CRYSTAR FLEX twin-lens reflex camera, featuring a C MASTER lens and a classic leather finish. - Model Name: CRYSTAR FLEX - Lens Type: C MASTER - Exterior Material: Leather finish Thank you for viewing. The shutter and aperture blades function, but due to the age of the item, returns are not accepted. Please understand that this is a junk item and used condition. There is dust, debris, and possible mold inside the lens. The zoom appears to be parallel, but there is dirt on the screen.