at 70mm goes 1:3 macro
There was bad internal reflection from the tube which holds the rear block,
I padded with a piece of black felt with glue backing, the reflection stopped.
Also found out that the lens is "variforcal", not a true zoom lens, but
my complain is all those letterings are "print", not engraved ones. Yack

This lens is quite likely Cosina's OEM product, it has similar FD 35-70/3.5-4.8
zoom lens, which also has "print" markers, since at early 1990s German did
not developed yet a good zoom lens technology. FD ones are about $50 now.