EF-S 15-85, EF-S 17-85 and Tamron 17-50/f2.8 comparison (large images)

Started Oct 13, 2009 | Discussions thread
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Ed Richer
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EF-S 15-85, EF-S 17-85 and Tamron 17-50/f2.8 comparison (large images)
Oct 13, 2009

I just bought the EF-S 15-85 and a new 7D and I thought that you might be interested on how it compares with my EF-S 17-85 and Tamron 17-50 f/2.8.

All pictures taken from the same distance using a (relatively) sturdy tripod in live view (and mirror lockup, but I am not sure it works in live view).

Focus was done in live view by contrast method to eliminate diferences between lenses AF systems (my Tamron front focuses at 17 mm).

Shot in JPEG with all settings standard since Lightroom is still not ready for 7D.

I tested the 15-85 at 15 mm instead of 17 mm to show how much wider the FOV is.

The crops are from center and the lower/left corners of pictures. All lenses wide open and I used a remote to trigger the camera.

Here are the samples at minimal focal distance were the lenses are weaker. I have comparisons at 50mm and then 85mm (not the Tamron obviously). If you are interested look here:
http://edricher.smugmug.com/photos/swfpopup.mg?AlbumID=9958254&AlbumKey=tMiDB

EF-S 15-85 at 15 mm

Center:

Corner:

EF-S 17-85 at 17 mm:

Center:

Corner:

Tamron 17-50/f2.8 at 17mm:

Center:

Corner:

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Ed Richer

 Ed Richer's gear list:Ed Richer's gear list
Panasonic Lumix DMC-TS3 Canon EOS 7D Canon EF 50mm f/1.4 USM Canon EF 50mm f/1.8 II Canon EF-S 10-22mm f/3.5-4.5 USM +7 more
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