Name Manufacturer / Model	Mount Bayonet	Type Category	Year Released	Focal mm	Aperture f/	Weight g
KIPONIBELUX 40mm F/0.85 Mark III	MICRO 4/3	Prime	—	40mm	f/0.85	1200g
KironKino Precision Kiron 105mm F/2.8 MC Macro	CANON FD	Macro	1984	105mm	f/2.8	650g
KironKino Precision Kiron 24mm F/2 MC	CANON FD	Wide	1980	24mm	f/2	288g
KironKino Precision Kiron 28-105mm F/3.2-4.5 MC Macro	CANON FD	Macro	1982	28-105mm	f/3.2	686g
KironKino Precision Kiron 28-210mm F/4-5.6 MC Macro	CANON FD	Macro	1984	28-210mm	f/4	840g
KironKino Precision Kiron 28-85mm F/2.8-3.8 MC Macro	CANON FD	Macro	1980	28-85mm	f/2.8	658g
KironKino Precision Kiron 28mm F/2 MC	CANON FD	Wide	1980	28mm	f/2	284g
KironKino Precision Kiron 28mm F/2.8 MC	CANON FD	Wide	1980	28mm	f/2.8	266g
KironKino Precision Kiron 30-80mm F/3.5-4.5 MC Macro	CANON FD	Macro	1981	30-80mm	f/3.5	520g
KironKino Precision Kiron 70-150mm F/4 MC Macro	CANON FD	Macro	1980	70-150mm	f/4	485g
KironKino Precision Kiron 70-210mm F/4 MC Macro Type 1	CANON FD	Macro	1982	70-210mm	f/4	830g
KironKino Precision Kiron 70-210mm F/4 MC Macro Type 2	CANON FD	Macro	1983	70-210mm	f/4	868g
KironKino Precision Kiron 70-210mm F/4.5 MC Macro	CANON FD	Macro	1985	70-210mm	f/4.5	580g
KironKino Precision Kiron 80-200mm F/4 MC Macro	CANON FD	Macro	1980	80-200mm	f/4	643g
KironKino Precision Kiron 80-200mm F/4.5 MC Macro Type 1	CANON FD	Macro	1982	80-200mm	f/4.5	574g
KironKino Precision Kiron 80-200mm F/4.5 MC Macro Type 2	CANON FD	Macro	1982	80-200mm	f/4.5	624g
KiyoharaKogaku 50mm F/4.5 Soft	T MOUNT	Prime	1987	50mm	f/4.5	125g
KiyoharaKogaku 50mm F/4.5 Soft [VK50R]	T MOUNT	Prime	1987	50mm	f/4.5	125g
KiyoharaKogaku 70mm F/5 Soft	T MOUNT	Prime	1986	70mm	f/5	136g
KiyoharaKogaku 70mm F/5 Soft [VK70R]	T MOUNT	Prime	1986	70mm	f/5	136g
KodakEktar 135mm F/3.5	LARGE FORMAT	Telephoto	1949	135mm	f/3.5	—
KodakEktar 80mm F/2.8	LARGE FORMAT	Prime	1948	80mm	f/2.8	—
Komura-FX 70-210mm F/4.5 K·M·C	CANON FD	Zoom	1980	70-210mm	f/4.5	700g
Komuranon 100mm F/2.5 K·M·C	INTERCHANGEABLE MOUNT	Telephoto	1974	100mm	f/2.5	510g
Komuranon 135mm F/2.5 K·M·C	INTERCHANGEABLE MOUNT	Telephoto	1974	135mm	f/2.5	574g
Komuranon 200mm F/3.5 K·M·C	INTERCHANGEABLE MOUNT	Telephoto	1974	200mm	f/3.5	—
Komuranon 24-35mm F/3.5 K·M·C	INTERCHANGEABLE MOUNT	Wide	1980	24-35mm	f/3.5	467g
Komuranon 24mm F/2.5 K·M·C	INTERCHANGEABLE MOUNT	Wide	1974	24mm	f/2.5	360g