This Olympus 2x teleconverter is a must-have for any OM film camera. The glass is in pristine condition and perfect working order. Compatible with Olympus film cameras and with a fixed/prime focal length, this teleconverter is compatible with the zuiko glass that is printed on the barrel of the teleconverter. I took pictures all the way around the barrel so the buyer can see if your lens/lenses is/are compatible.  Front and rear OEM caps are included.