Sony FE 35 mm f/1.4 GM
5. Chromatic and spherical aberration
Chromatic aberration
Longitudinal chromatic aberration is not a serious problem of the tested lens even though it hasn't been corrected in a perfect way. We observe a quite interesting performance here: out-of-focus areas positioned far away are more or less free of any colouring but near the depth of field borderlines you can notice some 'colours'. That effect can be reduced on stopping down the aperture by 1 EV but it remains visible. |
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Here the lens fares sensationally well. In the whole range of relative apertures you deal with results of 0.02%, so a level that is completely imperceptible in real life photos, even those viewed using 1:1 reproduction ratio.
| A7R II, RAW, f/1.4 | A7R II, RAW, f/8.0 |
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Spherical aberration
In first photos of this chapter it would be difficult to notice any 'focus shift' symptoms. What's more, images of defocused circles of light, reached before and behind the focus, don't feature any significant differences. These two facts allow us to say the Sony 1.4/35 GM doesn't have any problems related to spherical aberration.
| A7R II, f/1.4, before | A7R II, f/1.4, after |
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