Ricoh A12 GXR Mount
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- Product Info
Ricoh A12 GXR Mount
- M Mount compatible
- 1/4000 high speed shutter
- 12 megapixels
Universal mount handling Leica M lenses and more
GXR MOUNT A12 is compatible with the M mount, which boasts a long, distinguished history and an extensive range of lenses. Besides being able to mount Leica M lenses, lenses with many more types of mounts can also be accommodated if a mount conversion adapter is used.
Rediscover the appeal of many "gems" of the lens field as well as other "old friends" from your own lens collection. Focusing is done manually. A checking device is included for use in confirming whether or not your lenses can be physically mounted.
There are cases where it may not be possible to mount a lens that the checking device indicated was okay to mount.
Please see here concerning lenses which can be mounted.
Imaging excitement: 12 M pixels with a large 23.6 × 15.7 mm CMOS sensor
The large 23.6 × 15.7 mm CMOS sensor offers beautiful bokeh as well as rich tone gradations. Taking into account the use of lenses such as the symmetrical wide-angle lenses of the film era, this sensor optimizes on-chip micro-lens performance and suppresses peripheral light falloff and color balance changes. There are approximately 12.30 million effective pixels. Based on the design concept of making the best use of the special characteristics of film-era lens, GR MOUNT A12 makes it possible to draw out all of the sharp imaging power of both classic lenses and the CMOS sensor.
Bring classic lenses back to life with functions for peripheral-light and aberration correction
Correction/compensation can be finely tuned to the characteristics of each lens. Not only can you correct for the optical characteristics and quirks of the lens, you can also go the other way and emphasize those characteristics to enjoy creating a distinctive feel not found in the images of today's lenses.
Color shading correction
Color shading correction at the corners can be done in a -4 to +4 range for both R and B.
Peripheral illumination correction
Illumination at the periphery of the image can be corrected in a -3 to +3 range. In addition to correcting for inadequate illumination, you can do the reverse and darken the edges to create a tunnel effect that focuses the viewer's gaze.
Correct for the distortion that tends to occur in the lens periphery. You can select barrel and pincushion distortion and specify "strong," "medium," or "weak" for each.
The monitor display and RAW images are not corrected.
Assist function makes precise manual focusing possible
A focus assist function is included. Outlines and contrast are strengthened to assist the photographer in easy, high-precision manual focusing. It is also possible to magnify the screen image when shooting. As with existing camera units, you can magnify the central part of the image.
In addition, you can now display the magnified central area across the entire screen, making it much easier to focus accurately. The image quality for 4x and 8x magnification has been further enhanced, and the area to be magnified can be moved with the directional pad.
Shutter mode offers both focal plane and electronic shutters
The focal plane shutter has a maximum speed of 1/4000 seconds. In manual exposure mode, bulb and time shooting are possible (up to 180 sec.). With "bulb," the exposure continues while the shutter release button is pressed, and with "time," the shutter release button is pressed to start and end the exposure.
In addition, if you select "electronic shutter" in scene mode, you can use a fast 1/8000-second shutter speed. It is effective for scenes where you want to suppress sound and vibration.
With the electronic shutter, there is an exposure time lag between the top and bottom of the image so it is necessary to be careful about hand-motion blur. The electronic shutter is also not suitable for shooting moving subjects.
Save up to 15 My Settings
My Settings enable you to instantaneously switch a wide variety of shooting functions. From GXR MOUNT A12, it is possible to save six My Settings in the body's My Settings Box and six in the SD/SDHC memory card.
You can enjoy flexible and dynamic shooting by switching My Settings for different lenses as well as different scenes. In addition, if you enter information such as lens name, focal length, and f-aperture in the lens information entry area of My Settings editing, it is possible to record that lens information in the image Exif information.
Even more scene mode options for enjoyment of a diverse range of photo expression
The various options optimized for specific scenes now also include as standard those options provided up to now via function-enhancing firmware updates: miniaturize, high contrast B&W, soft focus, cross process, and toy camera. You can create a unique image by just pressing the shutter release button.
high contrast B&W
- Tech Specs
GXR MOUNT A12 - Major Specifications
Item Specifications Effective pixels Approximately 12.30 million Image sensor 23.6 mm × 15.7 mm CMOS sensor (total pixels: approx. 12.90 million pixels) Zoom Digital zoom: 4.0x (3.6x for movies)
Auto resize zoom: Approx. 5.9x (VGA)
Focus Mode Manual focus Shutter speed Photographs 1/4000 - 180 s, bulb, time (upper and lower limits vary according to shooting and flash modes)
Maximum flash sync shutter speed: 1/180 s
Movies 1/2000 - 1/30 s Exposure control Metering TTL metering in multi (256-segment), center-weighted, and spot metering (TTL metering with auto exposure lock) Mode Aperture priority AE, manual exposure Exposure compensation Manual (+4.0 to -4.0 EV in increments of 1/3 EV or 1/2 EV), auto bracketing (-2 EV to +2 EV in increments of 1/3 EV or 1/2 EV) Exposure range
(auto mode, center-weighted metering)
Using standard lens (F2.5): 1.2 EV to 13.2 EV
(Exposure range for auto ISO calculated using values for ISO 100.)
