In order to use this lens on Sony NEX Cameras (E-mount), Micro 4/3 , & EOS cameras, an additional adapter needs to be purchased. This can be found in our store. Asahi Pentax M42 Takumar lenses are one of the most popular and versatile lenses to adapt with other brand Mirrorless and DSLR cameras. Most adapters can be purchased between $10-$30. Please message me if you have any questions on compatibility with your camera or adapters.