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Lens review

Sony FE 24-105 mm f/4 G OSS

11 January 2023
Maciej Lata││o

7. Coma, astigmatism and bokeh

As long as your work is limited to an area of the size of the APS-C detector coma won't be bothersome almost at all no matter what focal length you apply. In case of full frame coma is more visible but still it remains on medium level at most, momentarily decreasing to low. The best situation can be noticed at 105 mm and the worst at 40 mm but even there it would be difficult to complain.

Center, 24ámm, f/4.0 Corner APS-C, 24ámm, f/4.0 Corner FF, 24ámm, f/4.0
Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh
Center, 40ámm, f/4.0 Corner APS-C, 40ámm, f/4.0 Corner FF, 40ámm, f/4.0
Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh
Center, 70ámm, f/4.0 Corner APS-C, 70ámm, f/4.0 Corner FF, 70ámm, f/4.0
Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh
Center, 105ámm, f/4.0 Corner APS-C, 105ámm, f/4.0 Corner FF, 105ámm, f/4.0
Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh


Astigmatism, understood as an average difference between vertical and horizontal MTF50 function values, amounted to 4.8%. It is a very low value. If you look at particular focal lengths you find out that the aberration increases with them. At 24 mm it is 2.4%, at 40 mm it reaches 4.0%, at 70 mm it amounts to 4.2%, and at 105 mm it gets to 8.4%.


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Defocused circles of light look sensibly well, especially if you take into account the fact that you deal here with a zoom lens. Traces of onion ring bokeh are noticeable but only because you can find as many as four aspherical elements inside the lens's construction. A slight rim is also visible on stopping down. Mechanical vignetting makes itself felt but mainly at the maximum relative aperture. By f/5.6 it is already low and by f/8.0 it disappears completely.

Center, 105ámm, f/4.0 Corner APS-C, 105ámm, f/4.0 Corner FF, 105ámm, f/4.0
Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh
Center, 105ámm, f/5.6 Corner APS-C, 105ámm, f/5.6 Corner FF, 105ámm, f/5.6
Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh
Center, 105ámm, f/8.0 Corner APS-C, 105ámm, f/8.0 Corner FF, 105ámm, f/8.0
Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh Sony FE 24-105 mm f/4 G OSS - Coma, astigmatism and bokeh