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Ricoh out 12.3MP 28mm-e F/2.5 module for GXR

Ricoh has unwrapped a new lens and sensor module (confusingly referred to as a "camera unit" in the press release and sales literature) for the GXR camera body. The module comprises of a 12.3-megapixel APS-C size CMOS sensor and matched 28mm-e f/2.5 prime. It will be available in November, but there's no word on pricing.

Ricoh announces GR LENS A12 28 mm F2.5
A new GXR camera unit featuring a GR Lens and an APS-C size CMOS sensor
Exhibited at photokina 2010

Tokyo, Japan, September 21, 2010—Ricoh Co., Ltd. (president and CEO: Shiro Kondo) today announced the development and release of GR LENS A12 28 mm F2.5, the fourth camera unit in the GXR interchangeable unit system. This product is being announced and exhibited at the photokina 2010 exhibition held in Cologne, Germany, beginning September 21, 2010.
Introduced in December 2009, the GXR is a revolutionary new interchangeable unit camera system in which lenses can be changed by mounting camera units that integrate lens, image sensor, and image processing engine into a single unit. In addition, to fully utilize this system's unique ability to accommodate interchangeable units other than camera units, Ricoh is also investigating possibilities for development of a variety of other devices.
The new GR LENS A12 28 mm F2.5 brings together a newly developed 28 mm wide-angle fixed focal length GR Lens, an APS-C size CMOS sensor, and the proven GR Engine III image processing engine to create a unit with high flexibility, high image quality, high-speed shooting ability, and high power of expression.

GR LENS A12 28 mm F2.5 Major Specifications

Effective pixels:
Approximately 12.30 million
Image sensor:
23.6 mm × 15.7 mm MOS sensor (total pixels: approx. 12.90 million pixels)
Focal length: 18.3mm (35 mm camera equivalent: 28 mm)
Aperture (f-number): f/2.5 – f/22 (ND filter used with apertures for exposure control when f/22 is displayed in auto shooting mode)
Focus range: Approx. 20 cm - infinity (from the front of the lens)
Construction: 9 elements in 6 groups (2 aspherical lens elements with 2 surfaces)
Filter diameter: 40.5mm
Digital zoom: 4.0x (3.6x for movies)
Auto resize zoom: Approx. 5.9x (VGA)
Focus Modes:
Contrast AF-based multi and spot AF; MF; Snap; infinity (focus lock and AF-assist)
Shutter speed:
Photographs: 180 - 1/3200s (upper and lower limits vary according to shooting and flash mode)
Movies: 1/30 – 1/2000 s
Exposure control:
Metering: TTL-CCD metering in multi (256-segment), centre-weighted, and spot metering (TTL metering with auto exposure lock)
Mode: Program AE, aperture priority AE, manual exposure, shutter priority AE, move target function
Exposure compensation: Manual (+4.0 to -4.0 EV in increments 1/3 EV or 1/2 EV), auto bracketing (-2 EV to +2 EV in increments 1/3 EV or 1/2 EV)
ISO sensitivity (Standard Output Sensitivity):
Auto, Auto-Hi, ISO 200, ISO 400, ISO 800, ISO 1600, ISO 3200
White balance:
Auto / Multi-P AUTO / Outdoors / Cloudy / Incandescent Lamp 1 / Incandescent Lamp 2 / Fluorescent Lamp / Manual Settings / Detail; white balance Bracketing
Range (built-in flash): Approx. 20 cm – 3.0 m (ISO auto) (from front of lens)
Shooting mode:
Auto / program shift / aperture priority / shutter priority / manual /scene (movie, portrait, sports, landscape, nightscape, skew correction) / “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, or 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 (3 frames/sec.)
Picture quality ※1:
Image size (pixels):
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 24 frames/second:
1280×720, 640×480, 320×240
Battery life:
Based on CIPA standard DB-90: approx. 320 shots CIPA3
Dimensions (W × H × D):
Camera unit only: 68.7 mm × 57.9 mm × 50.4 mm
(according to CIPA guidelines)
When mounted on the GXR body: 113.9 mm × 70.2 mm × 55.6 mm
according to CIPA guidelines
Weight (approx.):
Camera unit only Approx. 210 g
When mounted on camera body: Approx. 410 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
*1    The picture quality modes which can be set vary depending on the image size.
*2    A 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.
*3    For 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.
(Shooting capacity was measured using CIPA-standard parameters. These are only estimates; performance may vary depending on usage conditions.)
More information can be found here.


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