The FotodioX Lens Mount Adapter allows for the mounting of Pentax K-mount lenses onto certain Canon EOS EF-S-mount cameras. It ensures both infinity focus and manual aperture control, while being compatible with a range of Canon models including the EOS Digital Rebel, XT, XTi, XSi, XS, T1i, T2i, T3i, T4i, T5i, T6i, T6s, T7i, XS, T3, T5, T6, T7, T100, and the EOS 20D/a, 30D, 70D, 77D, 80D, 90D, and 7D-series cameras.
However, it is important to note that this adapter is not suitable for use with Canon full frame EF cameras, such as the Canon EOS 1D series and 5D-series. It is also not compatible with select EF-S-mount cameras, including the 40D, 50D, 60D, and 60Da.