(standard output sensitivity)
Auto, Auto-Hi, ISO-Lo, ISO 200, ISO 250, ISO 320, ISO 400, ISO 500, ISO 640, ISO 800, ISO 1000, ISO 1250, ISO 1600, ISO 2000, ISO 2500, ISO 3200 White balance Auto / Multi-P AUTO / Outdoors / Cloudy / Incandescent Lamp 1 / Incandescent Lamp 2 / Fluorescent Lamp / Manual Settings / Detail; white balance bracketing Flash Method TTL, manual, external auto (external flash GF-1 function) Flash mode Auto, Anti Red-eye, Flash On, Flash Synchro, Manual, Flash Off Guide number 9.6 (ISO 200 equivalent), 6.8 (ISO 100 equivalent) Illumination angle 24 mm (35 mm film camera equivalent) Firing timing 1st/2nd curtain sync Other External flash GF-1 compatibility Shooting mode Auto / Program Shift / Aperture Priority / Shutter Priority / Manual / Scene (Movie, Portrait, Sports, Landscape, Nightscape, Skew Correction, Miniaturize, High Contrast B&W, Soft Focus, Cross Process, Toy Camera, Electronic Shutter) / My Settings Continuous mode Number of pictures shot
in Continuous (Picture Size: RAW)
Noise Reduction on weak or off: 4 pictures
Noise Reduction on strong: 3 pictures
Noise Reduction on MAX: 3 pictures
Number of pictures shot
in M-Cont Plus (1 set)
HI (1280 × 856): 30 pictures (24 frames/sec.)
LO (4288 × 2848): 15 pictures (2.2 frames/sec.)
Compression ratio*1 FINE, NORMAL, RAW (DNG)*2 Image size (pixels) Photographs 16:9 4288×2416, 3456×1944 4:3 3776×2832, 3072×2304, 2592×1944, 2048×1536, 1280×960, 640×480 3:2 4288×2848, 3456×2304 1:1 2848×2848, 2304×2304 Movies 1280×720, 640×480, 320×240 File size (approx.) RAW 16:9 NORMAL: 17,800 KB/frame, FINE: 19,515 KB/frame, VGA: 15,587 KB/frame 4:3 NORMAL: 18,387 KB/frame, FINE: 20,157 KB/frame, VGA: 16,124 KB/frame 3:2 NORMAL: 20,946 KB/frame, FINE: 22,967 KB/frame, VGA: 18,337 KB/frame 1:1 NORMAL: 13,991 KB/frame, FINE: 15,333 KB/frame, VGA: 12,273 KB/frame L 16:9 NORMAL: 2,222 KB/frame, FINE: 3,816 KB/frame 4:3 NORMAL: 2,315 KB/frame, FINE: 3,960 KB/frame 3:2 NORMAL: 2,615 KB/frame, FINE: 4,493 KB/frame 1:1 NORMAL: 1,761 KB/frame, FINE: 3,009 KB/frame M 16:9 NORMAL: 1,475 KB/frame, FINE: 2,509 KB/frame 4:3 NORMAL: 1,574 KB/frame, FINE: 2,662 KB/frame 3:2 NORMAL: 1,744 KB/frame, FINE: 2,968 KB/frame 1:1 NORMAL: 1,186 KB/frame, FINE: 2,003 KB/frame 5M 4:3 FINE: 2,287 KB/frame 3M 4:3 FINE: 1,474 KB/frame 1M 4:3 FINE: 812 KB/frame VGA 4:3 FINE: 197 KB/frame Battery life Based on CIPA standard DB-90: approx. 330 shots*3 Dimensions (W × H × D) Lens mount unit only: 79.1 mm × 60.9 mm × 40.5 mm
(according to CIPA guidelines)
When mounted on the GXR body: 120.0 mm × 70.2 mm × 45.7 mm
(according to CIPA guidelines)
Flange back: 27.8 mm
Weight (approx.) Lens mount unit only: Approx. 170 g
When mounted on camera body: Approx. 370 g (battery and SD memory card included)
Operating temperature 0 °C to 40 °C Operating humidity 90% or less Storage temperature –20 °C to 60 °C
- *1The compression ratios which can be set vary depending on the image size.
- *2A JPEG file is also recorded (the JPEG file may be a FINE- or NORMAL-quality file with the same dimensions as the RAW file or a VGA file 640 × 480 pixels in size). RAW files use the standard DNG format promoted by Adobe Systems Incorporated.
- *3For reference only; actual number of shots varies greatly according to how camera is used. We recommend that you carry spare batteries when in use for extended periods.
- What's In The Box
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