Leica M10 vs Ricoh GR III
The Leica M10 (Typ 3656) and the Ricoh GR III are two digital cameras that were officially introduced, respectively, in January 2017 and February 2019. The M10 is a rangefinder-style mirrorless camera, while the GR III is a fixed lens compact. The cameras are based on a full frame (M10) and an APS-C (GR III) sensor. The Leica has a resolution of 23.8 megapixels, whereas the Ricoh provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Leica M10||Ricoh GR III|
|Rangefinder camera||Fixed lens compact camera|
|Leica M mount lenses||28mm f/2.8|
|23.8 MP, Full Frame Sensor||24 MP, APS-C Sensor|
|no Video||1080/60p Video|
|ISO 100-50000||ISO 100-102400|
|Optical viewfinder||Viewfinder optional|
|3.0" LCD, 1037k dots||3.0" LCD, 1037k dots|
|Fixed screen (not touch-sensitive)||Fixed touchscreen|
|5 shutter flaps per second||4 shutter flaps per second|
|No shake reduction||In-body stabilization|
|Weathersealed body||Not weather sealed|
|210 shots per battery charge||200 shots per battery charge|
|139 x 80 x 39 mm, 660 g||109 x 62 x 33 mm, 257 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Leica M10 (Typ 3656) and the Ricoh GR III? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
An illustration of the physical size and weight of the Leica M10 and the Ricoh GR III is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All size dimensions are rounded to the nearest millimeter.
The M10 can be obtained in two different colors (black, silver), while the GR III is only available in black.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Ricoh GR III is considerably smaller (39 percent) than the Leica M10. It is worth mentioning in this context that the M10 is splash and dust resistant, while the GR III does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete and possibly misleading, as the GR III has a lens built in, whereas the M10 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the M10 and their specifications in the Leica M Lens Catalog.
The power pack in the GR III can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. In case you want to display and compare another camera duo, just click on the right or left arrow next to the camera that you would like to inspect. Alternatively, you can also use the CAM-parator to select your camera combination among a larger number of options.
|Leica M10»||5.5 in||3.1 in||1.5 in||23.3 oz||210||Y||Jan 2017||6,595||Leica M10|
|Ricoh GR III«||4.3 in||2.4 in||1.3 in||9.1 oz||200||n||Feb 2019||899||Ricoh GR III|
|Canon G7 X Mark III« »||4.1 in||2.4 in||1.6 in||10.7 oz||235||n||Jul 2019||749||Canon G7 X Mark III|
|Canon 6D Mark II« »||5.7 in||4.4 in||3.0 in||27.0 oz||1200||Y||Jun 2017||1,999||Canon 6D Mark II|
|Canon 1D X Mark II« »||6.2 in||6.6 in||3.3 in||54.0 oz||1210||Y||Feb 2016||5,999||Canon 1D X Mark II|
|Fujifilm XF10« »||4.4 in||2.5 in||1.6 in||9.8 oz||330||n||Jul 2018||499||Fujifilm XF10|
|Leica M-E Typ 240« »||5.5 in||3.1 in||1.7 in||24.0 oz||..||Y||Jun 2019||3,999||Leica M-E Typ 240|
|Leica M10-P« »||5.5 in||3.1 in||1.5 in||23.3 oz||210||Y||Aug 2018||7,995||Leica M10-P|
|Leica M Typ 262« »||5.5 in||3.1 in||1.7 in||24.0 oz||..||Y||Nov 2015||5,195||Leica M Typ 262|
|Leica Q Typ 116« »||5.1 in||3.1 in||3.7 in||22.6 oz||300||n||Jun 2015||4,249||Leica Q Typ 116|
|Leica SL« »||5.8 in||4.1 in||1.5 in||29.9 oz||400||Y||Oct 2015||7,450||Leica SL|
|Leica M Typ 240« »||5.5 in||3.1 in||1.7 in||24.0 oz||..||Y||Sep 2012||6,950||Leica M Typ 240|
|Leica M8« »||5.5 in||3.1 in||1.5 in||20.8 oz||..||n||Sep 2006||5,499||Leica M8|
|Nikon D5« »||6.3 in||6.3 in||3.6 in||49.9 oz||3780||Y||Jan 2016||6,499||Nikon D5|
|Panasonic ZS200« »||4.4 in||2.6 in||1.8 in||12.0 oz||370||n||Feb 2018||799||Panasonic ZS200|
|Ricoh GR II« »||4.6 in||2.5 in||1.4 in||8.9 oz||320||n||Jun 2015||699||Ricoh GR II|
|Ricoh GR« »||4.6 in||2.4 in||1.4 in||8.6 oz||290||n||Apr 2013||799||Ricoh GR|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
Any camera decision will obviously take relative prices into account. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The GR III was launched at a lower price than the M10, despite having a lens built in. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The size of the imaging sensor is a crucial determinant of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.
