Ricoh GXR
![]() Ricoh GXR: body with A12 macro lens and VF-2 viewfinder mounted, and S10 24-72 mm equivalent lens on the side | |
Overview | |
---|---|
Maker | Ricoh |
Type | Interchangeable lens/sensor |
Lens | |
Lens mount | Ricoh GXR lens/sensor |
Sensor/medium | |
Sensor type | Varies (CCD in S10; CMOS in P10, A12 and A16 modules) |
Sensor size | Varies (1/2.3" in P10, 1/1.7" in S10, APS-C in A12 and A16) |
Maximum resolution | Varies (10MP in P10 and S10; 12MP in A12; 16MP in A16) |
Recording medium | SD/SDHC |
Focusing | |
Focus | Automatic |
Shutter | |
Shutter | leaf (A12, A16, P10, S10) or focal plane (GXR Mount) |
Image processing | |
Image processor | Varies (GR ENGINE III or Smooth Imaging Engine IV) |
General | |
LCD screen | 3 inches (7.6 cm); 920,000 pixels |
Battery | Ricoh DB-90 3.6V |
AV Port(s) | HDMI, USB |
Body features | magnesium alloy |
Dimensions | 113.9 by 70.2 by 37.5 millimetres (4.5 in × 2.8 in × 1.5 in) (body only, excluding projections) |
Weight | 160 grams (6 oz) (body only, excluding battery, memory card, strap) |
References | |
"GXR: Specifications". Ricoh Global. 2016. Retrieved 20 June 2016. |
The Ricoh GXR is a compact digital camera first announced by Ricoh Company, Ltd, Tokyo on November 10, 2009.[1] Unlike conventional cameras which either have a fixed lens and sensor or interchangeable lens and a fixed sensor, the GXR takes interchangeable units, each housing a lens, sensor and image processing engine, sometimes called a "lensor" as a portmanteau of lens and sensor.
Following the introduction of the Ricoh GR in 2013, the GXR was quietly discontinued.
Features
[edit]The GXR has a modular design, consisting of two major components: the host body, which holds the battery, pop-up flash, rear screen, and external interfaces for data and flash; and a Camera Unit, which holds the image sensor, lens, and image processor in a sealed module. Ricoh also offered a Lens Mount Unit, which omits the bundled lens in favor of a mechanical interface compatible with many Leica M mount lenses.[2]
The body has a hot shoe on top for an external flash unit; the Ricoh GF-1 is designed for the GXR. Alternatively, Ricoh marketed both optical and electronic viewfinders which attach to the hot shoe. The GV-1 and GV-2 are optical viewfinders featuring the field of view equivalent to a 28 mm lens, and are intended to be used with the A12 28mm unit. The VF-2 electronic viewfinder offers 920,000 pixels and 100% field of view, and can be used with any unit.[3]
Camera and Mount Units
[edit]Officially, Ricoh released five Camera Units and one Lens Mount Unit. Journalist Thom Hogan has coined the "lensor" nickname for the Camera Units.[4] The body accepts one unit at a time; each unit slides onto the body via a stainless steel rail and locks into place. To remove a unit, it can be released by a lever on the camera's body. Both the body and lens unit use magnesium alloy exterior.[5]
Each Camera Unit (lens + sensor) has its own unique specifications relating to its sensor and optics, meaning that different lens units will change the features, behavior and performance of the camera body to varying degrees when attached. By pairing the lens and sensor as a single unit, Ricoh claim that each unit has these features optimised to one another and a specific task, whereas with conventional interchangeable lens cameras, each different lens must use the same sensor and engine. The sealed units also prevent dust from reaching the sensor, which can be a problem with other cameras where the sensor is exposed whilst a lens is being changed. However, a significant disadvantage of this system is the extra cost involved in having to buy a whole new sensor with every new lens.[4]
The Lens Mount Unit was sold with a device used to check mechanical compatibility of lenses; some lenses extend deeply into the body and could cause interference with the sensor.[2][6]
Lensor Feature
|
A12 28mm | A12 50mm | A16 24-85mm | P10 | S10 | GXR Mount (Leica M) | |
---|---|---|---|---|---|---|---|
Unit Name | GR LENS A12 28mm F2.5[10] | GR LENS A12 50mm F2.5 MACRO[11] | RICOH LENS A16 24-85mm F3.5-5.5[12] | RICOH LENS P10 28-300mm F3.5-5.6 VC[13] | RICOH LENS S10 24-72mm F2.5-4.4 VC[14] | GXR MOUNT A12[2] | |
