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Fisheye lenses (1)	E - G	CFD	Weight	Length	Filter	Year
Ricoh XR Rikenon 16mm F/2.8 Fisheye	9 - 8	0.15	300	50.0	--	1982 ●
Ultra-wide angle prime lenses (1)	E - G	CFD	Weight	Length	Filter	Year
Ricoh XR Rikenon 18mm F/2.8	11 - 9	0.25	348	71.0	⌀67	1982 ●
Wide-angle prime lenses (9)	E - G	CFD	Weight	Length	Filter	Year
STATISTICS (click to expand) Shortest focal length, mm: 24 - Ricoh XR Rikenon 24/2.8 Longest focal length, mm: 35 - 3 lenses Fastest speed, F/: 2.8 - 7 lenses Slowest speed, F/: 3.5 - Ricoh XR Rikenon 28/3.5 Aspheric and Ricoh XR Rikenon 28/3.5 Lightest weight, g: 55 - Ricoh XR Rikenon 28/3.5 Aspheric Heaviest weight, g: 240 - Ricoh XR Rikenon 28/2.8 and Ricoh XR Rikenon 35/2.8 [II] Shortest length, mm: 19.5 - Ricoh XR Rikenon 28/3.5 Aspheric Longest length, mm: 42.0 - 4 lenses Shortest closest focusing distance, m: 0.18 - Ricoh XR Rikenon 24/2.8 Longest closest focusing distance, m: 0.35 - 3 lenses
Ricoh XR Rikenon 24mm F/2.8	7 - 7	0.18	210	39.0	⌀52	1982 ●
Ricoh XR Rikenon 28mm F/3.5	6 - 6	0.30	190	38.5	⌀52	1977 ●
Ricoh XR Rikenon 28mm F/3.5 Aspheric	6 - 6	0.35	55	19.5	⌀52	1996 ●
Ricoh XR Rikenon 28mm F/2.8	7 - 7	0.30	240	42.0	⌀52	1980 ●
Ricoh Rikenon P 28mm F/2.8	7 - 7	0.30	200	42.0	⌀52	1984 ●
Ricoh Rikenon P 28mm F/2.8 Macro	5 - 5	0.22	155	38.5	⌀49	1991 ●
Ricoh XR Rikenon 35mm F/2.8 [I]	6 - 6	0.30	190	38.0	⌀52	1977 ●
Ricoh XR Rikenon 35mm F/2.8 [II]	6 - 6	0.35	240	42.0	⌀52	1980 ●
Ricoh Rikenon P 35mm F/2.8	6 - 6	0.35	150	42.0	⌀52	1984 ●
Standard prime lenses (16)	E - G	CFD	Weight	Length	Filter	Year
STATISTICS (click to expand) Shortest focal length, mm: 45 - Ricoh XR Rikenon 45/2.8 Longest focal length, mm: 55 - 4 lenses Fastest speed, F/: 1.2 - Ricoh XR Rikenon 55/1.2 and Ricoh Rikenon P 55/1.2 Slowest speed, F/: 2.8 - Ricoh XR Rikenon 45/2.8 Lightest weight, g: 52 - Ricoh XR Rikenon 45/2.8 Heaviest weight, g: 312 - Ricoh XR Rikenon 55/1.2 Shortest length, mm: 19.0 - Ricoh XR Rikenon 45/2.8 Longest length, mm: 49.0 - Ricoh Riconar 55/2.2 and Ricoh XR Rikenon 55/2.2 Shortest closest focusing distance, m: 0.45 - 4 lenses Longest closest focusing distance, m: 0.80 - Ricoh Riconar 55/2.2 and Ricoh XR Rikenon 55/2.2
Ricoh XR Rikenon 45mm F/2.8	4 - 3	0.60	52	19.0	⌀52	1994 ●
Ricoh XR Rikenon 50mm F/2	6 - 5	0.45	190	39.5	⌀52	1977 ●
Ricoh XR Rikenon 50mm F/2 L	6 - 5	0.60	170		⌀52	1980 ●
Ricoh XR Rikenon 50mm F/2 S	6 - 5	0.60	140	35.0	⌀52	1981 ●
Ricoh Rikenon 50mm F/2	6 - 5	0.60	135	36.0	⌀52	1982 ●
Ricoh Rikenon P 50mm F/2	6 - 5	0.60	135	36.0	⌀52	1984 ●
Ricoh XR Rikenon 50mm F/1.7 [I]	6 - 5	0.45	210	39.5	⌀52	1977 ●
Ricoh XR Rikenon 50mm F/1.7 [II]	6 - 5	0.60	153	30.0	⌀52	1981 ●
Ricoh Rikenon 50mm F/1.7	6 - 5	0.60		30.0	⌀52	1982 ●
Ricoh Rikenon P 50mm F/1.7	6 - 5	0.60	153	30.0	⌀52	1984 ●
Ricoh XR Rikenon 50mm F/1.4	7 - 6	0.45	260	39.5	⌀52	1977 ●
