You asked
Sony fe 50mm f 2 8 macro vs sigma 70mm f 2 8 dg macro art?
Both are f/2.8 macro lenses with autofocus and no stabilisation, but they suit different shooting distances. The Sony FE 50mm f/2.8 Macro frames as a standard 50mm on full frame, so it doubles as an everyday prime. It only fits Sony E cameras.
The Sigma 70mm f/2.8 DG Macro Art gives you more reach, at 70mm on full frame. That makes it my pick for insects, flowers and anything you can't get close to without scaring it off. It also fits Canon EF and L-Mount as well as Sony E.
If you're on Sony and want one lens for both general shooting and close-ups, go with the Sony 50mm. If close-up subjects are the main reason you're buying, the Sigma is the better tool.
Written by Claude from this site's pages.