|Lens||28 mm equivalent|
|F-numbers||f/2.8 at the widest|
|Sensor size||23.7 x 15.7 mm (APS-C type)|
|Maximum resolution||4928 x 3264 (16 megapixels)|
|Recording medium||SD, SDHC, SDXC|
|Shutter speeds||1/4000 s to 300 s|
|Continuous shooting||4 frames per second|
|Optional viewfinders||Optical viewfinder available as an accessory|
|LCD screen||3 inches with 1,230,000 dots|
|Dimensions||117 x 61 x 34.7 mm (4.61 x 2.4 x 1.38 inches)|
|Weight||245 g including battery|
The Ricoh GR is a digital large sensor compact camera announced by Ricoh on April 17, 2013, one of a number of Ricoh GR digital cameras. It was succeeded by the Ricoh GR II in 2015 and the Ricoh GR III in 2019.
Unlike its predecessors (the "GR Digital" series), the Ricoh GR incorporated an APS-C image sensor, while retaining a relatively compact form factor. Coupled with its retractable lens, the GR is potentially the slimmest of any camera in its class when powered off. Aside from portability, reviewers praised the GR for its lens quality and ergonomics.
An unusual feature of the Ricoh GR was its built-in ND filter. Its maximum shutter speed was variable, depending on the aperture setting (ie, 1/4000s was only available at apertures smaller than f/5.6).
Ricoh GR II
- 802.11/Wi-Fi – to remotely control the camera as well as providing the option to transfer images from the camera to a mobile device or computer
- Maximum shutter speed when shooting at f/2.8 increased by 1/3 EV to 1/2500 s
- Can shoot 10 raw frames at its maximum shooting rate of 4 fps (up from 4 raw frames)
- Can save either individual raw files or a composite raw file when shot in interval mode
- Autofocus during movie shooting
- Option to trigger movie shooting across Wi-Fi, using the browser-based GR Remote app
- Seven additional effect modes for JPEGs
- An extra 'Color Temperature Extension' white balance mode
- The internal flash can be used to remotely operate Pentax AF360 and AF540 flashguns as slaves
- Tap (half-press) the shutter to enter shooting mode if the camera has been turned on by holding the playback button, which previously required a full press
Ricoh GR III
While the GR II was seen as an incremental upgrade, the GR III was the result of a longer development cycle and boasted more significant changes. Ricoh indicated that several key components, including the sensor and the lens, would be upgraded. The body dimensions would decrease slightly, with the built-in flash removed. As July 30th 2020 a new firmware version was released.
- Sensor resolution increased from 16 MP to 24 MP
- Redesigned lens (6 elements, 4 groups) 
- Three-axis sensor-shift image stabilization
- Expanded ISO range of 100 to 102,400 (2 stops higher than the GR II's max of 25,600)
- More compact design (note: on-board flash removed)
- Simulate an anti-aliasing filter (first seen on the Pentax K-3)
- Dust reduction system "using ultrasonic vibrations" (named "DR II")
- Autofocus upgraded to a hybrid system, with phase detection used in combination with contrast detection
- Capacitative touch screen
- Minimum focusing distance improved to 6 cm from 10 cm
- Video recording frame rate improved to 60 fps at 1080p (Full HD)
- USB-C connectivity that can be used to charge the battery
|Model||GR||GR II||GR III||GR IIIx|
|Sensor||16 MP, CMOS, APS-C||24 MP, CMOS, APS-C|
|Lens specification||18.3mm f/2.8
|Shutter speed||300 ~ 1/4000 sec
(1/2000 at f/2.8)
|300 ~ 1/4000 sec
(1/2500 at f/2.8)
|30 ~ 1/4000 sec|
(1/2500 at f/2.8)
|AF type||Contrast Detect||Phase Detect and Contrast Detect|
|Image stabilization||No||Yes, 3-axis|
|Dust reduction system||No||Yes|
|Dimensions||117 x 61 x 35 mm||117 x 63 x 35 mm||109 x 62 x 33 mm||109 x 62 x 35 mm|
|Weight||245 g||251 g||257 g||262 g|
|Announcement date||April 2013||June 2015||September 2018||September 2021|
GR II Accessories
- Butler, Richard (20 June 2013). "Ricoh GR comparative review". DPReview.
- Butler, Richard (17 June 2015). "Ricoh GR II: What's new and what does it mean?". DPReview. Retrieved 18 January 2016.
- Savov, Vlad (28 September 2018). "Ricoh's GRIII camera is just tiny and powerful enough to survive the smartphone age". The Verge. Retrieved 2019-03-19.
- "RICOH GR III firmware update released｜RICOH IMAGING". news.ricoh-imaging.co.jp. Retrieved 18 November 2020.
- "RICOH GR III, a high-end digital compact camera, to be exhibited for a preview at Photokina 2018". Ricoh Imaging Company, Ltd. 2018-09-25.
- "Ricoh GR III: 24MP APS-C, New Lens, 3-Axis IS, Touchscreen". petapixel.com. Retrieved 2019-03-19.
- "Get ready, Ricoh's GRIII is On Its Way". DigitalRev. Retrieved 2019-03-19.
- Cranz, Alex. "Ricoh Finally Updated Its Cult Favorite Compact Camera, and It's a Beauty". Gizmodo. Retrieved 2019-03-19.
- "Ricoh GR III: new high-end pocket compact arrives". Amateur Photographer. 21 February 2019. Retrieved 2019-03-19.
- George 2019-02-21T22:00:18ZReviews, Chris. "Hands on: Ricoh GR III review". digitalcameraworld. Retrieved 2019-03-19.
- Wilson, Mark (21 February 2019). "The Ricoh GR III lands to prove that compact cameras aren't dead yet". Trusted Reviews. Retrieved 2019-03-19.
- "Ricoh GRIII Hands-On: Compact Street-Shooting Camera". Tom's Guide. 21 February 2019. Retrieved 2019-03-19.
- "Ricoh's $899 large-sensor GR III compact will go on sale in March". Engadget. Retrieved 2019-03-19.
- "Accessories". Ricoh Imaging Company, Ltd. Retrieved 2018-09-25.