Neewer Black Metal Lens Mount Adapter with Optical Glass for Nikon lens to Minolta MA Mount/Sony Alpha DSLR, fits Sony A100, A200, A350, A700, A900, A230, A330, A380, A850, A35, A55, A65 By using this adapter, you can use Nikon lenses on Minolta MA mount / Sony Alpha DSLR. Aperture-priority works on most cameras, however a preset exposure compensation may be required on some cameras. This adapter is 1:1 adapter, however the magnification of the glass optic on the adapter is not exact 1:1. It is able to perform focus to infinite. Made of metal