Ricoh Rikenon P 50mm F/1.4	7 - 6	0.45	250	40.0	⌀52	1985 ●
Ricoh Riconar 55mm F/2.2	4 - 4	0.80	140	49.0	⌀52	1978 ●
Ricoh XR Rikenon 55mm F/2.2	4 - 4	0.80	140	49.0	⌀52	1980 ●
Ricoh Rikenon P 55mm F/1.2	7 - 6	0.60		46.0	⌀58	●
Ricoh XR Rikenon 55mm F/1.2	7 - 6	0.60	312	46.0	⌀58	1996 ●
Medium telephoto prime lenses (3)	E - G	CFD	Weight	Length	Filter	Year
STATISTICS (click to expand) Shortest focal length, mm: 135 - Ricoh XR Rikenon 135/2.8 Longest focal length, mm: 200 - Ricoh XR Rikenon 200/4 [II] and Ricoh XR Rikenon 200/4 [I] Fastest speed, F/: 2.8 - Ricoh XR Rikenon 135/2.8 Slowest speed, F/: 4 - Ricoh XR Rikenon 200/4 [II] and Ricoh XR Rikenon 200/4 [I] Lightest weight, g: 405 - Ricoh XR Rikenon 200/4 [I] Heaviest weight, g: 620 - Ricoh XR Rikenon 200/4 [II] Shortest length, mm: 81.0 - Ricoh XR Rikenon 135/2.8 Longest length, mm: 122.0 - Ricoh XR Rikenon 200/4 [II] Shortest closest focusing distance, m: 1.50 - Ricoh XR Rikenon 135/2.8 Longest closest focusing distance, m: 2.50 - Ricoh XR Rikenon 200/4 [II]
Ricoh XR Rikenon 135mm F/2.8	4 - 4	1.50	440	81.0	⌀55	1977 ●
Ricoh XR Rikenon 200mm F/4 [I]	6 - 5	2.00	405	110.7	⌀52	1977 ●
Ricoh XR Rikenon 200mm F/4 [II]	5 - 5	2.50	620	122.0	⌀55	1980 ●
Super telephoto prime lenses (2)	E - G	CFD	Weight	Length	Filter	Year
Ricoh XR Rikenon 300mm F/4.5 APO	8 - 6	2.50	1050	193.0	⌀67	1982 ●
Ricoh XR Rikenon 600mm F/8 Reflex	6 - 6	2.00	751	121.0	⌀86	1982 ●
Macro lenses (2)	E - G	CFD	Weight	Length	Filter	Year
Ricoh Rikenon P 100mm F/3.5 Macro • 1:2	5 - 4	0.43	240	71.5	⌀49	1996 ●
Ricoh Rikenon P 105mm F/2.8 Macro • 1:1	6 - 6	0.35	650	102.5	⌀52	1985 ●
Standard zoom lenses (2)	E - G	CFD	Weight	Length	Filter	Year
Ricoh Rikenon 28-100mm F/4 Macro	16 - 11	1.00	600	96.0	⌀67	●
Ricoh XR Rikenon 35-70mm F/3.5 Macro	7 - 7	0.80	345	70.0	⌀58	1981 ●
Telephoto zoom lenses (3)	E - G	CFD	Weight	Length	Filter	Year
STATISTICS (click to expand) Largest zoom ratio, X: 3 - Ricoh Rikenon 70-210/3.9 Macro Smallest zoom ratio, X: 2.1 - Ricoh XR Rikenon 70-150/3.5 Macro and Ricoh XR Rikenon 70-150/4 Macro Fastest speed, F/: 3.5 - Ricoh XR Rikenon 70-150/3.5 Macro Slowest speed, F/: 4 - Ricoh XR Rikenon 70-150/4 Macro Lightest weight, g: 465 - Ricoh XR Rikenon 70-150/4 Macro Heaviest weight, g: 735 - Ricoh XR Rikenon 70-150/3.5 Macro Shortest length, mm: 112.0 - Ricoh XR Rikenon 70-150/4 Macro Longest length, mm: 148.0 - Ricoh Rikenon 70-210/3.9 Macro Shortest closest focusing distance, m: 1.20 - Ricoh Rikenon 70-210/3.9 Macro Longest closest focusing distance, m: 2.00 - Ricoh XR Rikenon 70-150/3.5 Macro
Ricoh XR Rikenon 70-150mm F/4 Macro	13 - 10	1.50	465	112.0	⌀52	1981 ●
Ricoh XR Rikenon 70-150mm F/3.5 Macro	12 - 9	2.00	735	129.0	⌀58	1977 ●
Ricoh Rikenon 70-210mm F/3.9 Macro • Push/pull	12 - 9	1.20	680	148.0	⌀58	●

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