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PENTAX K mount
| Name Manufacturer / Model | Mount Bayonet | Type Category | Year Released | Focal mm | Aperture f/ | Weight g |
|---|---|---|---|---|---|---|
| PENTAX K | Zoom | 1979 | 80-200mm | f/4.5 | 555g | |
| PENTAX K | Zoom | 1978 | 80-200mm | f/4.5 | 555g | |
| PENTAX K | Zoom | 1982 | 80-200mm | f/4.5 | 615g | |
| PENTAX K | Mirror | 1982 | 2000mm | f/13.5 | 8000g | |
| PENTAX K | Telephoto | 1980 | 135mm | f/2.5 | 395g | |
PentaxTakumar 135mm F/2.5 | PENTAX K | Telephoto | 1980 | 135mm | f/2.5 | 395g |
| PENTAX K | Telephoto | 1984 | 135mm | f/2.8 | 340g | |
| PENTAX K | Wide | 1984 | 28mm | f/2.8 | 180g | |
| PENTAX K | Zoom | 1984 | 80-200mm | f/4.5 | 615g | |
| PENTAX K | Zoom | 1984 | 80-200mm | f/4.5 | 615g | |
PentaxTakumar-A 28mm F/2.8 | PENTAX K | Wide | 1984 | 28mm | f/2.8 | 180g |
PentaxTakumar-A 70-200mm F/4 | PENTAX K | Zoom | — | 70-200mm | f/4 | — |
| PENTAX K | Zoom | 1984 | 28-80mm | f/3.5 | 456g | |
| PENTAX K | Macro | 1989 | 70-200mm | f/4 | 680g | |
| PENTAX K | Zoom | — | 70-210mm | f/4.5 | 405g | |
| PENTAX K | Zoom | 1988 | 28-80mm | f/3.5 | 408g | |
| PENTAX K | Zoom | 1988 | 35-70mm | f/3.5 | 235g | |
| PENTAX K | Zoom | 1989 | 70-200mm | f/4 | 555g | |
| PENTAX K | Zoom | 1988 | 70-210mm | f/4 | 555g | |
| PENTAX K | Mirror | — | 55mm | f/1.2 | 320g | |
| PENTAX K | Mirror | — | 55mm | f/1.2 | 325g | |
| PENTAX K | Mirror | — | 55mm | f/1.2 | 360g | |
| PENTAX K | Mirror | — | 55mm | f/1.2 | 360g | |
RicohRiconar 55mm F/2.2 | PENTAX K | Prime | 1978 | 55mm | f/2.2 | 140g |
RicohRikenon 100mm F/3.5 | PENTAX K | Telephoto | 1996 | 100mm | f/3.5 | — |
RicohRikenon 135mm F/2.8 | PENTAX K | Telephoto | 1978 | 135mm | f/2.8 | — |
RicohRikenon 200mm F/4 | PENTAX K | Telephoto | 1978 | 200mm | f/4 | — |
| PENTAX K | Macro | — | 28-100mm | f/4 | — |