Thank you for viewing. This is a Fujinon C300mm lens. It has an image circle of 380mm, providing ample coverage even on a 4x5 camera. The lens has some dust, but no mold or haze. There are two marks/spots on the surface of the rear lens, but they don't seem to affect the image quality (I tried to wipe them with a cotton swab, but they wouldn't come off). The shutter has some scratches from use. The shutter functions well, and the speeds change correctly. It comes with the ring for the #1 shutter. Thank you.