Leica M10-P vs Sony A7 III
The Leica M10-P and the Sony Alpha A7 III are two enthusiast cameras that were officially introduced, respectively, in August 2018 and February 2018. The M10-P is a fixed lens compact, while the A7 III is a rangefinder-style mirrorless. Both cameras are equipped with a full frame sensor. The Leica has a resolution of 23.8 megapixels, whereas the Sony provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
|Leica M10-P||Sony A7 III|
|Rangefinder camera||Mirrorless system camera|
|Leica M mount lenses||Sony E mount lenses|
|23.8 MP, Full Frame Sensor||24 MP, Full Frame Sensor|
|no Video||4K/30p Video|
|ISO 100-50000||ISO 100-51200 (50-204800)|
|Optical viewfinder||Electronic viewfinder (2359k dots)|
|3.0" LCD, 1037k dots||3.0" LCD, 922k dots|
|Fixed touchscreen||Tilting touchscreen|
|5 shutter flaps per second||10 shutter flaps per second|
|No shake reduction||In-body stabilization|
|Weathersealed body||Weathersealed body|
|210 shots per battery charge||610 shots per battery charge|
|139 x 80 x 39 mm, 660 g||127 x 96 x 74 mm, 650 g|
Going beyond this snapshot of core features and characteristics, what are the differences between the Leica M10-P and the Sony Alpha A7 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-P and the Sony A7 III is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All width, height and depth measures are rounded to the nearest millimeter.
The M10-P can be obtained in two different colors (black, silver), while the A7 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 Sony A7 III is notably larger (10 percent) than the Leica M10-P. However, the A7 III is slightly lighter (2 percent) than the M10-P. In this context, it is worth noting that both cameras are splash and dust-proof and can, hence, be used in inclement weather conditions or harsh environments.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Both cameras have similarly sized sensors, but DSLRs have a larger flange-to-focal plane distance than mirrorless cameras, which imposes contraints on the optical engineering process and generally leads to bigger and heavier lenses. You can compare the optics available for the two cameras in the Leica M Lens Catalog (M10-P) and the Sony FE Lens Catalog (A7 III).
The power pack in the A7 III can be charged via the USB port, which can be very convenient when travelling.
The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. If you would like to visualize and compare a different camera combination, just use the right or left arrows in the table to switch to the respective camera. Alternatively, you can also navigate to the CAM-parator app and make your selection from the full list of cameras there.
|Leica M10-P»||139 mm||80 mm||39 mm||660 g||210||Y||Aug 2018||7,995||Leica M10-P|
|Sony A7 III«||127 mm||96 mm||74 mm||650 g||610||Y||Feb 2018||1,999||Sony A7 III|
|Leica M-E Typ 240« »||139 mm||80 mm||42 mm||680 g||..||Y||Jun 2019||3,999||Leica M-E Typ 240|
|Leica C-LUX« »||113 mm||67 mm||46 mm||340 g||370||n||Jun 2018||1,049||Leica C-LUX|
|Leica CL« »||131 mm||78 mm||45 mm||403 g||220||n||Nov 2017||2,795||Leica CL|
|Leica M10« »||139 mm||80 mm||39 mm||660 g||210||Y||Jan 2017||6,595||Leica M10|
|Leica TL2« »||134 mm||69 mm||33 mm||399 g||250||n||Jul 2017||1,950||Leica TL2|
|Leica M Typ 262« »||139 mm||80 mm||42 mm||680 g||..||Y||Nov 2015||5,195||Leica M Typ 262|
|Leica Q Typ 116« »||130 mm||80 mm||93 mm||640 g||300||n||Jun 2015||4,249||Leica Q Typ 116|
|Leica M Typ 240« »||139 mm||80 mm||42 mm||680 g||..||Y||Sep 2012||6,950||Leica M Typ 240|
|Leica M9« »||139 mm||80 mm||37 mm||585 g||..||n||Sep 2009||7,999||Leica M9|
|Leica M8« »||139 mm||80 mm||37 mm||591 g||..||n||Sep 2006||5,499||Leica M8|
|Nikon Z6« »||134 mm||101 mm||67 mm||675 g||310||Y||Aug 2018||1,999||Nikon Z6|
|Sony A9 II« »||129 mm||96 mm||76 mm||678 g||690||Y||Oct 2019||4,499||Sony A9 II|
|Sony A7R III« »||127 mm||96 mm||74 mm||650 g||650||Y||Oct 2017||3,199||Sony A7R III|
|Sony A9« »||127 mm||96 mm||63 mm||673 g||650||Y||Apr 2017||4,499||Sony A9|
|Sony A7 II« »||127 mm||96 mm||60 mm||599 g||350||Y||Nov 2014||1,999||Sony A7 II|
|Note: Measurements and pricing do not include easily detachable parts, such as interchangeable lenses or optional viewfinders.|
The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The A7 III was launched at a markedly lower price (by 75 percent) than the M10-P, which puts it into a different market segment. 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.
