Tamron lenses are designed to be compatible with specific camera brands and lens mounts. Currently Di and Di II lenses are compatible with Canon DSLR cameras with the EF and EF-S mounts, and with Nikon DSLR cameras with the F mount (note that these lenses will work with the newer mirrorless Canon RF and Nikon Z mounts with the appropriate lens adapter). Tamron lenses with the designation Di III are compatible with mirrorless cameras from specific camera brands and mounts (Canon EF-M, Fuji X, Olympus and Panasonic Micro Four Thirds, and Sony E mounts).