Ricoh K system

Discontinued

Ricoh XR-1

35mm MF film SLR camera

Announced: Sep 1977
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 139.9x91.3x48mm
Weight: 550g

Ricoh XR-2

35mm MF film SLR camera

Announced: Sep 1977
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 8 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 139.9x91.3x48mm
Weight: 560g

Ricoh XR500

35mm MF film SLR camera

Also known as: Ricoh KR-5
Announced: Sep 1978
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1/8 - 1/500 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 139.9x91.3x48mm
Weight: 540g

Ricoh XR-1S

35mm MF film SLR camera

Announced: Jul 1979
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 139.9x91.3x48mm
Weight: 550g

Ricoh XR-2S

35mm MF film SLR camera

Announced: Jul 1979
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 8 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 139.9x91.3x48mm
Weight: 560g

Ricoh KR-10SE

35mm MF film SLR camera

Announced: 1980
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 8 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 140x91x50mm
Weight: 545g

Ricoh XR5

35mm MF film SLR camera

Also known as: Ricoh KR-5 Super
Ricoh CR-5
Announced: 1980
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1/8 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 139.9x91.3x48mm
Weight: 540g

Ricoh KR-10

35mm MF film SLR camera

Also known as: Ricoh XR-1000S
Ricoh CR-10
Announced: Feb 1980
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 8 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 140x91x50mm
Weight: 545g

Ricoh XR6

35mm MF film SLR camera

Announced: Feb 1981
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 136x86x51mm
Weight: 460g

Ricoh XR-S

35mm MF film SLR camera

Announced: Jul 1981
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 16 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 136x89x51mm
Weight: 475g

Ricoh XR-2000

35mm MF film SLR camera

Also known as: Ricoh KR-10 Super
Announced: 1982
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 16 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 136x86x51mm
Weight: 460g

Ricoh XR7

35mm MF film SLR camera

Announced: Feb 1982
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 16 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 136x86x51mm
Weight: 470g

Ricoh XR500 auto

35mm MF film SLR camera

Announced: Sep 1982
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 136x86x51mm
Weight: 455g

Ricoh XR-F

35mm MF film SLR camera

Announced: 1983
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 1 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 136x88x51mm
Weight: 490g

Ricoh XR-10

35mm MF film SLR camera

Also known as: Ricoh KR-10X
Announced: 1986
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Electronically controlled
Speeds: 16 - 1/1000 + B
Exposure metering: Through-the-lens (TTL)
Exposure modes: Aperture-priority Auto
Manual
Dimensions: 136x86x51mm
Weight: 470g

Ricoh XR-8

35mm MF film SLR camera

Also known as: Ricoh KR-5 Super II
Announced: Jan 1993
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/2000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 133x85x50mm
Weight: 410g

Ricoh XR-8 Super

35mm MF film SLR camera

Also known as: Ricoh KR-5 III
Announced: Jan 1994
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/2000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 139.5x88.5x59mm
Weight: 435g

Ricoh XR Solar

35mm MF film SLR camera

Announced: Apr 1994
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/2000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 136x91x62mm
Weight: 430g

Ricoh KR-5 SV

35mm MF film SLR camera

Announced: 2000
Mount: Pentax K
Format: 36 × 24mm
Shutter type: Focal-plane
Shutter model: Mechanical
Speeds: 1 - 1/2000 + B
Exposure metering: Through-the-lens (TTL)
Dimensions: 139.3x88.4x56.2mm
Weight: 420g

Ricoh's 35mm SLR system based on the original Pentax K mount. The most advanced cameras of the system feature an electronically controlled shutter and aperture-priority auto exposure mode, while conventional models have a mechanical shutter and offer fully manual exposure mode. In order to implement shutter priority and program auto exposure modes, Ricoh had to modify the original mount and release a separate line of cameras and Rikenon P lenses.

Camera lineup

Pentax K mount lens lineup

Lenses found: 38
Fisheye lenses
Ricoh XR Rikenon 16mm F/2.8 Fisheye 1982 
Ultra-wide angle prime lenses
Ricoh XR Rikenon 18mm F/2.8Pro 1982 
Wide-angle prime lenses
Ricoh Rikenon 24mm F/2.8 1982 
Ricoh Rikenon 28mm F/3.5
Ricoh XR Rikenon 28mm F/3.5 AsphericalPancake lens 1996 
Ricoh XR Rikenon 28mm F/2.8
Ricoh Rikenon 28mm F/2.8 1977 
Ricoh Rikenon 28mm F/2.8 1981 
Ricoh Rikenon 28mm F/2.8 1984 
Ricoh Rikenon 28mm F/2.8 1986 
Ricoh Rikenon 28mm F/2.8 1992 
Ricoh XR Rikenon 35mm F/2.8 1977 
Ricoh XR Rikenon 35mm F/2.8 1981 
Standard prime lenses
Ricoh XR Rikenon 45mm F/2.8Pancake lens 1996 
Ricoh XR Rikenon 50mm F/2
Ricoh Rikenon 50mm F/2 1981 
Ricoh XR Rikenon 50mm F/1.7 1977 
Ricoh XR Rikenon 50mm F/1.7 1981 
Ricoh XR Rikenon 50mm F/1.4 1977 
Ricoh XR Rikenon 55mm F/2.2
Ricoh Riconar 55mm F/2.2
Ricoh Rikenon 55mm F/1.7
Ricoh XR Rikenon 55mm F/1.2 1996 
Medium telephoto prime lenses
Ricoh XR Rikenon 135mm F/2.8
Ricoh Rikenon 135mm F/2.8 1978 
Ricoh XR Rikenon 200mm F/4
Ricoh Rikenon 200mm F/4 1978 
Ricoh Rikenon 200mm F/4 1981 
Super telephoto prime lenses
Ricoh Rikenon 300mm F/4.5 APOPro 1982 
Ricoh XR Rikenon Reflex 600mm F/8 1982 
Standard zoom lenses
Ricoh Rikenon 28-100mm F/4 Macro
Ricoh Rikenon 35-70mm F/3.5-4.8 Macro
Ricoh Rikenon 35-70mm F/3.5 Macro 1981 
Telephoto zoom lenses
Ricoh Rikenon 70-150mm F/4 Macro 1981 
Ricoh XR Rikenon 70-150mm F/3.5 Macro
Ricoh Rikenon 70-150mm F/3.5 Macro 1977 
Ricoh Rikenon 70-210mm F/3.9
Superzoom lenses
Ricoh Rikenon 28-200mm F/3.5-5.6 1991 

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