very slight blue/cyan at the edges of the frame. I only see it in the areas with extreme contrast, e.g. dark tree branch against a bright white sky. Easy fix in PS, but in most cases I don't bother.

06-08-2011, 08:38 AM	#6
GeneV Veteran Member Join Date: Oct 2008 Location: Albuquerque NM Photos: Albums Posts: 9,830	I'm quite happy with the 120 A macro. This one is pretty close to 1:1.

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