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Sony fe 100mm f 2 8 stf gm oss vs ttartisan af 75mm f 2?

The Sony FE 100mm f/2.8 STF GM OSS is the better pick if you want the smoothest backgrounds and in-body-free stability. Its apodization filter gives very soft out-of-focus areas, though it costs light (T5.6), and it's stabilised. It fits only Sony E-mount cameras. For a close-up look at a person, the portraits guide explains why a longer lens with a bit of distance helps.

The TTArtisan AF 75mm f/2 is brighter, at f/2, and works on Sony E, Fujifilm X, Nikon Z and L-Mount, so it's the more flexible choice if you switch systems. It isn't stabilised, and its shorter 75mm view is a little wider. Check how aperture and depth of field change on your sensor before you decide.

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