LensTip.com

Lens review

Sony FE 85 mm f/1.4 GM

14 September 2016
Arkadiusz Olech

10. Autofocus

The autofocus mechanism of the Sony FE 1.4/85 GM is silent – you can hear only low whirr of the moving optical system. Still its speed doesn’t impress - running through the whole distance range and finding the focus takes about 0.9-1.0 of a second.

In a well-lit studio the autofocus didn’t cause us any problems; actually you can say it was performing sensationally well. After taking several dozen of photos of our testing chart by f/2.8 we found out the lens hit the target every single time (meaning the difference between the best MTF50 result and the worst one didn’t exceed 5%).

The bigger our surprise was when, during our outdoor session, the lens had to look for the proper focus position in quite strange circumstances. For instance it took several attempts to find a proper focus for the silhouette of my daughter, well-lit by the setting sun.


Please Support Us

The coronavirus crisis has been adversely affecting many businesses and, sad but true, ours is not an exception. Despite that difficult situation we would like to preserve continuity and high quality of publications available on all our websites. Still, we are now aware it might be impossible without additional financial help. That's why we would like to ask all those who visit, read, and care about Optyczne.pl, LensTip.com i Allbinos.com for support - it's enough you send us a small sum of money via PayPal. If a lot people decide to support our websites we think we'll stand a chance and survive next months without any lasting harm. We count on your support and understanding, stay safe and be healthy.

- - - - - - - - - - - - - - - - - advertisement - - - - - - - - - - - - - - - - -

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

The lens didn’t have any clear front or back focus tendencies.

A7R II, f/1.4
Sony FE 85 mm f/1.4 GM - Autofocus