I have a converted Yashica 45mm 1.7 from a rangefinder professionally converted to sony FE mount.
I took a few sample pics at bestbuy as i do not own an a7 (i've only used this lens on a nex),
the lens is very sharp right from wide open.
The lens is in good condition, with a couple scuff marks on the body, can be seen in the pics provided, focus ring is smooth, there is no fungus, minimal dust inside. Minimum focus distance is 21", the lens reaches infinity without a problem.
$230 shipped, personal/gift paypal add 3% for regular