If you have a SLR or DSLR camera and other maker/mount lenses, the Fotodiox Mount Adapters allow you to use your lenses on the film/digital camera body. Sharing lenses has some distinct advantages. Certain prime lens just can"t be replaced, and you save the cost of purchase on new lenses. Fotodiox offers a range of adapter from large format to smaller format digital adapters. Adapting larger format lens to smaller format sensors (i.e: large format to medium format, medium format to 35mm, 35mm to micro 4/3) provides excellent edge-to-edge sharpness. The smaller image field helps minimize the effects of lens distortion and aberration by using the "sweet spot" or center of the larger lens image circle.This is one of the Pro-series lens mount adapter made with precision and pristine award standard. As all Pro-series adapters, these adapters have been specially crafted to endure professional lenses. No "play" between lens and Camera. With unique styling, the lens mount adapter maintains/enhances professional appearance. This lens mount adapter allows a Sony Alpha / Minolta Maxxum AF Mount to replace the Leica R mount so that you can use Leica R lens on any Sony Alpha / Minolta Maxxum AF Mount Camera. The process takes less than 5 minutes and is easily reversible.This lens mount adapter allows Leica R lens to fit onto all Sony Alpha / Minolta Maxxum AF mount cameras. This is a "do-it-yourself" lens mount replacement; the procedure is simple and easy and only takes about five to ten minutes to perform the swap. You might need to pick-up a small set of screwdrivers if you don"t have any around the house.To replace the Leica R-mount with the Sony Alpha / Minolta Maxxum AF Mount: for the majority of the Leica R lenses the procedure is extremely simple and reversible, and best of all it will not damage your lens. This is the highest quality adaptor you can find worldwide, treat yourself to the best.