Adapter ring for Pentax K PK lens Sony E mount NEX-3 NEX-7 NEX-5 NEX-5N DC78 (Electronics)
Product complies to 90%, the lock button is different on the product I received but it is much more sober (probably shorter and aluminum) and gives the impression of being cheap moin than the photo. light product but not too (just near that of PZ 16-
