Miguel Quiles tested the EF mount version of my favorite new Sigma lens: The 105mm f/1.4 Bokeh Monster. He adapted in on the Sony but keep in mind the native version should have faster AF.
Below you can find more reviews of the new Sigma FE lenses:
New Sigma FE lenses:
Sigma 14mm f/1.8 for $1,599 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 20mm f/1.4 for $899 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 24mm f/1.4 for $849 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 35mm f/1.4 for $899 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 50mm f/1.4 for $949 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 70mm macro for $569 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 85mm f/1.4 for $1,199 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 105mm f/1.4 for $1,599 at BHphoto, FocusCamera, Amazon and Adorama.
Sigma 135mm f/1.8 for $1,399 at BHphoto, FocusCamera, Amazon and Adorama.
https://www.youtube.com/watch?v=dV6eeG2v_qk
Marc Alhadeff review of the Sigma 85mm F/1.4 DG HSM Art:
If you are in the search of max image quality whatever the size, then this lens can give you amazing results.
If you are more looking for a very good portrait lens for day to day use, then the Sony 85mm F1.8 & Sony 85mm F1.4 GM will be more suited for you
Marc Alhadeff review review of the Sigma 50mm F/1.4 DG HSM Art:
I am much more convinced by the Sigma 50mm F1.4 Art than by the Sigma 85mm F/1.4 DG HSM Art that is a monster to carry
It is a superb optic at a reasonable price vs other 50mm F1.4 and the size and weight are still acceptable for a day to day use even if on the heavy side
Photographyblog tested the 85mm FE:
In summary, the Sigma 85mm F1.4 DG HSM is a great addition to the Sony full-frame family, offering another high-quality 85mm lens option to the range. It is a very large and heavy 85mm lens by mirrorless standards, though, and certainly isn’t going to appeal to those who believe that a mirrorless system should be small and light.