> Conurus
The World's First Autofocus Conversion of Contax N lenses for Canon.

Many of the lenses tested here came from Adorama. Brooklyn remains one of the cheapest places on earth to buy kit from. These guys are not only reputable and friendly (for New Yorkers) they ship anywhere.

Autofocus Converted Contax N Test: 17-35mm f2.8

Contax N 17-35mm f2.8 v Nikon AFS 17-35mm f2.8


Performance at 24mm: f5.6 (Centre Frame)

dd dd Canon 24mm f1.4 L at f2.8
Contax N 17-35mm at 24mm/f5.6 Nikon 17-35mm AFS at 24mm/f5.6 Canon 24mm f1.4 L / f5.6
0 points
2 points
 1 point

We weren't learning anything new at f4, so I've skipped on to f5.6, at which point the Nikon still leads the pack centre frame (better even than the Canon, which is only just shaking off its central hiccups). It's a struggle to get anything as impressive from the Contax at this focal length, which seems to be stuck in the doldrums somehow. Most wide zoom lenses have sweet spots and out-of-favour moments: the Contax isn't keen on 24mm.

Performance at 24mm: f5.6 (10mm off-centre, left side)

dd dd Canon 24mm f1.4 L at f5.6
Contax N 17-35mm at 24mm/f5.6 Nikon 17-35mm AFS at 24mm/f5.6 Canon 24mm f1.4 L / f5.6
0 points
1 point
 2 points

Performance at 24mm: f5.6 (Upper left corner)

dd dd Canon 24mm f1.4 L at f5.6
Contax N 17-35mm at 24mm/f5.6 Nikon 17-35mm AFS at 24mm/f5.6 Canon 24mm f1.4 L / f5.6
0 points
1 point
 2 points

Again the Canon demonstrates why it won the 'Best 24mm' award. Let's hope it doesn't return from with all that loveliness calibrated away. Still suffering from CA, though.

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< Resolution Test: 24mm / f2.8   |  Resolution Test: 24mm / f8 >
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