Of the two cameras under consideration, the Leica M10 features a full frame sensor and the Ricoh GR III an APS-C sensor. The sensor area in the GR III is 57 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.0 and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a smaller sensor, the GR III offers a slightly higher resolution of 24 megapixels, compared with 23.8 MP of the M10. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.91μm versus 6.00μm for the M10). However, it should be noted that the GR III is much more recent (by 2 years and 1 month) than the M10, and its sensor will have benefitted from technological advances during this time that make it possible to gather light more efficiently. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.
The GR III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Leica M10 (Typ 3656) has a native sensitivity range from ISO 100 to ISO 50000. The corresponding ISO settings for the Ricoh GR III are ISO 100 to ISO 102400 (no boost).
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Leica M10||Full Frame||23.8||5952||3992||none||24.4||13.2||2133||86||Leica M10|
|Ricoh GR III||APS-C||24.0||6000||4000||1080/60p||..||..||..||..||Ricoh GR III|
|Canon G7 X Mark III||1-inch||20.0||5472||3648||4K/30p||..||..||..||..||Canon G7 X Mark III|
|Canon 6D Mark II||Full Frame||26.0||6240||4160||1080/60p||24.4||11.9||2862||85||Canon 6D Mark II|
|Canon 1D X Mark II||Full Frame||20.0||5472||3648||4K/60p||24.1||13.5||3207||88||Canon 1D X Mark II|
|Fujifilm XF10||APS-C||24.0||6000||4000||4K/15p||..||..||..||..||Fujifilm XF10|
|Leica M-E Typ 240||Full Frame||23.7||5952||3976||1080/25p||..||..||..||..||Leica M-E Typ 240|
|Leica M10-P||Full Frame||23.8||5952||3992||none||..||..||..||..||Leica M10-P|
|Leica M Typ 262||Full Frame||23.7||5952||3976||none||..||..||..||..||Leica M Typ 262|
|Leica Q Typ 116||Full Frame||24.0||6000||4000||1080/60p||24.3||12.7||2221||85||Leica Q Typ 116|
|Leica SL||Full Frame||24.0||6000||4000||4K/30p||25.0||13.4||1821||88||Leica SL|
|Leica M Typ 240||Full Frame||23.7||5952||3976||1080/25p||24.0||13.3||1860||84||Leica M Typ 240|
|Leica M8||APS-H||10.4||3936||2630||none||21.1||11.3||663||59||Leica M8|
|Nikon D5||Full Frame||20.7||5588||3712||4K/30p||25.1||12.3||2343||88||Nikon D5|
|Panasonic ZS200||1-inch||20.0||5472||3648||4K/30p||..||..||..||..||Panasonic ZS200|
|Ricoh GR II||APS-C||16.1||4928||3264||1080/30p||23.6||13.7||1078||80||Ricoh GR II|
|Ricoh GR||APS-C||16.1||4928||3264||1080/30p||23.6||13.5||972||78||Ricoh GR|
Many modern cameras cannot only take still pictures, but also record videos. The GR III indeed provides for movie recording, while the M10 does not. The highest resolution format that the GR III can use is 1080/60p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the M10 has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the GR III relies on live view and the rear LCD for framing. That said, the GR III can be equipped with an optional viewfinder – the GV-1. The table below summarizes some of the other core capabilities of the Leica M10 and Ricoh GR III in connection with corresponding information for a sample of similar cameras.
