Ricoh GXR is a modular digital camera of the Japanese company Rico , a distinctive feature of which is the presence of interchangeable modules in the camera containing a lens and a matrix .
| Ricoh GXR Case A12 Macro and P10 Modules viewfinder VP-2 | |
|---|---|
 | |
| Type of | modular digital camera |
| Manufacturer | |
| Years of release | 2010 - present |
| Lens | A-12 module is equipped with interchangeable lenses with Leica M mount |
| Matrix | depending on module |
| Resolution | depending on module |
| Shutter speed range | depending on module |
| Photo flash | built-in; external through a shoe |
| White balance | manual, automatic, preset |
| Viewfinder | through the shoe VF-2 |
| Screen | TFT LCD , 3 inches, approx. 920,000 pixels |
| Shooting a video | 1280 × 720, 24 fps, stereo, .avi, MPEG |
| Storage device | Sdhc |
| Dimensions | 113 × 70 × 56 mm |
| Weight | 410 g (with battery and memory card, but without a removable module) |
| Battery | Li-Ion DB-90 1700 mA / h , up to 320 shots |
Content
Description
The camera consists of a housing (with electronics and battery) and a removable module (lens with a matrix). Modules - a controlled design of the lens and the matrix, in response to the control commands coming from the housing, it is configured and transmits photo or video data. The case, which includes the video processor, transfers the received data from the module to the buffer, after which it decides what to do with it: process it, write it to a flash card or display it on the screen.
The advantages of this configuration include:
- integral connection of the lens and the matrix, which prevents the ingress of foreign objects and moisture;
- A-12 modules are equipped with interchangeable lenses with Leica M mount [1]
- the use of a lens and a matrix that are optimally suitable for each other, which allows the use of a smaller lens for a small matrix, and the use of the optimal resolution of the lens for matrix resolution;
- the use of an optimal lens-matrix pair for a specific situation, for example, for a portrait - a larger matrix (due to the smaller depth of the sharply depicted space ) than for architectural or interior photography ;
- the use of the optimal matrix format for specific genres of photography: APS-C matrices with fixed lenses for specific types of shooting ( EGF 28 mm for nature shots and EGF 50 mm for portrait mode does not require great design complexity), which together gives a fixed focal length with small focal lengths, lenses of acceptable cost and size, and for sequential shooting, small-sized matrices, which allows you to use zoom lenses with a large angular increase, without fear of a significant increase in size and weight, autofocus and burst speed, and cost. [2]
The main disadvantage of such a scheme for the consumer is the rather high cost of the system as a whole, since the fleet of modules (lens-matrix bundles) is smaller than the similar fleet of universal lenses, and also due to the lack of competition (in 2013, no manufacturer introduced models with this type modularity).
The camera has relatively many controls (a total of more than 20 buttons), including: [3]
- circular mode selector M / S / A / P / Auto / MY1 / MY2 / MY3, with a lock against accidental rotation;
- two wheels for adjusting shutter speed and aperture in manual mode;
- eight-way joystick;
- two programmable buttons Fn1 and Fn2.
The folding lens is covered by a 3-blade shutter, when extended, the petals are moved apart. [3]
Plugins
Main technical characteristics of plug-in modules [4] :
| Model date of announcement | Matrix : type and size (mm), resolution M pix ), frame size (pix) | Lens: EGF (mm) aperture design | Photosensitivity data format | Video: resolution @ frame rate | Case: dimensions weight | Picture |
|---|---|---|---|---|---|---|
| A16 24-85 mm 02.02.19 | CMOS APS-C (23.6 × 15.7) 16.2 (4288 × 2768) | 3.5 × (24 - 85) 3.5 - 5.5 11/9 | 200 - 3200 JPEG, RAW (.dng) | MJPEG (.avi) 1280 × 720 @ 24 | ||
| A12 Leica M 08/08/15 | CMOS APS-C (23.6 × 15.7) 12.3 (4288 × 2848) | Interchangeable. Bayonet Leica M | 200 - 3200 JPEG, RAW (.dng) | MJPEG (.avi) 1280 × 720 @ 24 | ||
| A12 50mm Macro | CMOS APS-C (23.6 × 15.7) 12.3 (4288 × 2848) | 50 2,5 9/8 | 200 - 3200 JPEG, RAW (.dng) | MJPEG (.avi) 1280 × 720 @ 24 | ||
| A12 28 mm 2010.02 | CMOS APS-C (23.6 × 15.7) 12.3 (4288 x 2416) | 28 2,5 9/6 | 200 - 3200 JPEG, RAW (.dng) | MJPEG (.avi) 1280 × 720 @ 24 | ||
| S10 2009.11 | CMOS 1 / 1.7 (7.60 × 5.70) 10 (3648 × 2736) | 3 × (24 - 72) 2.5 - 4.4 11/7 | 100 - 3200 JPEG, RAW (.dng) | MJPEG (.avi) 640 × 480 | ||
| P10 2010.02 | CMOS 1 / 2.3 (6.16 × 4.62) 10 (1108 × 831) | 10.7 × (28 - 300) 3.5 - 5.6 10/7 | 100 - 3200 JPEG, RAW | MJPEG (.avi) 1280 × 720 @ 30 |
The A12 28 module in macro mode has a 1: 3 magnification.
Accessories
- LCD viewfinder VF-2;
- hood and adapter HA-3,
- DW-6 wide angle converter ,
- Tele-converter TC-1,
- external flash TTL GF-1,
- self-retaining lens cap LC-2
Photos
| Photographs taken by Ricoh GXR cameras | |||||||||
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Notes
- ↑ Ricoh GXR MOUNT A12: Leica optics in GXR modular cameras Archived November 15, 2016.
- ↑ Sigma SD9, Canon 1Ds impressions and reflections on DSLR. (inaccessible link)
- ↑ 1 2 Camera constructor. Ricoh GXR Review
- ↑ digital camera Ricoh GXR 01/12/2011 ixbt Vladimir Rodionov (inaccessible link)