Federal Octar 5.5 inch f6.3 enlarger lens lens mount_Exakta 3 Novar Anastigmat lens in

3 Novar Anastigmat lens in a three-speed Vario shutter

The Minolta MD Rokkor-X 50mm f1

Leitz Or (orange) filter for the 5cm Elmar lens and others with a 39mm filter thread

This is a small brass lens for 3 1/4 x 4 1/4" cameras

The Sony A6000 is a compact interchangeable-lens mirrorless camera with a 24mp DX sensor

Federal Octar 5.5 inch f6.3 enlarger lens lens mount_Exakta 3 Novar Anastigmat lens inThe Federal Octar 5. 5 inch f6. 3 lens is designed for use on an enlarger or bellows. It appears to be a 34mm thread mount. Some wear on aperture dial, dust and minor haze on the optics, diaphragm blades have some fluid and wear that won't impact function.