Epson R-D1

Epson R-D1
Type Digital rangefinder camera
Lens Leica M-mount
Sensor 23.7 x 15.6 mm, 1.53 × FOV crop
Maximum resolution 6.1 megapixels
Flash fixed hot shoe
Shutter speed range 1 to 1/2000 s
ASA/ISO range 200-1600
Focus modes Manual
Rear LCD monitor 2 inch
Storage Secure Digital (SD)
Battery Li-Ion EPALB1 Rechargeable
Dimensions 142 x 89 x 40 mm
Weight 560 g (body only, without battery)
Made in Japan

The original R-D1, announced by Epson in March 2004[1] and discontinued in 2007, was the first digital rangefinder camera. It also was the first consumer digital mirrorless interchangeable-lens camera (MILC) camera. Subsequently, three modifications of the original R-D1 were produced - R-D1s, R-D1x, and R-D1xG.


R-D1 was jointly developed by Seiko Epson and Cosina and manufactured by the latter, which also builds the current Voigtländer cameras. It uses Leica M-mount lenses or earlier Leica screw mount lenses with an adapter.

An unusual feature to note on the R-D1 is that it is a digital camera that has a mechanical shutter, despite not being a DSLR. The controls operate in the same way as film-based rangefinder cameras.

Data such as white balance, shutter speed, picture quality, and shots remaining are all displayed with servo driven indicators on a dial like a watch face (made by Epson's parent company Seiko). With the rear screen folded away, it is not obviously a digital camera.

R-D1 and all of the subsequent modifications of the camera have been using the same 1.5x crop factor sensor, interline-transfer CCD (Sony ICX413AQ). The same sensor as used in Pentax *ist D, Nikon D100. Sensor originally dates to 2002.


The successor of R-D1, the R-D1s was released in March 2006. The Epson R-D1s is mechanically identical to the R-D1, but with a firmware upgrade. It adds:

Users of R-D1 could upgrade their camera to have the same functions.


The successors of the R-D1s, the R-D1x and R-D1xG[2][3] were made available from 9 April 2009 in Japan only. They feature very similar feature set except for few modifications:

On 17 March 2014, Epson announced that the R-D1x is discontinued.


  1. Epson launches the world's first rangefinder digital camera, TOKYO, Japan, March 11
  2. R-D1x on the Epson website
  3. "R-D1xG page on Epson web site". Retrieved 2010-09-19.
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