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Ricoh announces GXR Mount A12



A GXR lens mount unit featuring a newly adopted APS-C size CMOS sensor

8 August 2011: Ricoh has announced the release of the new GXR MOUNT A12, a lens mount unit exclusively for the GXR interchangeable unit camera system.

Featuring a 12.3 megapixel APS-C size CMOS sensor and a focal plane shutter, this unit makes it possible to mount lenses such as Leica M lenses, and it provides various types of compensation and correction functions.

On sale in Australia from 9 September 2011, local pricing for the GXR MOUNT A12 is yet to be confirmed.

About the Ricoh GXR
Introduced in December 2009, the GXR is a revolutionary 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, utilising its unique ability to accommodate interchangeable units other than camera units, the system can be expanded to include a variety of other devices.

In addition to the MOUNT A12, four interchangeable camera units are currently available:
1.      GR LENS A12 50mm F2.5 MACRO
2.      RICOH LENS S10 24-72mm F2.5-4.4 VC
3.      RICOH LENS P10 28-300 mm F3.5-5.6 VC
4.      GR LENS A12 28mm F2.5

For sales and customer enquiries contact Ricoh’s Australian distributor, Tasco on 02 9938 3244 or visit www.ricohcameras.com.au.

Ricoh Cameras Australia is also on Facebook www.facebook.com/RicohCamerasAus.



< Main features of GXR MOUNT A12 >

1.      The newly adopted APS-C size CMOS sensor expands possibilities for high resolution and imaging power.

          The adoption of a CMOS sensor with an optimised micro lens layout makes it possible to achieve vivid image quality by ensuring sufficient brightness levels even in the peripheral areas of the image.

          The CMOS sensor used is 23.6mm 15.7mm (APS-C size). It enables the shooting of high-quality images with smooth tone gradations as well as high definition and low noise.

2.      Compatibility with a wide variety of lenses, including Leica M mount lenses.

          Compatible with the Leica M mount, GXR MOUNT A12 can, of course, handle M-mount lenses, and if a conversion adapter is used many more types of mounts can also be accommodated.

          A checking device is included for use in confirming whether or not your lenses are physically compatible.

3.      Diverse new functions maximise the potential of the lens itself

          In order to accommodate the photographer’s own preferences by adjusting for the distinctive characteristics of many different lenses, GXR MOUNT A12 can correct colouring at the corners. Colour shading correction is possible in a -4 to +4 range for both R and B.

          Peripheral brightness correction is possible in a -3 to +3 range.

          A distortion correction function is provided to correct for the distortion that tends to occur in the lens periphery. The photographer can select barrel and pin-cushion distortion and specify ‘strong’, ‘medium’ or ‘weak’ for each.

          A glass optical filter was adopted and made as thin as possible. It increases periphery image quality and suppresses field curvature.

4.      High-precision focusing

          A focus-assist function has been included in an effort to raise the accuracy of manual focussing. The photographer can select from two modes and check the focus by strengthening outlines and contrast.

          Magnifying the screen image while shooting is an effective technique for focussing. The magnification can be done not only in the centre but throughout the image. In addition, the image quality for 4x and 8x magnification has been further enhanced. The area to be magnified can be moved using the directional pad.

5.      Two shutter methods are featured: electronic shutter and focal plane shutter

          With the electronic shutter, settings of 1/8000 sec. to 1 sec. are possible, and the photographer can shoot without worrying about shutter noise and vibration.

          With the focal plane shutter, settings of 1/4000 sec. to 180 sec. are possible.

6.      The wide range of functionality that characterises the GXR series

          My Settings enables a wide range of shooting functions to be specified in an instant. For the setting information storage, six patterns can now be stored in the body’s My Settings Box and six patterns can be stored in the SD card. This, along with the ability to change shooting conditions, further expands the photographer’s world of photo expression.

          In manual exposure mode, the shutter speeds B (bulb) and T (time) can be selected. With B, the exposure continues while the shutter release button is pressed, and with T, the shutter release button is pressed to start and end the exposure. For both B and T, the exposure is automatically ended when 180 seconds have elapsed.

          Information on the lens used can be put in the EXIF information. In the editing of My Settings information, lens name, focal length, and F value can be entered.

          New scene mode options have been added for the easy enjoyment of a wide range of photo expression. The five new options are soft focus, cross process, toy camera, miniaturise, and high contrast B&W. The photographer can create a unique image by just pressing the shutter release button.

          An electronic level utilising an acceleration sensor.

          An image flag function to enable the quick display of specific images from among those in the camera. Up to 20 images can be flagged.

          For the exterior, we utilised die cast magnesium, which has a strong track record in the GR series, and we covered the surface with a corrosion-resistant ‘pear-skin’ coating. The end result is a lightweight body offering durability and a superior feel in hand.

          It is possible to shoot 1280 720 pixel HD movies. Note: When shooting movies of 1280720 size, the use of an SD/SDHC memory card with an SD speed class of Class 6 or higher is recommended.

7.      New options added

          We have created the new soft cases SC-75B and SC-75T, which are easy to open and close. With SC-75B, it is possible to shoot with the case attached to the GXR body.


< GR MOUNT A12 options >

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