The lens is very small, lightweight, and a pleasure to work with on the Sony A7RIII. Sharpness is excellent at any aperture I normally use (1.4-5.6), open aperture can be used at long distances. At minimum focus distance and f1.4 aperture it is softer, the very extreme corners of the image are also weaker.Aberration is less visible than on the Sony 50 ZA, but it can be found in photos. The long distance refocus is very fast, AF is not audible. What I notice most is the silence and a kind of stillness (I don't notice the movement of the lenses during focusing at all). The focusing ring has a fairly loose movement. Contrast in the backlight holds up better the GM than the 50 ZA.

ondrejbobek wrote:The lens is very small, lightweight, and a pleasure to work with on the Sony A7RIII. Sharpness is excellent at any aperture I normally use (1.4-5.6), open aperture can be used at long distances. At minimum focus distance and f1.4 aperture it is softer, the very extreme corners of the image are also weaker.Aberration is less visible than on the Sony 50 ZA, but it can be found in photos. The long distance refocus is very fast, AF is not audible. What I notice most is the silence and a kind of stillness (I don't notice the movement of the lenses during focusing at all). The focusing ring has a fairly loose movement. Contrast in the backlight holds up better the GM than the 50 ZA.Thanks much for sharing your experience with this lens. I am very tempted by it, especially for its dedicated aperture ring, but due to your comments, I may stay with my Samyang 50/1.4 ii which is sharp wide open at minimum focus distance and f1.4.