> 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: f8 (Centre Frame)

dd dd Canon 24mm f1.4 L at f2.8
Contax N 17-35mm at 24mm/f8 Nikon 17-35mm AFS at 24mm/f8 Canon 24mm f1.4 L / f8
0 points
1 point
 2 points

By f8, the Zeiss Contax has improved significantly centre frame, but the Canon L has moved to the next level, just edging out the Nikon zoom.

Performance at 24mm: f8 (10mm off-centre, right side)

dd dd Canon 24mm f1.4 L at f8
Contax N 17-35mm at 24mm/f8 Nikon 17-35mm AFS at 24mm/f8 Canon 24mm f1.4 L / f8
1 point
0 points
 2 points

Performance at 24mm: f8 (Upper right corner)

dd dd Canon 24mm f1.4 L at f8
Contax N 17-35mm at 24mm/f8 Nikon 17-35mm AFS at 24mm/f8 Canon 24mm f1.4 L / f8
0 points
1 point
 2 points

The really good news is that by 24mm / f8, the Contax lens has finally lost its annulus horribilis: the torus of reduced resolution that made comparison with the Nikon 17-35mm so difficult at shorter focal lengths. Until the Zeiss ZF 25mm arrives, it's tough to see how there is much margin for improvement, resolution-wise, in the Canon 24L at f8. The Nikon is very close behind.

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< Resolution Test: 24mm / f5.6   |  Resolution Test: 24mm / f11 >
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