Ultra rare Takumar 300mm f5.6 Quartz Lens

Very rare Ultra-Achromatic Takumar 300mm f5.6 lens mostly made of quartz. Designed for scientific research and forensics, it's used for photographing infrared and UV spectrum. Only around 1700 were made. Comes with all original items and the lens is in exceptional shape. Lens is available if you see this ad.