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Sony a7 IV: firmware v1.01 doesn’t change our conclusions

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Firmware V1.01 for the Sony a7 IV included the promise that it ‘improves the accuracy of the Eye AF feature.’ Since this was one of the criticisms that held back the score of our review, we re-tested the camera to see whether the tendency to fractionally front-focus in eye AF mode has been resolved.

We confirmed with Sony that the update was intended to address Eye AF however it was activated; whether by assigning a button to the function or through its automatic use when ‘Face/Eye Priority in AF’ is turned on.’

Having tested the camera with multiple subjects and a number of lenses, we found the eye AF function still focuses on eyelashes, rather than the subject’s pupil. It’s something you’ll only tend to see when shooting at fairly wide apertures but we still found we could get better results with manual focus.

We have included these findings in our review but cannot find enough of an improvement to revise our scoring.

Image shot with Eye AF feature.

Sony FE 85mm F1.8 | ISO 100 | 1/1000 sec | F1.8

Image shot with manual focus.

Sony FR 85mm F1.8 | ISO 100 | 1/800 sec | F1.8


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