Name Manufacturer / Model	Mount Bayonet	Type Category	Year Released	Focal mm	Aperture f/	Weight g
RicohRikenon 90-190mm F/5.8	M42	Telephoto	—	90-190mm	f/5.8	—
RicohRikenon P 100mm F/3.5 Macro	PENTAX K	Macro	1996	100mm	f/3.5	240g
RicohRikenon P 105mm F/2.8 Macro	PENTAX K	Macro	1985	105mm	f/2.8	650g
RicohRikenon P 24-40mm F/2.8	PENTAX K	Zoom	1987	24-40mm	f/2.8	—
RicohRikenon P 28-100mm F/4 Macro	PENTAX K	Macro	1983	28-100mm	f/4	—
RicohRikenon P 28-105mm F/3.5-4.5 Macro	PENTAX K	Macro	1992	28-105mm	f/3.5	—
RicohRikenon P 28-105mm F/3.5-4.8 Macro	PENTAX K	Macro	1991	28-105mm	f/3.5	—
RicohRikenon P 28-110mm F/2.8-3.8	PENTAX K	Zoom	—	28-110mm	f/2.8	—
RicohRikenon P 28-135mm F/4-5.4 Macro	PENTAX K	Macro	1987	28-135mm	f/4	—
RicohRikenon P 28-210mm F/3.5-5.6 Macro	PENTAX K	Macro	—	28-210mm	f/3.5	—
RicohRikenon P 28-70mm F/2.8-4	PENTAX K	Zoom	1992	28-70mm	f/2.8	—
RicohRikenon P 28-70mm F/3.5-4.5 Macro	PENTAX K	Macro	—	28-70mm	f/3.5	—
RicohRikenon P 28-70mm F/3.5-4.8	PENTAX K	Zoom	—	28-70mm	f/3.5	—
RicohRikenon P 28-70mm F/3.5-5.6 Macro	PENTAX K	Macro	—	28-70mm	f/3.5	—
RicohRikenon P 28-80mm F/3.5-5.6 Macro	PENTAX K	Macro	—	28-80mm	f/3.5	—
RicohRikenon P 28mm F/2.8	PENTAX K	Wide	1984	28mm	f/2.8	200g
RicohRikenon P 28mm F/2.8 Macro	PENTAX K	Macro	1991	28mm	f/2.8	155g
RicohRikenon P 35-135mm F/3.5-4.5 Macro	PENTAX K	Macro	1988	35-135mm	f/3.5	—
RicohRikenon P 35-200mm F/4-5.6 Macro	PENTAX K	Macro	—	35-200mm	f/4	—
RicohRikenon P 35-70mm F/3.4-4.5 Macro	PENTAX K	Macro	1985	35-70mm	f/3.4	—
RicohRikenon P 35-70mm F/3.5-5.6 Macro	PENTAX K	Macro	—	35-70mm	f/3.5	—
RicohRikenon P 35mm F/2.8	PENTAX K	Wide	1984	35mm	f/2.8	150g
RicohRikenon P 50mm F/1.4	PENTAX K	Portrait	1985	50mm	f/1.4	250g
RicohRikenon P 50mm F/1.7	PENTAX K	Portrait	1984	50mm	f/1.7	153g
RicohRikenon P 50mm F/1.7 Gold	PENTAX K	Portrait	—	50mm	f/1.7	—
RicohRikenon P 50mm F/2	PENTAX K	Portrait	1984	50mm	f/2	135g
RicohRikenon P 55mm F/1.2	PENTAX K	Portrait	—	55mm	f/1.2	—
RicohRikenon P 60-300mm F/4-5.6 Macro	PENTAX K	Macro	1991	60-300mm	f/4	—