This lens is often overshadowed by its newer sibling, the Industar 61LD. But this lens definitely has its own very distinct characteristics.
It's just as sharp as the 61LD -- however the added contrast caused by the 61LD's lens makes the image "seem" sharper.
What I like about this lens that it produces very smooth bokehs. It has 10 aperture blades as opposed to the 61LD's 6 blades. It also doesn't hurt that this silver lens looks great on my Sony NEX.Rating: [5 of 5 Stars!]