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Lens review

Tamron 100-400 mm f/4.5-6.3 Di VC USD

8 May 2018
Maciej Latałło

7. Coma, astigmatism and bokeh

Like its brand name rivals and the Sigma C 100-400 mm, The Tamron 100-400 mm has no problems connected to coma. Even in the corner of full frame it would be difficult to notice any stronger deformations of images of a diode.

Center, 100 mm, f/4.5 Corner APS-C, 100 mm, f/4.5 Corner FF, 100 mm, f/4.5
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh
Center, 200 mm, f/5.6 Corner APS-C, 200 mm, f/5.6 Corner FF, 200 mm, f/5.6
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh
Center, 300 mm, f/6.3 Corner APS-C, 300 mm, f/6.3 Corner FF, 300 mm, f/6.3
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh
Center, 400 mm, f/6.3 Corner APS-C, 400 mm, f/6.3 Corner FF, 400 mm, f/6.3
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh


Astigmatism, understood as an average difference between horizontal and vertical MTF50 function values amounted to 4.5%. It is a level considered to be low so the performance of the Tamron should be only praised. Still you also have to add the Sigma result, that of 2.6%, was a tad lower.

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Below we present the appearance of defocused circles of light at 200 and 400 mm. Apart from a noticeable rim on the edge of all circles there is nothing worrisome there. Mechanical vignetting is noticeable only at the maximum relative aperture and in the corner of full frame – a very good piece of news. To sum up, for a telephoto zoom lens the out-of-focus areas provided by the Tamron are very pleasing to the eye.

Center, 200 mm, f/5.6 Corner APS-C, 200 mm, f/5.6 Corner FF, 200 mm, f/5.6
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh
Center, 200 mm, f/8.0 Corner APS-C, 200 mm, f/8.0 Corner FF, 200 mm, f/8.0
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh
Center, 200 mm, f/11.0 Corner APS-C, 200 mm, f/11.0 Corner FF, 200 mm, f/11.0
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh

Center, 400 mm, f/6.3 Corner APS-C, 400 mm, f/6.3 Corner FF, 400 mm, f/6.3
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh
Center, 400 mm, f/9.0 Corner APS-C, 400 mm, f/9.0 Corner FF, 400 mm, f/9.0
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh
Center, 400 mm, f/13.0 Corner APS-C, 400 mm, f/13.0 Corner FF, 400 mm, f/13.0
Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh Tamron 100-400 mm f/4.5-6.3 Di VC USD - Coma, astigmatism and bokeh