Sony FE 90mm Macro: Slow AF or Defective?

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Jamil Abbasy Senior Member • Posts: 1,339
Sony FE 90mm Macro: Slow AF or Defective?

I just received a new Sony FE 90mm Macro lens and am having problems with the focusing at closer distances in lower right. It constantly hunts back and forth, jitters, and sometimes never achieves focus. It is even having trouble focusing on the text in a book. This was in dim lighting, but the same lighting that I sometimes sit and read.

I compared this to my FE 24-105 in the same lighting and it's instant with no issues. I also compared it to my older lenses, the FE 55mm 1.8 and FE 16-35 2.8, and they had no issues. This was all tested on AF-C tracking on the A7RIV. Here is a video of the problem and the lighting situation where I compared the lenses:

I do know this lens is slower that others, and even slower close up in low light, but AF is basically useless in dimmer lighting situations.

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