|Leica M10||optical||n||3.0||1037||fixed||n||1/4000s||5.0||n||n||Leica M10|
|Ricoh GR III||optional||n||3.0||1037||fixed||Y||1/4000s||4.0||n||Y||Ricoh GR III|
|Canon G7 X Mark III||none||n||3.0||1040||tilting||Y||1/2000s||30||Y||Y||Canon G7 X Mark III|
|Canon 6D Mark II||optical||Y||3.0||1040||swivel||Y||1/4000s||6.5||n||n||Canon 6D Mark II|
|Canon 1D X Mark II||optical||Y||3.2||1620||fixed||Y||1/8000s||16.0||n||n||Canon 1D X Mark II|
|Fujifilm XF10||none||n||3.0||1040||fixed||Y||1/4000s||6.0||Y||n||Fujifilm XF10|
|Leica M-E Typ 240||optical||n||3.0||920||fixed||n||1/4000s||3.0||n||n||Leica M-E Typ 240|
|Leica M10-P||optical||n||3.0||1037||fixed||Y||1/4000s||5.0||n||n||Leica M10-P|
|Leica M Typ 262||optical||n||3.0||921||fixed||n||1/4000s||3.0||n||n||Leica M Typ 262|
|Leica Q Typ 116||3680||n||3.0||1040||fixed||Y||1/2000s||10.0||n||Y||Leica Q Typ 116|
|Leica SL||4400||Y||3.0||1040||fixed||Y||1/8000s||11.0||n||n||Leica SL|
|Leica M Typ 240||optical||n||3.0||920||fixed||n||1/4000s||3.0||n||n||Leica M Typ 240|
|Leica M8||optical||n||2.5||230||fixed||n||1/8000s||2.0||n||n||Leica M8|
|Nikon D5||optical||Y||3.2||2359||fixed||Y||1/8000s||14.0||n||n||Nikon D5|
|Panasonic ZS200||2330||n||3.0||1240||fixed||Y||1/2000s||10.0||Y||Y||Panasonic ZS200|
|Ricoh GR II||optional||n||3.0||1230||fixed||n||1/4000s||4.0||Y||n||Ricoh GR II|
|Ricoh GR||optional||n||3.0||1230||fixed||n||1/4000s||4.0||Y||n||Ricoh GR|
One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The GR III has a touchscreen, while the M10 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.
The Leica M10 and the Ricoh GR III both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
Concerning the storage of imaging data, both the M10 and the GR III write their files to SDXC cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Leica M10 (Typ 3656) and Ricoh GR III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Leica M10||Y||none||none||-||-||none||none||Y||-||-||Leica M10|
|Ricoh GR III||Y||stereo||mono||-||-||none||3.0||Y||-||Y||Ricoh GR III|
|Canon G7 X Mark III||-||stereo||mono||Y||-||micro||3.1||Y||-||Y||Canon G7 X Mark III|
|Canon 6D Mark II||Y||stereo||mono||Y||-||mini||2.0||Y||Y||Y||Canon 6D Mark II|
|Canon 1D X Mark II||Y||mono||mono||Y||Y||mini||3.0||-||-||-||Canon 1D X Mark II|
|Fujifilm XF10||-||stereo||mono||Y||-||micro||2.0||Y||-||Y||Fujifilm XF10|
|Leica M-E Typ 240||Y||mono||none||-||-||none||2.0||-||-||-||Leica M-E Typ 240|
|Leica M10-P||Y||none||none||-||-||none||none||Y||-||-||Leica M10-P|
|Leica M Typ 262||Y||none||none||-||-||none||2.0||-||-||-||Leica M Typ 262|
|Leica Q Typ 116||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Leica Q Typ 116|
|Leica SL||Y||stereo||mono||Y||Y||full||3.0||Y||-||-||Leica SL|
|Leica M Typ 240||Y||stereo||mono||-||-||none||2.0||-||-||-||Leica M Typ 240|
|Leica M8||Y||none||none||-||-||none||2.0||-||-||-||Leica M8|
|Nikon D5||Y||stereo||mono||Y||Y||mini||3.0||-||-||-||Nikon D5|
|Panasonic ZS200||-||stereo||mono||-||-||micro||2.0||Y||-||Y||Panasonic ZS200|
|Ricoh GR II||Y||stereo||mono||-||-||micro||2.0||Y||Y||-||Ricoh GR II|
|Ricoh GR||Y||mono||mono||-||-||micro||2.0||-||-||-||Ricoh GR|
Both the M10 and the GR III are recent models that are part of the current product line-up. The M10 replaced the earlier Leica M Typ 262, while the GR III followed on from the Ricoh GR II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Leica and Ricoh websites.
So what is the bottom line? Which of the two cameras – the Leica M10 or the Ricoh GR III – has the upper hand? Is one clearly better than the other? The listing below highlights the relative strengths of the two models.
Reasons to prefer the Leica M10 (Typ 3656):
- Better image quality: Features bigger pixels on a larger sensor for higher quality imaging.
- Richer colors: The pixel size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger pixels capture a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger pixels means good image quality even under poor lighting.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Faster burst: Shoots at higher frequency (5 vs 4 flaps/sec) to capture the decisive moment.
- More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
- Better sealing: Is weather sealed to enable shooting in dusty or wet environments.
- More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
- More heavily discounted: Has been available for much longer (launched in January 2017).
Advantages of the Ricoh GR III:
- Broader imaging potential: Can capture not only stills but also 1080/60p video.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Ready to shoot: Has an integrated lens, whereas the M10 necessitates an extra lens.
