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07-26-2013, 12:42 PM - 1 Like   #1
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Simple lens survey of 15 lenses

Hi everyone!

Long time lurker, first time poster here

I've done a very simple test of 15 different lenses; I have no fetish for brick walls, but wanted to do a quick test of bokeh and chromatic aberration. To do so, I shot two images with every lens; one image fully open, and one image at a smaller aperture. For the 50mm lenses, the second shot was taken with an aperture of 2.8, but for the other lenses I chose just one step down. All images were taken using a Sony Nex-3, firmly held against a table (there may be small shifts in perspective, but nothing too serious for such a simple test). Focus were confirmed by x7 magnification on the LCD screen.

By the way; the Sony Nex user interface is driving me nuts, but I couldn't use my Pentax K-7 for this test, as I wanted to test Leica screwmount, Leica M, M42, Pentax-K and Nikon lenses on the same sensor...

Comments and observations are welcome!

Carl Zeiss C-Sonnar 50mm f1.5

Carl Zeiss C-Sonnar 50mm f2.8

Jupiter-8 50mm f2

Jupiter-8 50mm f2.8

Takumar 55mm/1.8 no 7339889 f1.8

Takumar 55mm/1.8 no 7339889 f2.8

Takumar 55mm/1.8 no 4718062 f1.8

Takumar 55mm/1.8 no 4718062 f2.8

Takumar 50mm/1.4 no 6626456 f1.4

Takumar 50mm/1.4 no 6626456 f2.8

Pentacon 50mm f1.8

Pentacon 50mm f2.8

Pentax-M 50mm/1.7 no 3354577 f1.7

Pentax-M 50mm/1.7 no 3354577 f2.8

Pentax-M 50mm/1.4 no 7142355 f1.4

Pentax-M 50mm/1.4 no 7142355 f2.8

Nikon-E 50mm/1.8 f1.8

Nikon-E 50mm/1.8 f2.8

Nikkor 50mm/2 f2

Nikkor 50mm/2 f2.8

Nikon-E 100mm/2.8 f2.8

Nikon-E 100mm/2.8 f4

Takumar 100mm/4 macro f4

Takumar 100mm/4 macro f5.6

Hanimar 135mm/2.8 f2.8

Hanimar 135mm/2.8 f4

Takumar 135mm/3.5 f3.5

Takumar 135mm/3.5 f5.6

Soligor 135mm/2.8 T2 preset f2.8

Soligor 135mm/2.8 T2 preset f5.6 (round aperture blades...)

07-26-2013, 03:11 PM   #2
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I think the Jupiter got the nicest OOF areas, but with serious bloom in the focus area. The Tak 100/4 Macro looks surprisingly good with impressive contrast for such an old lens.
07-26-2013, 07:38 PM   #3
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Contrast seems to be uniformly low (veiling flare?) across the group. I have several of the lenses on this page and generally get somewhat better results.

07-26-2013, 10:34 PM   #4
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I'd suggest to repeat the test with window behind you, not in front.

07-27-2013, 12:11 AM   #5
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Well, the window is deliberately part of the image - the idea was to test the lenses in a worse case scenario, and I often shoot against the light. But surely I agree - these lenses would perform much better in more normal lighting and with apertures in the 4 - 5.6 range.
07-27-2013, 03:29 PM - 1 Like   #6
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I was going to post a similar test with a batch of old normal lenses I have, all 50 or 55mm, but outdoor shots on sunny days focused on a distant target all at f/5.6. I have the pictures (taken on different days in approx. a two week period) but can't spare the time right now to make the post. I thought I'd make it fun by not naming the lenses for a few days, letting the group choose a favorite then putting the information. All are MF, K-mount or M42 except I put in one from a modern AF zoom, so the EXIF won't show much except the focal length for all but the modern lens. I know it's unscientific, but it's just for amusement.

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