ISCO OPTICAL AV 90MM F/2.8 MC (USED) vintage. . I recently purchased the contents of a camera repair shop from the estate of the deceased owner. I have so much stuff it's overwhelming as I'm not an expert in this field. If I have something listed incorrectly please let me know. I'll answer any questions as best I can. If you need a certain bulb or lamp even a belt or lense for a projector I probably have it. Just send me a message with what you need