The Minolta Maxxum body screw adapter is an adapter that allows you to mount any lens with a M42 screw thread mount to a Minolta Maxxum SLR camera body. Screw mount lenses must be used in the stop-down or manual mode and must be focused manually. This precision-made body screw adapter immediately expands the compatibility of your SLR camera to a wide range of lenses at a fraction of the cost.