The size of the sensor inside a digital camera is one of the key determinants of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have 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.
Both cameras under consideration feature a full frame sensor, but their sensors differ slightly in size. The sensor area in the A7 III is 1 percent smaller. They nevertheless have the same format factor of 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
Despite having a slightly smaller sensor, the A7 III offers a slightly higher resolution of 24 megapixels, compared with 23.8 MP of the M10-P. 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 5.94μm versus 6.00μm for the M10-P). Moreover, it should be noted that the M10-P is a somewhat more recent model (by 5 months) than the A7 III, and its sensor might have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the M10-P has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The A7 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.
The Leica M10-P has a native sensitivity range from ISO 100 to ISO 50000. The corresponding ISO settings for the Sony Alpha A7 III are ISO 100 to ISO 51200, with the possibility to increase the ISO range to 50-204800.
Since 2007, DXO Mark has published sensor performance measurements that have been derived using a consistent methodology. This service assesses and scores the color depth ("DXO Portrait"), dynamic range ("DXO Landscape"), and low-light sensitivity ("DXO Sports") of camera sensors, and also publishes an overall camera score. The table below summarizes the physical sensor characteristics and sensor quality findings and compares them across a set of similar cameras.
|Leica M10-P||Full Frame||23.8||5952||3992||none||..||..||..||..||Leica M10-P|
|Sony A7 III||Full Frame||24.0||6000||4000||4K/30p||25.0||14.7||3730||96||Sony A7 III|
|Leica M-E Typ 240||Full Frame||23.7||5952||3976||1080/25p||..||..||..||..||Leica M-E Typ 240|
|Leica C-LUX||1-inch||20.0||5472||3648||4K/30p||..||..||..||..||Leica C-LUX|
|Leica CL||APS-C||24.1||6014||4014||4K/30p||..||..||..||..||Leica CL|
|Leica M10||Full Frame||23.8||5952||3992||none||24.4||13.2||2133||86||Leica M10|
|Leica TL2||APS-C||24.1||6014||4014||4K/30p||..||..||..||..||Leica TL2|
|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 M Typ 240||Full Frame||23.7||5952||3976||1080/25p||24.0||13.3||1860||84||Leica M Typ 240|
|Leica M9||Full Frame||18.1||5212||3472||none||22.5||11.7||884||69||Leica M9|
|Leica M8||APS-H||10.4||3936||2630||none||21.1||11.3||663||59||Leica M8|
|Nikon Z6||Full Frame||24.3||6048||4024||4K/30p||25.3||14.3||3299||95||Nikon Z6|
|Sony A9 II||Full Frame||24.0||6000||4000||4K/30p||25.0||14.0||3434||93||Sony A9 II|
|Sony A7R III||Full Frame||42.2||7952||5304||4K/30p||26.0||14.7||3523||100||Sony A7R III|
|Sony A9||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92||Sony A9|
|Sony A7 II||Full Frame||24.0||6000||4000||1080/60p||24.9||13.6||2449||90||Sony A7 II|
Many modern cameras cannot only take still pictures, but also record videos. The A7 III indeed provides for movie recording, while the M10-P does not. The highest resolution format that the A7 III can use is 4K/30p.
Apart from body and sensor, cameras can and do differ across a range of features. For example, the A7 III has an electronic viewfinder (2359k dots), while the M10-P has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The viewfinders of both cameras offer the same field of view (100%), but the viewfinder of the A7 III has a higher magnification than the one of the M10-P (0.78x vs 0.73x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The following table reports on some other key feature differences and similarities of the Leica M10-P, the Sony A7 III, and comparable cameras.
|Leica M10-P||optical||n||3.0||1037||fixed||Y||1/4000s||5.0||n||n||Leica M10-P|
|Sony A7 III||2359||n||3.0||922||tilting||Y||1/8000s||10.0||n||Y||Sony A7 III|
|Leica M-E Typ 240||optical||n||3.0||920||fixed||n||1/4000s||3.0||n||n||Leica M-E Typ 240|
|Leica C-LUX||2330||n||3.0||1240||fixed||Y||1/2000s||10.0||Y||Y||Leica C-LUX|
|Leica CL||2360||Y||3.0||1040||fixed||Y||1/8000s||10.0||n||n||Leica CL|
|Leica M10||optical||n||3.0||1037||fixed||n||1/4000s||5.0||n||n||Leica M10|
|Leica TL2||optional||n||3.7||1230||fixed||Y||1/4000s||7.0||n||n||Leica TL2|
|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 M Typ 240||optical||n||3.0||920||fixed||n||1/4000s||3.0||n||n||Leica M Typ 240|
|Leica M9||optical||n||2.5||230||fixed||n||1/4000s||2.0||n||n||Leica M9|
|Leica M8||optical||n||2.5||230||fixed||n||1/8000s||2.0||n||n||Leica M8|
|Nikon Z6||3690||Y||3.2||2100||tilting||Y||1/8000s||12.0||n||Y||Nikon Z6|
|Sony A9 II||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A9 II|
|Sony A7R III||3686||n||3.0||1440||tilting||Y||1/8000s||10.0||n||Y||Sony A7R III|
|Sony A9||3686||n||3.0||1440||tilting||Y||1/8000s||20.0||n||Y||Sony A9|
|Sony A7 II||2400||n||3.0||1230||tilting||n||1/8000s||5.0||n||Y||Sony A7 II|
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the A7 III is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The Leica M10-P and the Sony A7 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.
