Bar a mark on the lens barrel there lens is in excellent condition.

Optically clean internally and externally

Focus ring is smooth. 

Manually focussing at f0.95 becomes easier with a little practice. The camera focus conformation is very accurate allowing for shooting  wide open. Can't remember going past f4 with most shots in the f0.95 to f1.4 range.

Fantastic results if you do not mind lugging the weight around.

Feel free to contact me if you any questions about the lens