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Leica M Lens Mount Announced for Ricoh

Leica M Lens Mount Announced for Ricoh - Ricoh announce the new GXR Mount A12 with 12.3 megapixel APS-C sensor, allowing the use of Leica M lenses on the Ricoh GXR body.

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Ricoh GXR M Mount A12 in Mirrorless Interchangeable Lens Camera

GXR M Mount A12

Ricoh has announced the new Ricoh GXR A12 Mount supporting lenses compatible with the Leica M lens mount, previously the Ricoh GXR mounts featured a combined sensor and lens unit - read our review of the Ricoh GXR here. It features a 12.3 megapixel APS-C CMOS sensor, 2.2fps shooting, built in distortion correction function options, 720p video recording, and will support other lens mounts with additional adapters. More information is available below, or on Ricoh's website.

From Ricoh: Tokyo, Japan, August 5, 2011—Ricoh Co., Ltd. (president and CEO: Shiro Kondo) today announced the development and planned September 9, 2011 release of the new product GXR MOUNT A12, a lens mount unit exclusively for the GXR interchangeable unit camera system. The body colour will be black only, and the planned monthly production volume is 3,000 units.

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, utilizing its unique ability to accommodate interchangeable units other than camera units, the system can be expanded to include a variety of other devices.

The new GXR MOUNT A12 is a lens mount unit made especially for the GXR. Featuring an APS-C size CMOS sensor and a newly developed 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.

Ricoh GXR M Mount A12 Specifications

Image Sensor
Pixels12.3Mp (Megapixels)
Pixels (W)4288
Pixels (H)2416
Sensor TypeCMOS
Sensor SizeAPS-C
Sensor Size (width)23.6mm
Sensor Size (height)15.7mm
Aspect Ratio
  • 4:3
  • 3:2
  • 16:9
  • 1:1
LCD Monitor
LCD Monitor3in
Screen resolution920k
Touch ScreenNo
Focusing modes
  • Manual
Exposure Control
Shutter speeds shortest1/4000sec
Shutter speeds longest180sec
Bulb modeYes
Exp modes
  • Program
  • Aperture-Priority
  • Shutter-Priority
  • Manual
  • Scene modes
  • Centre-weighted - Average
  • Spot
  • TTL
ISO sensitivity200 - 3200
White balance
  • Auto
  • Manual
  • Bracket
  • Outdoors/Daylight
  • Cloudy
  • Incandescent
  • Fluorescent
Exposure Comp+/-4
Viewfinder ResolutionNo Data
Shooting Options
Continuous shooting2.2fps
Movie modeYes
Video Resolution
  • 1280x720 HD 720p
  • 640x480 VGA
  • 320x240 QVGA
Video FPS30
Stereo SoundNo
Optical Zoom with VideoNo Data
Other Features
Image StabilisationNo
Wi-FiNo Data
Card Type
  • SD
  • SDHC
File Type
  • RAW
  • JPG
  • RAW + JPG
Power Source
Battery TypeLithium Ion
Battery Life (CIPA rating)330shots
Box Contents
Box ContentsNo Data

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Photographs taken using the Ricoh GXR M Mount A12

Stepney - Street CandidSundewWho me?Keep things simplePure LightWeaveLandedStorm damageFallenSculptureGallopWalk in lineA blue coat dayThe Street


I think an adopter to hold old Pentax K lenses manual /auto would be more appropriate. Because a handful people have Leica M lenses, but at least a few million Pentax fan still have screw mount & K mount lenses in the world. So are Nikor lenses.

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Now Ricoh already bought Pentax, pl give a thought.

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