DA40 vs F50 f1,7 at f2.8

bdery · 09-26-2012, 04:41 AM

Has anyone ever compared those two lenses at around f2,8?

I own the F50 f1,7, rarely use is wider than f2,5, due to the too narrow DOF. It suits me very well. However, I also own the DA21 and just love the colors and rendering. I wonder if I would like the DA40's rendering more, and I would not loose much in real life IF, only IF they compare well at around f2,8.

Thanks in advance!

Marc Sabatella · 09-27-2012, 07:08 PM

When I compared my DA40 to my M50/1.7 (not sure if it's the same optically as the F50/1.7, but suspect it is), they were close enough that I doubt you get 3 randomly chosen people to agree one was clearly better. But any 300 people would easily agree the 40 is wider and the 50 longer. There is no possibile photographic situation I can imagine in which any IQ differences between these lenses would be more significant than the difference in focal length.

twitch · 09-27-2012, 09:01 PM

DA21 & DA40 have the same rendering as each other, and are both different from all the FA lenses I've used.

bdery · 09-28-2012, 05:38 AM

Thanks. I'll keep thinking about it. The difference in FL might be significant enough indeed.

Blue · 09-28-2012, 08:42 AM

Originally posted by twitch

DA21 & DA40 have the same rendering as each other, and are both different from all the FA lenses I've used.

Ironically, this is why I sold the DA 40 Ltd given I have a DA 35 Ltd.

Blue · 09-28-2012, 08:45 AM

Originally posted by Marc Sabatella

When I compared my DA40 to my M50/1.7 (not sure if it's the same optically as the F50/1.7, but suspect it is), they were close enough that I doubt you get 3 randomly chosen people to agree one was clearly better. But any 300 people would easily agree the 40 is wider and the 50 longer. There is no possibile photographic situation I can imagine in which any IQ differences between these lenses would be more significant than the difference in focal length.

The M through FA 50/1.7 are supposed to be the same optically as well as coatings.

audiobomber · 09-28-2012, 08:51 AM

I don't have a 50 1.7, but I have the DA 40 and FA 50 1.4. The FA 50 is sharper in the center at 2.8, the DA 40 is sharper in the corners. The DA 40 has a punchier more contrasty look, the FA 50 is more natural looking. I favour the 40mm for nature, the FA 50 for people.

09-26-2012, 04:41 AM	#1
bdery Pentaxian Join Date: Mar 2008 Location: Quebec city, Canada Photos: Gallery Posts: 9,357	DA40 vs F50 f1,7 at f2.8 Has anyone ever compared those two lenses at around f2,8? I own the F50 f1,7, rarely use is wider than f2,5, due to the too narrow DOF. It suits me very well. However, I also own the DA21 and just love the colors and rendering. I wonder if I would like the DA40's rendering more, and I would not loose much in real life IF, only IF they compare well at around f2,8. Thanks in advance!

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09-27-2012, 07:08 PM	#2
Marc Sabatella Veteran Member Join Date: Sep 2006 Location: Denver, CO Photos: Gallery Posts: 10,685	When I compared my DA40 to my M50/1.7 (not sure if it's the same optically as the F50/1.7, but suspect it is), they were close enough that I doubt you get 3 randomly chosen people to agree one was clearly better. But any 300 people would easily agree the 40 is wider and the 50 longer. There is no possibile photographic situation I can imagine in which any IQ differences between these lenses would be more significant than the difference in focal length.

09-27-2012, 09:01 PM	#3
twitch Veteran Member Join Date: Nov 2009 Posts: 4,571	DA21 & DA40 have the same rendering as each other, and are both different from all the FA lenses I've used.

09-28-2012, 05:38 AM	#4
bdery Pentaxian Join Date: Mar 2008 Location: Quebec city, Canada Photos: Gallery Posts: 9,357 Original Poster	Thanks. I'll keep thinking about it. The difference in FL might be significant enough indeed.

09-28-2012, 08:42 AM	#5
Blue Moderator Site Supporter Join Date: Jun 2008 Location: Florida Hill Country Photos: Gallery \| Albums Posts: 17,377	Originally posted by twitch DA21 & DA40 have the same rendering as each other, and are both different from all the FA lenses I've used. Ironically, this is why I sold the DA 40 Ltd given I have a DA 35 Ltd.

09-28-2012, 08:45 AM	#6
Blue Moderator Site Supporter Join Date: Jun 2008 Location: Florida Hill Country Photos: Gallery \| Albums Posts: 17,377	Originally posted by Marc Sabatella When I compared my DA40 to my M50/1.7 (not sure if it's the same optically as the F50/1.7, but suspect it is), they were close enough that I doubt you get 3 randomly chosen people to agree one was clearly better. But any 300 people would easily agree the 40 is wider and the 50 longer. There is no possibile photographic situation I can imagine in which any IQ differences between these lenses would be more significant than the difference in focal length. The M through FA 50/1.7 are supposed to be the same optically as well as coatings.

09-28-2012, 08:51 AM	#7
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	I don't have a 50 1.7, but I have the DA 40 and FA 50 1.4. The FA 50 is sharper in the center at 2.8, the DA 40 is sharper in the corners. The DA 40 has a punchier more contrasty look, the FA 50 is more natural looking. I favour the 40mm for nature, the FA 50 for people.

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