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Canon EF-S 17-55mm f/2.8 IS USM
akiskev:
Canon 400d - 17-55 @17mm, f/8
For testing purposes:
edit: full size image removed by host
Image converted from raw to jpeg with adobe camera raw, default settings.
Axilrod:
--- Quote from: 87vr6 on April 07, 2011, 11:52:56 AM ---
--- Quote from: Goincarcrazy on January 03, 2011, 12:04:18 PM ---The EF-S lens that has had some full frame users jealous for a while.
--- End quote ---
--- Quote from: neuroanatomist on April 06, 2011, 02:29:21 PM ---Not the educated ones, who would know that the EF-S 17-55mm f/2.8 IS on a crop body is out-spec'd by the EF 24-105mm f/4L IS used on FF, since the FF-equivalent of 17-55mm f/2.8 is 27-88mm f/4.5 (becuase the crop factor affects aperture in terms of DoF for equivalent framing), and the 1-stop effect on shutter speed is more than compensated for bu the 1.33-stop improvement in ISO noise with the additional light gathering ability of a FF sensor). So, the 24-105 on FF is wider, longer, and faster than the 17-55mm on crop, still has IS, and is weather-sealed with L-quality build to match.
--- End quote ---
I think what they mean by making FF owners jealous is that the closer equivilent lens would be the 24-70 2.8 which lacks IS.. Because if they added the IS to that lens, that would be the choice for a all around lens for FF bodies.
--- End quote ---
I've used both, and the 17-55 on a T2i was sharper than both copies of the 24-70 I've had on a 5D. I was really shocked the first time I used that lens.
akiskev:
17-55 @17mm.
f/2.8
f/5.6
f/2.8 center crop 100%
f/5.6 center crop 100%
f/2.8 edge crop 100%
f/5.6 edge crop 100%
omgitssir:
f/2.8 + IS = WIN
Twilight Reflection by Sir Adam Abille, on Flickr
jeffryTanudjaja:
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