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Lens review

Sony FE 16-35 mm f/2.8 GM II

29 August 2023
Maciej Lata││o

8. Vignetting

First let's see how the Sony FE 16-35 mm f/2.8 GM II deals with vignetting on the smaller APS-C sensor – appropriate thumbnails you can find below.

A7RáIII, APS-C, 16ámm, f/2.8 A7RáIII, APS-C, 16ámm, f/4.0
Sony FE 16-35 mm f/2.8 GM II - Vignetting Sony FE 16-35 mm f/2.8 GM II - Vignetting
A7RáIII, APS-C, 24ámm, f/2.8 A7RáIII, APS-C, 24ámm, f/4.0
Sony FE 16-35 mm f/2.8 GM II - Vignetting Sony FE 16-35 mm f/2.8 GM II - Vignetting
A7RáIII, APS-C, 35ámm, f/2.8 A7RáIII, APS-C, 35ámm, f/4.0
Sony FE 16-35 mm f/2.8 GM II - Vignetting Sony FE 16-35 mm f/2.8 GM II - Vignetting


In this case there are no problems at any focal length. Applying the widest available angle of view and the f/2.8 aperture you have to deal with a loss of just 18% (−0.57 EV) of light in the frame corners. The problem disappears practically completely by f/4.0, where it is just 13% (−0.41 EV). By f/5.6 this value remains the same.


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It's even better in the middle of the focal range because by f/2.8 and f/4.0 we got the following results: 14% (−0.44 EV) and 10% (−0.31 EV) respectively.

At the maximum focal length and maximum relative aperture vignetting is 16% (−0.49 EV) and it decreases to an imperceptible level of 8% (−0.24 EV) on stopping down the aperture to f/4.0.

Now let's check how the tested lens deals on full frame – appropriate photos, as usual, can be found below.

A7RáIII, FF, 16ámm, f/2.8 A7RáIII, FF, 16ámm, f/4.0
Sony FE 16-35 mm f/2.8 GM II - Vignetting Sony FE 16-35 mm f/2.8 GM II - Vignetting
A7RáIII, FF, 24ámm, f/2.8 A7RáIII, FF, 24ámm, f/4.0
Sony FE 16-35 mm f/2.8 GM II - Vignetting Sony FE 16-35 mm f/2.8 GM II - Vignetting
A7RáIII, FF, 35ámm, f/2.8 A7RáIII, FF, 35ámm, f/4.0
Sony FE 16-35 mm f/2.8 GM II - Vignetting Sony FE 16-35 mm f/2.8 GM II - Vignetting


At the most difficult combination of the ultra wide angle of view and f/2.8 aperture problems are huge as vignetting reaches a very high value of 70% (-3.47 EV). It's obvious that a fight for the smallest physical dimensions possible can be very costly. By f/4.0 vignetting decreases to a still high level of 56% (-2.40 EV), and by f/5.6 it reaches a value of 46% (-1.77 EV). Then the decrease is very slow – by f/8.0 you get a result of 40% (-1.50 EV), and by f/11.0 you see a level of 38% (-1.40 EV). Further stopping down doesn't bring any measureable effects.

In the middle of the focal range you see a distinct improvement of the performance. By f/2.8 brightness loss in the frame corners amounts to 41% (-1.54 EV) and it decreases to 36% (-1.30 EV) on stopping down the aperture to f/4.0. By f/5.6 and f/8.0 we got the following values: 31% (-1.07 EV) and 28% (-0.94 EV) respectively.

At the 35 mm focal length the improvement continues, as at the maximum relative aperture vignetting is 36% (-1.27 EV), by f/4.0 it drops to 26% (-0.88 EV), and by f/5.6 it decreases even more, to 22% (-0.73 EV). Further stopping down doesn't bring any measureable decrease of this aberration.

Sony A7RáIII, 16ámm, f/2.8
Sony FE 16-35 mm f/2.8 GM II - Vignetting
Sony A7RáIII, 24ámm, f/2.8
Sony FE 16-35 mm f/2.8 GM II - Vignetting
Sony A7RáIII, 35ámm, f/2.8
Sony FE 16-35 mm f/2.8 GM II - Vignetting