Nikon 50mm f2 Nikkor-H.C brand_Praktica Don’t try to mount it

Don’t try to mount it to anything else

A 45mm LBD slip in filter is designed for use in front of a light source on a microscope to balance halogen light

The Fujifilm X-E2 is a compact mirrorless digital camera with traditional dial-based controls

a nice lens in good shape

Nikon 50mm f2 Nikkor-H.C brand_Praktica Don’t try to mount itThe Nikon 50 mm f2 Nikkor H. C is a pre AI lens, designed for earlier Nikon cameras like the F F2 Photomic and many Nikkormats. Cosmetic condition is good, with some paint and finish wear; glass is clean, with minor dust. Focusing and diaphragm action are good. Be aware that this is a pre AI lens and that compatibility will vary. Check your camera's instruction manual to be sure it fits.