Tamron Adaptall 28mm f2.5 with Pentax K mount brand_Chinon Original Pentax reverse adapter kit

Original Pentax reverse adapter kit for the Pentax 645 medium-format camera

There's plenty of room inside for a pro DSLR or mirrorless camera

I'm not sure if it's fair to say that the Nikon 200-400mm f4 ED Nikkor lens bombed when it was originally available

Suitable for film and digital Canon EOS SLR cameras

A well made head at a good price

Tamron Adaptall 28mm f2.5 with Pentax K mount brand_Chinon Original Pentax reverse adapter kitThe Tamron Adaptall 28mm f2. 5 lens is a solid little lens with a pretty quick f2. 5 aperture and good image quality. Minor internal dust, smooth focusing and diaphragm. Adaptall lenses have interchangeable mounts; this one is supplied with a Pentax K M mount.