Lens mount | flange | Sony NEX FE | Fujifilm X | Canon EOS-M | Canon R | Panasonic S/Leica SL | MFT | Four Thirds | Canon EF-S or Canon EF | Nikon DX or FX |
flange distance | | 18mm | 18mm | 18mm | 20mm | 20mm | 20mm | 38.7mm | 44mm | 46.5mm |
Nikon Z cameras cropped mode | 16mm | Techart, Megadap | not yet | not yet | not yet | not yet | not yet | not yet | via Techart Sony | Nikon FTZ |
Sony NEX cameras | 18mm | native | NO | NO | not yet | not yet | not yet | not yet | Sigma MC-11, Metabones, Fotodiox variable ND, etc | Commlite, Vello, Fotodiox |
Fujifilm X cameras | 18mm | NO | native | NO | not yet | not yet | not yet | not yet | Fotodiox, Viltrox, Fringer | not yet |
Canon EOS-M cameras | 18mm | NO | NO | native | not yet | not yet | not yet | not yet | Canon EF-EOSM; Metabones | not yet |
Canon R cameras cropped mode | 20mm | NO | NO | NO | native | NO | NO | not yet | Canon EF-RF incl. drop-in filter slot | not yet |
Micro Four Thirds cameras | 20mm | NO | NO | NO | NO | NO | native | Olympus MMF-3, Panasonic, Metabones, Viltrox, etc | Metabones, Kipon, Fotodiox incl. focal reducer with AF | Viltrox |
Canon EF-S dSLRs | 44mm | NO | NO | NO | NO | NO | NO | NO | native | not yet |
Nikon DX dSLRs | 46.5mm | NO | NO | NO | NO | NO | NO | NO | NO | native |