Canon 24/2.8 vs 35/2.0

About the crops

In the "tree" crops, look at the way the low-key detail is rendered on the trunk. To my eye, the 35 pulls out just a hair more detail than the 24 -- too small a difference to matter in practice. The crop from the 50/1.8 is included for reference; it's not the same tree so it's not directly comparable, but to my eye, it appears to clearly beat both of its wider siblings.

The corner crop at f/11 is self-explanatory -- it's for testing CA. You can see it if you look hard, but there's remarkably little of it on a lens this wide.

The rest are a series shot with the EF 24/2.8 and EF 35/2.0, backing up with the 35 so that the wall was (approximately) the same size in both. All shot off the tripod, converted with DPP2.0, sharpening level 3, Faithful color. No other PP. Look at sharpness, contrast, and fall-off.

Analysis

The 24/2.8 and 35/2.0 behave very similarly, with the 24 being the more consistent of the two. However, it doesn't quite reach the center sharpness of the 35 in its sweet spot.

Both have rather soft corners wide-open, but the fall-off is abrupt and very near the edge of the frame; at f/4.0 or below this would be unnoticeable on most real-life subjects.

At f/11 both render a very good frame, although the 24/2.8 does show just a touch of lateral chromatic aberration (in my opinion too little to warrant correction except for really huge prints).

All apertures are usable on both lenses, although I would avoid stopping down to f/22 unless I had to, and stop down the 35/2.0 to f/2.8 if there is enough light.

In terms of contrast and color, the differences between the lenses are very small, although the 35/2.0 does seem just a touch contrastier to my eye, and may have a slightly cooler color balance (although this subject is not exactly ideal for testing color).

Both lenses would work well for situational or landscape/architectural shooting, producing very good to excellent center sharpness wide-open and excellent corner-to-corner sharpness stopped-down.

Tree, 24/2.8 at f/8.
Tree, 24/2.8 at f/8.
164 kB
Tree, 35/2.0 at f/8
Tree, 35/2.0 at f/8
178 kB
Tree, 50/1.8 at f/5.6
Tree, 50/1.8 at f/5.6
173 kB
24 mm at f/11, high-contrast corner
24 mm at f/11, high-contrast corner
209 kB
24/2.8, center.
24/2.8, center.
141 kB
35/2.8, center.
35/2.8, center.
142 kB
24/4.0, center.
24/4.0, center.
146 kB
35/4.0, center.
35/4.0, center.
148 kB
24/5.6, center.
24/5.6, center.
143 kB
35/5.6, center.
35/5.6, center.
148 kB
24/8.0, center.
24/8.0, center.
142 kB
35/8.0, center.
35/8.0, center.
146 kB
24/11, center.
24/11, center.
138 kB
35/11, center.
35/11, center.
144 kB
24/16, center.
24/16, center.
133 kB
35/16, center.
35/16, center.
138 kB
24/22, center.
24/22, center.
125 kB
35/22, center.
35/22, center.
129 kB
24/2.8, corner.
24/2.8, corner.
106 kB
35/2.8, corner.
35/2.8, corner.
111 kB
24/4.0, corner.
24/4.0, corner.
117 kB
35/4.0, corner.
35/4.0, corner.
122 kB
24/5.6, corner.
24/5.6, corner.
131 kB
35/5.6, corner.
35/5.6, corner.
132 kB
24/8.0, corner.
24/8.0, corner.
137 kB
35/8.0, corner.
35/8.0, corner.
138 kB
24/11, corner.
24/11, corner.
135 kB
35/11, corner.
35/11, corner.
138 kB
24/16, corner.
24/16, corner.
128 kB
35/16, corner.
35/16, corner.
134 kB
24/22, corner.
24/22, corner.
120 kB
35/22, corner.
35/22, corner.
126 kB
35/2.0, center
35/2.0, center
130 kB
35/2.0, corner.
35/2.0, corner.
98 kB