LensTip.com

Lens review

Sigma C 150-600 mm f/5-6.3 DG OS HSM

4 May 2015
Arkadiusz Olech

7. Coma, astigmatism and bokeh

The crops below show that the coma correction of the tested lens is very good. Images of a diode aren’t distorted even in the corners of full frame. The Sigma should be praised for its performance but you should keep in mind the fact that the rival Tamron had practically identical results in this category.

Center, 150 mm, f/5.0 Corner APS-C, 150 mm, f/5.0 Corner FF, 150 mm, f/5.0
Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh
Center, 300 mm, f/5.6 Corner APS-C, 300 mm, f/5.6 Corner FF, 300 mm, f/5.6
Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh
Center, 450 mm, f/6.3 Corner APS-C, 450 mm, f/6.3 Corner FF, 450 mm, f/6.3
Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh
Center, 600 mm, f/6.3 Corner APS-C, 600 mm, f/6.3 Corner FF, 600 mm, f/6.3
Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh


When it comes to the astigmatism, understood as an average difference between horizontal and vertical MTF50 function values, it amounted to 5.2%. It is a level considered by us as slight.


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The Sigma should also be praised for the appearance of defocused light points. The light spread is even, without a trace of onion rings bokeh you saw in the test of the Tamron. You can say the Sigma is a tad better than its direct rival here.

Center, 300 mm, f/5.6 Corner APS-C, 300 mm, f/5.6 Corner FF, 300 mm, f/5.6
Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh
Center, 300 mm, f/8.0 Corner APS-C, 300 mm, f/8.0 Corner FF, 300 mm, f/8.0
Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh
Center, 300 mm, f/11.0 Corner APS-C, 300 mm, f/11.0 Corner FF, 300 mm, f/11.0
Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh Sigma C 150-600 mm f/5-6.3 DG OS HSM - Coma, astigmatism and bokeh