Image Sensor | Resolution (MP) Effective/Total |
4288×2848 12.3/12.9 |
4928×3264 16.2/16.5 |
3648×2736 10.0/10.6 |
3648×2736 10.0/10.4 |
4288×2848 12.3/12.9 | |
Type | CMOS | CMOS | CCD | CMOS | |||
Size | APS-C[a] | 1/2.3" | 1/1.7" | APS-C[a] | |||
Lens | Focal length (35mm equiv.) |
f=18.3mm (28mm) |
f=33mm (50mm) |
f=15.7~55.7mm (24~85mm) |
f=4.9~52.5mm (28~300mm) |
f=5.1~15.3mm (24~72mm)[b] |
varies with lens in use |
Aperture | f/2.5–22 | f/3.5–22 (wide) f/5.5–22 (tele) |
f/3.5–7.0 (wide) f/5.6–15.4 (tele) |
f/2.5–9.1 (wide) f/4.4–15.8 (tele) | |||
Min. Focusing Dist. | 20 cm (7.9 in) | 7 cm (2.8 in) | 25 cm (9.8 in) | 1 cm (0.4 in) (wide) 27 cm (10.6 in) (tele) |
1 cm (0.4 in) (wide) 4 cm (1.6 in) (tele) | ||
Construction (Eles/Grps) | 9E/6G (2 aspherical with 2 surfaces) | 9E/8G (1 asph with 2 surfaces) | 11E/9G (3 asph with 6 surfaces) | 10E/7G (4 asph with 5 surfaces) | 11E/7G (4 asph with 4 surfaces) | ||
Filter Thread | 40.5mm | 55mm | — | 43mm[c] | |||
Shutter speeds (sec.) | 180–1⁄3200 | 30–1⁄2000 | 180–1⁄2000 | 180–1⁄4000[d] | |||
Image stabilization | ![]() |
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Imaging Engine | GR ENGINE III | Smooth Imaging Engine IV | ? | ||||
Dimensions | 68.7 mm × 57.9 mm × 50.4 mm (2.7 in × 2.3 in × 2.0 in) | 68.7 mm × 57.9 mm × 71.3 mm (2.7 in × 2.3 in × 2.8 in) | 71.4 mm × 70.5 mm × 93.3 mm (2.8 in × 2.8 in × 3.7 in) | 68.7 mm × 57.9 mm × 44 mm (2.7 in × 2.3 in × 1.7 in) | 68.7 mm × 57.9 mm × 38.6 mm (2.7 in × 2.3 in × 1.5 in) | 79.1 mm × 60.9 mm × 40.5 mm (3.1 in × 2.4 in × 1.6 in)[e] | |
Weight | 210 g (7.4 oz) | 263 g (9.3 oz) | 350 g (12.3 oz) | 160 g (5.6 oz) | 161 g (5.7 oz) | 170 g (6.0 oz) |
- Notes
See also
[edit]References
[edit]- ^ "Ricoh announces the GXR interchangeable unit camera system" (Press release). Ricoh Company, Ltd. 2009-11-10. Archived from the original on January 24, 2010. Retrieved 2010-03-07.
Tokyo, Japan, November 10, 2009—Ricoh Co., Ltd. (president and CEO: Shiro Kondo) today announced the development and release of the GXR interchangeable unit camera system
- ^ a b c "Lens Mount Unit (Discontinued)". Ricoh Imaging Company, Ltd. Retrieved 3 April 2024.
- ^ "GXR: System diagram". Ricoh Imaging Company, Ltd. 2016. Retrieved 20 June 2016.
- ^ a b Hogan, Thom (July 14, 2022). "Ricoh GXR Camera Review". Sans Mirror. Retrieved 3 April 2024.
Let's discuss that sensor and lens thing a bit. The term I use for the module is lensor. That's because one module contains both a sealed sensor mounted on the back of a lens.
- ^ "GXR: New System Features". Ricoh Imaging Company, Ltd. 2016. Retrieved 20 June 2016.
- ^ Waloszek, Gerd (19 November 2020). "Ricoh GXR: Units - Overview". Retrieved 3 April 2024.
- ^ "What is the difference between GXR A16 24-85mm, A12 28mm, and A12 50mm?". Ricoh Imaging Company, Ltd. 2016. Retrieved 20 June 2016.
- ^ "What is the difference between GXR P10 28-300mm, S10 24-72mm, and A12 50mm?". Ricoh Imaging Company, Ltd. 2016. Retrieved 20 June 2016.
- ^ "GXR: Specifications". Ricoh Imaging Company, Ltd. Retrieved 3 April 2024.
- ^ "Camera Unit 4 (Discontinued)". Ricoh Imaging Company, Ltd. Retrieved 3 April 2024.
- ^ "Camera Unit 1 (Discontinued)". Ricoh Imaging Company, Ltd. Retrieved 3 April 2024.
- ^ "Camera Unit 5 (Discontinued)". Ricoh Imaging Company, Ltd. Retrieved 3 April 2024.
- ^ "Camera Unit 3 (Discontinued)". Ricoh Imaging Company, Ltd. Retrieved 3 April 2024.
- ^ "Camera Unit 2 (Discontinued)". Ricoh Imaging Company, Ltd. Retrieved 3 April 2024.
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External links
[edit]- "Official Website". Ricoh Imaging Company, Ltd. 2016. Archived from the original on 22 June 2016. Retrieved 20 June 2016.
- Waloszek, Gerd (24 February 2016). "Ricoh GXR: Overview". waloszek.de. Retrieved 20 June 2016.
- "Ricoh GXR: The Best Compact Camera". blogspot.com. 2011. Archived from the original on 29 April 2011. Retrieved 20 June 2016. (samples photos)
- "Ricoh 28mm". blogspot.com. 2011. Archived from the original on 4 May 2011. Retrieved 20 June 2016. (review - full size samples)
- "Ricoh GXR [brochure]". Ricoh Company, Ltd.