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Canon EF 24mm f/2.8

ef24mmf_28_1_
Review Date: Nov 22, 2007 Recommend? yes | Price paid: $290.00 | Rating: 8 

 
Pros: Compact, light, sharp with FF for the most part, depth of field scale
Cons:
Would have preferred USM for focusing but this is a minor gripe

My tests are based on certain goals and criterea:
1. Shooting with FF cameras, primarily 1Ds MkII.
2. Size and weight are very important as I do back country work and foreign travel
3. I regularly make very large prints (60X40 and larger) for my clients

I chose to test the this lens against the 24-70L 2.8 with the zoom set at 24mm. Here is my assessment in a comparison shooting landscapes at distances beyond 30 feet and out to infinity.

At 2.8 and 4.0 the prime is noticeably sharper in the center but from 2/3 out in the frame to the edges they are similar with the zoom a bit better on the far edges.

By f8 the two are virtually the same except the prime is better at the far corners. The zoom exhibits some of that infamous Canon wide zoom soft corner syndrome.

At f11 they are even more similar than at f8. The prime still slightly better at extreme corners.

I chose to keep the 24 2.8 and time/situation permitting will use it over the zoom (I have since gone to the 24-105 f4 L primarily for the IS) I usually shoot at smaller apertures so the 24 2.8 gives me slightly better corners and edges which are noticeable at the size prints I make. The 24 1.4L may be a tad better but I don't need the wide aperture and don't want the extra weight and size.

Now if Canon would just come out with some good ultra wide primes like a 17 or 20...