Ricoh XR Rikenon 50mm F/2
Standard prime lens • Film era • Discontinued
- Announced:
- · 1977
- Production status:
- ● Discontinued
- Country of design:
- · Japan
- Original name:
- · RICOH XR RIKENON 1:2 50mm
- Class:
- · Fast full-frame standard prime lens
- System:
- · Ricoh K (1977)
Model history (5)
| ■Ricoh XR Rikenon 50mm F/2 | A | 6 - 5 | 0.45m | ⌀52 | 1977 ● | |
| ■Ricoh XR Rikenon 50mm F/2 L | A | 6 - 5 | 0.60m | ⌀52 | 1980 ● | |
| ■Ricoh XR Rikenon 50mm F/2 S | A | 6 - 5 | 0.60m | ⌀52 | 1981 ● | |
| ■Ricoh Rikenon 50mm F/2 | A | 6 - 5 | 0.60m | ⌀52 | 1982 ● | |
| ■Ricoh Rikenon P 50mm F/2 | A | 6 - 5 | 0.60m | ⌀52 | 1984 ● | |
Specification
| Optical design: | |
| 35mm full frame | |
| 50mm | |
| F/2 | |
| 6 elements in 5 groups (Double Gauss derivative) | |
| Pentax K [45.5mm] | |
| 46.8° (35mm full frame) | |
| On Pentax K APS-C [1.53x] cameras: | |
35mm equivalent focal length: | 76.5mm (in terms of field of view) |
35mm equivalent speed: | F/3.1 (in terms of depth of field) |
Diagonal angle of view: | 31.6° |
| Diaphragm mechanism: | |
Diaphragm type: | Automatic |
Aperture control: | Aperture ring (Manual settings only) |
| 6 (six) | |
| Focusing: | |
| 0.45m | |
| <No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
| Physical characteristics: | |
| 190g | |
| ⌀63×39.5mm | |
| Accessories: | |
| Screw-type 52mm | |
| <No data> | |
| <No data> |
Source of data
- Ricoh XR Rikenon lenses booklet (January 1980).
Manufacturer description
While sharing many of the qualities as the 50mm f/1.7 design, the 50mm f/2 standard lens is even more affordable. The lightest XR Rikenon 50mm standard lens, it weighs a mere 190 grams. Constructed with 6 elements in 5 groups, Ricoh's finest optical standards ensure high resolution and contrast from center to edge, even at maximum aperture. It's a natural choice.
From the editor
A budget standard lens with a metal barrel; newer "L", "S" and non-XR versions have barrels made of engineering plastic. Single-coated, unlike the multi-coated XR RIKENON 50/1.4 and 50/1.7 lenses.
Other standard prime lenses in the Ricoh K system
| ■Pentax K mount (11) | |||||||||
| Ricoh XR Rikenon 45mm F/2.8 • Pancake lens | A | 4 - 3 | 0.60m | ⌀52 | 1994 ● | ||||
| Ricoh XR Rikenon 50mm F/2 L | A | 6 - 5 | 0.60m | ⌀52 | 1980 ● | ||||
| Ricoh XR Rikenon 50mm F/2 S | A | 6 - 5 | 0.60m | ⌀52 | 1981 ● | ||||
| Ricoh Rikenon 50mm F/2 | A | 6 - 5 | 0.60m | ⌀52 | 1982 ● | ||||
| Ricoh XR Rikenon 50mm F/1.7 [I] | A | 6 - 5 | 0.45m | ⌀52 | 1977 ● | ||||
| Ricoh XR Rikenon 50mm F/1.7 [II] | A | 6 - 5 | 0.60m | ⌀52 | 1981 ● | ||||
| Ricoh Rikenon 50mm F/1.7 | A | 6 - 5 | 0.60m | ⌀52 | 1982 ● | ||||
| Ricoh XR Rikenon 50mm F/1.4 | A | 7 - 6 | 0.45m | ⌀52 | 1977 ● | ||||
| Ricoh Riconar 55mm F/2.2 | A | 4 - 4 | 0.80m | ⌀52 | 1978 ● | ||||
| Ricoh XR Rikenon 55mm F/2.2 | A | 4 - 4 | 0.80m | ⌀52 | 1980 ● | ||||
| Ricoh XR Rikenon 55mm F/1.2 | A | 7 - 6 | 0.60m | ⌀58 | ● | ||||
Lenses with similar focal length
| ■Pentax K mount (34) | |||||||||
| Chinon Auto 50mm F/1.9 akaAgfa Color 50mm F/1.9 Coated akaRevuenon Auto 50mm F/1.9 | A | 5 - ? | 0.45m | ⌀49 | ● | ||||