- More compact: Is smaller (109x62mm vs 139x80mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight even though it has a lens built in (unlike the M10).
- Easier travel charging: Can be conveniently charged via its USB port.
- Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- More affordable: Was introduced at a lower price, despite coming with a built-in lens.
- More modern: Reflects 2 years and 1 month of technical progress since the M10 launch.
If the count of individual advantages (bullet points above) is taken as a guide, the match-up finishes in a tie (10 points each). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the M10 or the GR III perform in practice. At times, user reviews, such as those published at amazon, address these issues in a useful manner, but such feedback is on many occasions incomplete, inconsistent, and unreliable.
This is why expert reviews are important. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (cameralabs, dpreview, ephotozine, imaging-resource, and photographyblog). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
The review scores listed above should be treated with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
Other camera comparisons
Did this review help to inform your camera decision process? In case you would like to check on the differences and similarities of other camera models, just make your choice using the following search menu. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.
- Canon 4000D vs Leica M10
- Canon 5D Mark III vs Ricoh GR III
- Canon 5DS vs Leica M10
- Canon 6D vs Ricoh GR III
- Fujifilm GFX 100 vs Leica M10
- Fujifilm X-Pro1 vs Ricoh GR III
- Leica M10 vs Nikon D40
- Leica M10 vs Panasonic G85
- Leica M10 vs Panasonic LX100 II
- Panasonic GF3 vs Ricoh GR III
- Ricoh GR III vs Sony A850
- Ricoh GR III vs Sony RX1R II
Specifications: Leica M10 vs Ricoh GR III
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
|Camera Model||Leica M10||Ricoh GR III|
|Camera Type||Rangefinder camera||Fixed lens compact camera|
|Camera Lens||Leica M mount lenses||28mm f/2.8|
|Launch Date||January 2017||February 2019|
|Launch Price||USD 6595||USD 899|
|Sensor Specs||Leica M10||Ricoh GR III|
|Sensor Format||Full Frame Sensor||APS-C Sensor|
|Sensor Size||35.8 x 23.9 mm||23.5 x 15.6 mm|
|Sensor Area||855.62 mm2||366.6 mm2|
|Sensor Diagonal||43 mm||28.2 mm|
|Sensor Resolution||23.8 Megapixels||24 Megapixels|
|Image Resolution||5952 x 3992 pixels||6000 x 4000 pixels|
|Pixel Pitch||6.00 μm||3.91 μm|
|Pixel Density||2.78 MP/cm2||6.55 MP/cm2|
|Moiré control||no AA filter||no AA filter|
|Movie Capability||no Video||1080/60p Video|
|ISO Setting||100-50000 ISO||100-102400 ISO|
|Image Processor||Maestro II||GR Engine VI|
|DXO Sensor Quality (score)||86||..|
|DXO Color Depth (bits)||24.4||..|
|DXO Dynamic Range (EV)||13.2||..|
|DXO Low Light (ISO)||2133||..|
|Screen Specs||Leica M10||Ricoh GR III|
|Viewfinder Type||Optical viewfinder||Viewfinder optional|
|Viewfinder Field of View||100%|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1037k dots||1037k dots|
|LCD Attachment||Fixed screen||Fixed screen|
|Touch Input||no Touchscreen||Touchscreen|
|Shooting Specs||Leica M10||Ricoh GR III|
|Autofocus System||Contrast-detect AF||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||No Peaking Feature|
|Continuous Shooting||5 shutter flaps/s||4 shutter flaps/s|
|Time-Lapse Photography||Intervalometer built-in||Intervalometer built-in|
|Image Stabilization||No shake reduction||In-body stabilization|
|Fill Flash||no On-Board Flash||no On-Board Flash|
|Storage Medium||SDXC cards||SDXC cards|
|Second Storage Option||Single card slot||Single card slot|
|UHS card support||UHS-I||UHS-I|
|Connectivity Specs||Leica M10||Ricoh GR III|
|USB Connector||USB no||USB 3.0|
|HDMI Port||no HDMI||no HDMI|
|Wifi Support||Wifi built-in||Wifi built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Leica M10||Ricoh GR III|
|Environmental Sealing||Weathersealed body||Not weather sealed|
|Battery Life (CIPA)||210 shots per charge||200 shots per charge|
|In-Camera Charging||no USB charging||USB charging|
139 x 80 x 39 mm
(5.5 x 3.1 x 1.5 in)
109 x 62 x 33 mm
(4.3 x 2.4 x 1.3 in)
|Camera Weight||660 g (23.3 oz)||257 g (9.1 oz)|
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