100% brand new and high quality. This adapter is specially designed for attaching the M42 lens to Canon EOS digital cameras. High quality and compact, super smooth surface finish. Durable, portable and lightweight. Made of aluminum. Support AV / M Modes. Supports automatic measurement function. Allow infinite focus. The aperture scale is adjustable. Manual operation, manual focus, manual exposure. High quality and durable. Size: Compatible with M42 lenses.