CHIYODAKOGAKU EXTENSION TUBE for Minolta-SR Minolta SR Extension Ring Set This is an extension ring set for manual Minolta SR cameras from the Chiyoda Kogaku era. You can change the magnification by combining the rings 1, 2, 3, 4, and 5. Even without obtaining a macro lens, you can utilize your existing lenses to enjoy close-up and macro photography. Condition: Although it has never been used, the condition is quite clean. The outer box has scratches and stains from wear. Minolta Extension Tube Macro Photography PUWWPRa+ ++++++++++++++++