Name Manufacturer / Model	Mount Bayonet	Type Category	Year Released	Focal mm	Aperture f/	Weight g
KonicaKonishiroku Hexanon Hexar 52mm F/1.8	KONICA AR	Portrait	—	52mm	f/1.8	—
KonishirokuHEXANON 50mm F/2	KONICA F	Portrait	1960	50mm	f/2	185g
KonishirokuHEXANON 52mm F/1.4 [I]	KONICA F	Portrait	1960	52mm	f/1.4	278g
KonishirokuHEXANON 52mm F/1.4 [II]	KONICA F	Portrait	—	52mm	f/1.4	290g
Kowa110mm F/5.6	KOWA SIX	Telephoto	—	110mm	f/5.6	680g
Kowa110mm F/5.6 Macro	KOWA SIX	Macro	1970	110mm	f/5.6	680g
Kowa150mm F/3.5	KOWA SIX	Telephoto	1968	150mm	f/3.5	920g
Kowa150mm F/3.5 [I]	KOWA SIX	Telephoto	1968	150mm	f/3.5	920g
Kowa150mm F/3.5 [II]	KOWA SIX	Telephoto	—	150mm	f/3.5	675g
Kowa19mm F/4.5 Fisheye	KOWA SIX	Fisheye	1970	19mm	f/4.5	2290g
Kowa200mm F/4.5	KOWA SIX	Telephoto	—	200mm	f/4.5	830g
Kowa250mm F/5.6	KOWA SIX	Telephoto	—	250mm	f/5.6	780g
Kowa35mm F/4.5	KOWA SIX	Wide	1970	35mm	f/4.5	720g
Kowa40mm F/4	KOWA SIX	Prime	1970	40mm	f/4	900g
Kowa500mm F/8	KOWA SIX	Telephoto	1970	500mm	f/8	2060g
Kowa55mm F/3.5	KOWA SIX	Prime	1968	55mm	f/3.5	850g
Kowa55mm F/3.5 [I]	KOWA SIX	Prime	1968	55mm	f/3.5	850g
Kowa55mm F/3.5 II	KOWA SIX	Prime	—	55mm	f/3.5	725g
Kowa85mm F/2.8	KOWA SIX	Telephoto	1968	85mm	f/2.8	530g
KuribayashiC.C. Petri Orikkor 135mm F/3.5	M42	Telephoto	1959	135mm	f/3.5	293g
KuribayashiC.C. Petri Orikkor 180mm F/3.5	M42	Telephoto	1959	180mm	f/3.5	610g
KuribayashiC.C. Petri Orikkor 50mm F/2	M42	Portrait	1959	50mm	f/2	—
KuribayashiK.C. Petri Orikkor 105mm F/3.5	M42	Telephoto	1959	105mm	f/3.5	270g
KuribayashiK.C. Petri Orikkor 35mm F/3.5	M42	Wide	1959	35mm	f/3.5	170g
KuribayashiK.C. Petri Orikkor 500mm F/8	M42	Telephoto	1959	500mm	f/8	1300g
KyoeiW. ACALL 35mm F/3.5	T MOUNT	Wide	—	35mm	f/3.5	—
LaiLens50mm F/1.1 M	LEICA M	Portrait	2025	50mm	f/1.1	386g
Laowa17mm F/4 Zero-D Tilt-Shift	CANON RF+ FUJIFILM G, HASSELBLAD XCD, L-MOUNT, NIKON Z, SONY E, SONY FE	Tilt-shift	—	17mm	f/4	810g