Sony a7 IV: Firmware v1.01 does not change our decision



Firmware V1.01 for the Sony a7 IV includes the promise that it will improve its accuracy. IAF Features. ‘ Since this is a critique that stuck to our review score, we re-examined the camera to see if the fractional forward-focusing tendency in the AF mode of the eye was resolved.

We have confirmed with Sony that the update was intended to address IAF, although it was activated; Whether by assigning a button to the function or by using ‘Face / I Priority in AF’ automatically. ‘

Examining the camera with multiple subjects and several lenses, we found that the AF function of the eye could still focus the lens instead of the subject pupil. This is something you will only see when shooting at a fairly wide aperture but we still find that we can get better results with manual focus.

We’ve included these results in our review but haven’t found enough improvements to correct our scoring.

Photography with IAF feature.

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

Image shots with manual focus.

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


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