Upload & Sell: On
Carsten, thank you. This lens has the best WO resolution of all 50ish 1.4 or faster I have tried (CV, Canon FD Asph, Rokkor 58, Hexanon 57, Pentax 50 and Sigma 50, etc.). What is more appealing is the minimal haze (SA) at WO. CA control at WO is quite good, but certainly with extremely high contrast scene, I can still see tons of PFs (I don't know of any fast 50ish that wouldn't have this). Center is sharpest at f/4, while corner to corner sharpness (mostly because of FC) on APS-C would need f/8, much sharper than the Sigma (not saying much since the Sigma is quite weak when stopping down).
I got it from a collector so everything is mint condition. Mechanically, both the focus ring and the aperture ring are smooth and well-dampened.
Right now, I don't have any portrait with this lens, but hopefully I have some today. For other WO shots, you can check here: