Tamron SP 70-300 mm f/4-5.6 Di VC USD
6. Distortion
|
|
70 mm |
135 mm |
200 mm |
300 mm |
|
APS-C/DX |
−0.10% |
0.80% |
0.82% |
0.81% |
| FF |
−0.09% |
2.12% |
2.05% |
1.89% |
As you see, on both sensors at the shortest focal length the distortion is negligible and, within the margin of measurement errors, close to the zero level. At longer focal lengths the deformations keep more or less the same level of 0.8% for the DX sensor and about 2% on full frame. These aren’t bothersome values so it would be hard to complain here. Our chronicle duty makes us only say that the values of the rival Sigma were by a fraction of a percent lower.
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| Nikon D200, 70 mm | |||
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| Nikon D200, 135 mm | |||
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| Nikon D200, 200 mm | |||
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| Nikon D200, 300 mm | |||
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| Nikon D3x, 70 mm | |||
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| Nikon D3x, 135 mm | |||
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| Nikon D3x, 200 mm | |||
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| Nikon D3x, 300 mm | |||
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