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ColColt · 09-12-2015, 04:06 PM

I'm looking at two of these 6x7 55 f4 lens. One a late model and one maybe a tad older but still a post-Takumar lens. Which would be the better of the two? Or, does it matter. One has 8 elements in 7 groups and the other 9 elements in 8 groups.

https://www.keh.com/290297/pentax-55mm-f-4-smc-lens-for-pentax-6x7-series-77

https://www.keh.com/290263/pentax-55mm-f-4-smc-late-lens-for-pentax-6x7-series-77

Adam · 09-12-2015, 04:23 PM

Based on user reviews, the new version is better optically but also a bit heavier. With such a small difference in price I would probably go for the newer one.

SMC Pentax 67 55mm F4 Reviews - 67 Wide-Angle Primes - Pentax Lens Reviews & Lens Database

ColColt · 09-12-2015, 04:38 PM

That's the one I'll go for, thanks.

tuco · 09-14-2015, 09:00 AM

The Pentax 67 55/4 is optically different than the Pentax 6x7 55/4 generation. The 67 generation of that lens is more highly regarded than the prior 6x7 generation. I shoot the 67 generation version of that lens and and like it a lot.

lenticular · 09-21-2015, 10:28 AM

i bought the late one also. I've been very impressed with it.

desertscape · 09-21-2015, 12:19 PM

Yeah, the latest 55mm f/4 was a total redesign from the second version. The latest is a Distagon-like design using thin elements, while the second version is somewhat similar to the 45mm, which used some thick elements and had a Biogon heritage.

09-12-2015, 04:06 PM	#1
ColColt Senior Member Join Date: Jun 2015 Posts: 196	55 Lens I'm looking at two of these 6x7 55 f4 lens. One a late model and one maybe a tad older but still a post-Takumar lens. Which would be the better of the two? Or, does it matter. One has 8 elements in 7 groups and the other 9 elements in 8 groups. https://www.keh.com/290297/pentax-55mm-f-4-smc-lens-for-pentax-6x7-series-77 https://www.keh.com/290263/pentax-55mm-f-4-smc-late-lens-for-pentax-6x7-series-77

09-12-2015, 04:23 PM	#2
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,609	Based on user reviews, the new version is better optically but also a bit heavier. With such a small difference in price I would probably go for the newer one. SMC Pentax 67 55mm F4 Reviews - 67 Wide-Angle Primes - Pentax Lens Reviews & Lens Database Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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09-12-2015, 04:38 PM	#3
ColColt Senior Member Join Date: Jun 2015 Posts: 196 Original Poster	That's the one I'll go for, thanks.

09-14-2015, 09:00 AM	#4
tuco Pentaxian Join Date: Jul 2009 Location: Pugetopolis Posts: 11,033	The Pentax 67 55/4 is optically different than the Pentax 6x7 55/4 generation. The 67 generation of that lens is more highly regarded than the prior 6x7 generation. I shoot the 67 generation version of that lens and and like it a lot.

09-21-2015, 10:28 AM	#5
lenticular Senior Member Join Date: Jun 2013 Location: Canberra Photos: Gallery \| Albums Posts: 199	i bought the late one also. I've been very impressed with it.

09-21-2015, 12:19 PM	#6
desertscape Pentaxian Join Date: Feb 2009 Location: Arizona Posts: 1,272	Yeah, the latest 55mm f/4 was a total redesign from the second version. The latest is a Distagon-like design using thin elements, while the second version is somewhat similar to the 45mm, which used some thick elements and had a Biogon heritage.

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