High-performance lens paired with a large image sensor. The highly unique Ricoh GXR system starts with the body, which contains the system controls, screen, recording media, and power source. Individual camera units attach to the body, with each dust-sealed unit housing its own sensor and processing engine.
(*Body unit sold separately.)
Eliminating the lens mount means that the back focal length can be freely defined for the GXR, enabling the new system to use the most optically efficient lens designs and giving it excellent potential for future expansion.
In GXR camera units, the lens and the image sensor are integrated into a single unit. This structure makes it difficult for dust to get in since it is not necessary to expose the inside of the camera when changing lenses. Even in highly dusty shooting environments, camera units can be changed without hesitation.
The combination of the slide, the resin components, and the pressure-welded springs give an appropriate sliding feel and quietness. In the development, high-stress attachment/removal testing was done to verify the reliability of both mechanical and electrical connections.
GXR is a new camera system that consists of a body and camera units. Each camera unit contains a lens (focal lengths differ between units), an image sensor of optimum type and size for the unit, and an image processing engine. By changing units, the photographer can handle a diverse range of scenes in a way that satisfies sophisticated requirements for photo expression. This all-in-one design for the camera units allows image quality, lens design and low-pass filtering to be optimized to each unit's sensor for maximum image quality.
The GR LENS A12 50 mm lens has a focal length of 50 mm. Part of its appeal is that it gives a natural visual field with an angle of view nearly the same as the human eye. The 50 mm focal length is one of the most basic for candid photography. Compared to a wide-angle lens, a suitable distance is maintained from the subject, and the photographer is able to chat with the subject and elicit natural expressions to capture the person in a candid way without undue attention being paid to the camera. GR LENS A12 50 mm is also a macro lens. The photographer can enjoy close-up photography to a maximum magnification of 1/2x and, from a wide open aperture setting, obtain images with excellent sharpness and high contrast and resolution to the edge.
Even with the focal length unchanged, the larger the image sensor, the richer the bokeh that can be obtained. GR LENS A12 50 mm uses a 23.6 mm × 15.7 mm CMOS sensor, which is capable of making full use of superior GR LENS optical performance. With the low level of color and frame aberrations even near the edge of the image, refined bokeh can be enjoyed with the aperture wide open, and stopping down gives comfortably crisp resolution. In addition, the wide dynamic range and resolving power of the approximately 12.30 million effective pixels enhance the reproducibility of details and delicate tonal nuances. The result is high image quality that is more than adequate for large-format prints.
GR LENS A12 50 mm can shoot HD movies. Image size is 1280×720, aspect ratio 16:9, and frame rate 24 frames/second. Utilizing the high sensitivity (maximum ISO 3200) and the bokeh enabled by the F2.5 aperture and the large image sensor, it is possible to create impressive movies with a different feel than those of standard video cameras. The GXR body has an HDMI connector, and for large-screen viewing of the movies shot, the GXR can be connected to TVs supporting HDMI.
GR LENS A12 50 mm has a lens configuration of 8 groups and 9 elements. As a standard macro lens, there is nothing particularly unusual about this configuration, but making good use of the new system's advantage of not having to accommodate back focal length, we were able to design the refractive capabilities of each element in a more efficient and practical manner. Partly thanks to the use of a large-diameter aspherical element, this lens achieves a superior level of edge-to-edge resolution and image quality unimaginable for its small size. In addition, there is little vignetting so richly luminous, natural-form bokeh extends to the edge. The floating structure corrects various types of aberrations that tend to occur in close-up photography. Even at the minimum shooting distance, this lens gives excellent definition and sharpness worthy of the GR LENS name.
Close-up photography at a maximum magnification of 1/2x is possible. Making good use of this magnification ratio, the photographer can enjoy greater freedom in creative close-up shots, moving back a bit to light the subject so it is not in the camera's shadow. The minimum shooting distance is approximately 7 cm from the front of the lens.
Superior operability particularly when doing close-up photography, the higher the magnification ratio, the narrower the subject depth of field so it can be easier to focus manually (MF) than automatically (AF). GR LENS A12 50 mm has a manual focus ring. When MF is selected as the focus setting, quick and intuitive focusing is possible using the focus ring. In addition, if the focus ring setting selected is AF+MF, after the AF focusing is done it is possible to turn the focus ring to make fine adjustments to the focus.
Type | Interchangeable Modular Camera |
Sensor | Type: CMOS w primary color filter |
Lens | Type/construction: Ricoh GR lens, 9 elements, 8 groups (1 aspheric element) |
Focus System | Type: TTL contrast-detection AF system, AF assist lamp |
Viewfinder | Compatable hotshoe mounted external digital or optical viewfinder (sold separately)Accessory VF-2-- 920,000 dot, 100% field of view |
LCD Monitor | LCD screen type/size: 3” transparent LCD, auto brightness control available |
Flash | Type: Built-in series control auto flash |
External Flash | Type: Hotshoe (P-TTL) |
Storage Media | Internal memory: 86 MB |
Interfaces | Ports: USB 2.0 hi-speed, AV out, HDMI (Mini, Type C) |
Power Supply | Power source: Rechargeable Li-Ion battery DB-90 |
Physical Specs | Body dimensions (W x H x D): 4.5 x 2.8 x 1.5” |
Language Support | English, French, German, Italian, Japanese, Korean, Spanish, Russian, Thai, Simplified/Traditional Chinese |
Metering System | Type: TTL – CCD w/ AE Lock |
ISO Sensitivity | Auto: 200-400 (w/o flash), 200-800 (w flash) |
White Balance | Type: Image sensor detection |
Shutter | Type: Programmed AE mechanical and electronic shutter mechanism |
Capture Modes | Mode selection: Auto, Program Shift (P), Aperture Priority (A), Shutter Priority (S), Manual (M), Scene, My Settings (My1, My2, My3) |
Drive Modes | Mode selection: Single, Continuous (Continuous, M-Cont Hi, M-Cont Lo), Self-Timer (10s, 2s, custom 1-10 shots at 5-10 sec intervals) |
Playback Modes | Mode selection: One Shot (no data, basic data, basic data w bright/dark indication, full data w histogram), Index (20 or 81 thumbnails), Magnification (up to 16X, scrollable, quick magnification), Calendar, Select & Delete, Movie Playback (no data, basic data) |
File Formats | Image size in pixels: |
Computer Requirements | Windows 2000 Professional Service Pack 4 |
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