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Nikon
12 - 24 mm f/4, Tokina 12 - 24 mm f/4, Sigma 10 - 20 mm f/4 - 5.6
and Tamron 11 - 18 mm f/4.5 - 5.6. I've included comparisons to the Nikon 18 - 200 VR and 17 - 35 AF-S, since they reach the same 18mm setting.
California Sprawl. The red lines show the locations from which the next 100% crops come. f/5.6 Center
Center, 18 mm, f/5.6. They're all fine. I wouldn't worry about any differences here. The biggest differences are exposure. Top Left Corner
Top left corner, 18 mm, f/5.6. Big differences. Most are pretty good. The Nikon 17 - 35 mm f/2.8 AF-S is clearly the worst. The Nikon 18 - 200 VR and Tamron also have a lot of LCA. The Nikon 12 - 24 and Sigma are the best. Top Right Corner
Top right corner, 18 mm, f/5.6. These are all pretty close. The Tokina looks the best, while the others are too close to call. Note how one lens may have less LCA, but worse sharpness. They all are different in specific ways, but about the same overall. Lenses get sharper as they stop down. Let's try the same comparisons at f/11. f/11 Center Center at 12 mm, f/11. They are so similar I was too lazy to do the Photoshop work to create the crops. Top Left Corner
Top left corner, 18 mm and f/11. The Nikon is the winner. The Sigma is close, as is the Tokina. The Tamron is last of the four wide zooms. The 18 - 200 VR is after the Tamron, and the 17 - 35 AFS is dead last again. Top Right Corner
Top right corner, 18 mm, f/11. These are close, with the exception of the Sigma which is worst. The Tamron is third of the four wide zooms. The Nikon 18 - 200 VR is about as good as the Tamron and the 17 - 35 AF-S is about as good as the Tokina. Next: Sizes and Weights |
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