| Chinon Auto 50mm F/1.4 [Multi-Coated] akaAgfa Color 50mm F/1.4 Multi-Coated akaRevuenon Auto 50mm F/1.4 MC | A | 7 - 6 | 0.45m | ⌀49 | 1979 ● | ||||
| Chinon Auto 50mm F/1.7 [Multi-Coated] akaAgfa Color 50mm F/1.7 Multi-Coated akaRevuenon Auto 50mm F/1.7 MC | A | ? - ? | 0.45m | ⌀49 | 1979 ● | ||||
| Cima Kogaku AM Topcor 55mm F/1.7 [MC] akaEdixar 55mm F/1.7 MC akaExaktar 55mm F/1.7 MC | A | 6 - 4 | 0.60m | ⌀52 | 1978 ● | ||||
| Cosina 55mm F/1.2 MC akaRevuenon 55mm F/1.2 MC | A | 7 - 6 | 0.60m | ⌀58 | ● | ||||
| Cosina Cosinon Auto 45mm F/2.8 MC akaAuto Chinon 45mm F/2.8 akaRevuenon Auto 45mm F/2.8 | A | ? - ? | 0.60m | ⌀49 | 1979 ● | ||||
| Cosina Cosinon Auto 55mm F/2.1 akaVivitar Auto 55mm F/2.1 | A | 4 - 4 | 0.60m | ⌀49 | ● | ||||
| Cosina Cosinon-S 50mm F/1.8 akaPetri 50mm F/1.8 | A | 6 - 5 | 0.50m | ⌀49 | 1981 ● | ||||
| Cosina Cosinon-S 50mm F/2 akaCasio 50mm F/2 akaMiranda 50mm F/2 akaPetri 50mm F/2 akaPorst Color Reflex Auto 50mm F/2 MC F akaSoligor 50mm F/2 akaVivitar Auto 50mm F/2 | A | 6 - 5 | 0.50m | ⌀49 | 1979 ● | ||||
| Cosina [Auto] Cosinon-S 50mm F/1.7 MC akaBauer Neovaron 50mm F/1.7 Multicoated akaPetri 50mm F/1.7 MC akaPorst Color Reflex Auto 50mm F/1.7 MC F | A | 6 - 5 | 0.50m | ⌀49 | 1978 ● | ||||
| Cosina [Auto] Cosinon-S 50mm F/1.4 MC akaBauer Neovaron 50mm F/1.4 Multicoated akaPetri 50mm F/1.4 MC akaPorst Color Reflex Auto 50mm F/1.4 MC G akaVivitar Auto 50mm F/1.4 VMC | A | 7 - 6 | 0.50m | ⌀49 | 1978 ● | ||||
| Irix 45mm F/1.4 SLR | A | 11 - 9 | 0.40m | ⌀77 | 2020 ● | ||||
| smc Pentax-M 50mm F/1.7 | A | 6 - 5 | 0.45m | ⌀49 | 1977 ● | ||||
| smc Pentax-A 50mm F/1.2 | A | 7 - 6 | 0.45m | ⌀52 | 1983 ● | ||||
| smc Pentax-A 50mm F/1.4 | A | 7 - 6 | 0.45m | ⌀49 | 1983 ● | ||||
| smc Pentax-A 50mm F/1.7 | A | 6 - 5 | 0.45m | ⌀49 | 1983 ● | ||||
| smc Pentax-A 50mm F/2 | A | 5 - 5 | 0.45m | ⌀49 | 1985 ● | ||||
| smc Pentax-M 50mm F/1.4 | A | 7 - 6 | 0.45m | ⌀49 | 1977 ● | ||||
| smc Pentax-M 50mm F/2 | A | 5 - 5 | 0.45m | ⌀49 | 1979 ● | ||||
| smc Pentax 50mm F/1.2 | A | 7 - 6 | 0.45m | ⌀52 | 1975 ● | ||||
| smc Pentax 50mm F/1.4 | A | 7 - 6 | 0.45m | ⌀52 | 1975 ● | ||||
| smc Pentax 55mm F/1.8 | A | 6 - 5 | 0.45m | ⌀52 | 1975 ● | ||||
| smc Pentax 55mm F/2 | A | 6 - 5 | 0.45m | ⌀52 | 1976 ● | ||||
| Ricoh Rikenon P 55mm F/1.2 | A | 7 - 6 | 0.60m | ⌀58 | ● | ||||
| Ricoh Rikenon P 50mm F/1.4 | A | 7 - 6 | 0.45m | ⌀52 | 1985 ● | ||||
| Ricoh Rikenon P 50mm F/1.7 | A | 6 - 5 | 0.60m | ⌀52 | 1984 ● | ||||
| Ricoh Rikenon P 50mm F/2 | A | 6 - 5 | 0.60m | ⌀52 | 1984 ● | ||||
| Helios-77K-4 50mm F/1.8 [MC] akaГЕЛИОС-77К-4 50mm F/1.8 МС | A | 6 - 4 | 0.45m | ⌀52 | ● | ||||
| Volna 50mm F/1.8 MC akaВОЛНА 50mm F/1.8 МС | A | 6 - ? | 0.45m | ⌀46 | 1980 ● | ||||
| Zenitar 50mm F/2 MC | A | 6 - 4 | 0.35m | ⌀46 | 1995 ● | ||||
| Zenitar-K 50mm F/1.9 MC akaЗЕНИТАР-К 50mm F/1.9 МС | A | 6 - 4 | 0.45m | ⌀52 | 1991 ● | ||||
| Vivitar Series 1 55mm F/1.2 VMC | A | 7 - 6 | 0.60m | ⌀58 | 1984 ● | ||||
| Porst Color Reflex Auto 55mm F/1.2 MC F | A | 6 - 4 | 0.50m | ⌀55 | ● | ||||
| Carl Zeiss Classic Planar T* 50mm F/1.4 ZE / ZF.2 / ZK / ZS | A | 7 - 6 | 0.45m | E58 | 2006 ● | ||||
| ■Interchangeable mount (1) | |||||||||
| MS Optics MS-Mode-S 50mm F/1.3 Dualsystem (200 units) | M | 5 - 4 | 1.00m | ⌀49 | 2006 ● | ||||