The M10-P writes its imaging data to SDXC cards, while the A7 III uses SDXC or Memory Stick PRO Duo cards. The A7 III features dual card slots, which can be very useful in case a memory card fails. In contrast, the M10-P only has one slot. The A7 III supports UHS-II cards (on its first slot), while the M10-P can use UHS-I cards.
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-P and Sony Alpha A7 III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
|Leica M10-P||Y||none||none||-||-||none||none||Y||-||-||Leica M10-P|
|Sony A7 III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7 III|
|Leica M-E Typ 240||Y||mono||none||-||-||none||2.0||-||-||-||Leica M-E Typ 240|
|Leica C-LUX||-||stereo||mono||-||-||micro||2.0||Y||-||-||Leica C-LUX|
|Leica CL||Y||stereo||mono||-||-||none||none||Y||-||-||Leica CL|
|Leica M10||Y||none||none||-||-||none||none||Y||-||-||Leica M10|
|Leica TL2||Y||stereo||mono||-||-||micro||3.0||Y||-||-||Leica TL2|
|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 M Typ 240||Y||stereo||mono||-||-||none||2.0||-||-||-||Leica M Typ 240|
|Leica M9||Y||none||none||-||-||none||2.0||-||-||-||Leica M9|
|Leica M8||Y||none||none||-||-||none||2.0||-||-||-||Leica M8|
|Nikon Z6||Y||stereo||mono||Y||Y||micro||3.1||Y||-||Y||Nikon Z6|
|Sony A9 II||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A9 II|
|Sony A7R III||Y||stereo||mono||Y||Y||micro||3.1||Y||Y||Y||Sony A7R III|
|Sony A9||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||Y||Sony A9|
|Sony A7 II||Y||stereo||mono||Y||Y||micro||2.0||Y||Y||-||Sony A7 II|
Both the M10-P and the A7 III are recent models that are part of the current product line-up. The A7 III replaced the earlier Sony A7 II, while the M10-P followed on from the Leica M9-P. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official Leica and Sony websites.
So what is the bottom line? Is there a clear favorite between the Leica M10-P and the Sony A7 III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.
Reasons to prefer the Leica M10-P:
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More detailed LCD: Has a higher resolution rear screen (1037k vs 922k dots).
- More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
- More modern: Is somewhat more recent (announced 5 months after the A7 III).
Arguments in favor of the Sony Alpha A7 III:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
- More framing info: Has an electronic viewfinder that displays shooting data.
- Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.73x).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Longer lasting: Gets more shots (610 versus 210) out of a single battery charge.
- 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 device pairing: Supports NFC for fast wireless image transfer over short distances.
- Easier wireless transfer: Supports Bluetooth for image sharing without cables.
- Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
- Faster buffer clearing: Supports a more advanced SD data transfer standard (UHS-II vs UHS-I).
- More affordable: Was introduced into a lower priced category (75 percent cheaper at launch).
- More heavily discounted: Has been on the market for longer (launched in February 2018).
If the count of individual advantages (bullet points above) is taken as a guide, the A7 III is the clear winner of the contest (17 : 5 points). 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 wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro 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 says little about, for example, the shooting experience and imaging performance of the M10-P and the A7 III in practical situations. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
This is where reviews by experts come in. The following table reports the overall ratings of the cameras as published by some of the major 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.
Care should be taken when interpreting the review scores above, though. The ratings are only valid when referring to cameras in the same category and of the same age. Thus, a score needs to be put into the context of the launch date and the launch price of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.
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. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
- Canon 1Ds vs Leica M10-P
- Canon 400D vs Sony A7 III
- Leica M Typ 240 vs Leica M10-P
- Leica M10-P vs Nikon D3500
- Leica M10-P vs Olympus E-510
- Leica M10-P vs Ricoh WG-6
- Leica M10-P vs Sony RX100 IV
- Nikon 1 V2 vs Sony A7 III
- Nikon D2X vs Sony A7 III
- Pentax K-3 II vs Sony A7 III
- Sony A3000 vs Sony A7 III
- Sony A7 III vs Zeiss ZX1
Specifications: Leica M10-P vs Sony A7 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-P||Sony A7 III|
|Camera Type||Rangefinder camera||Mirrorless system camera|
|Camera Lens||Leica M mount lenses||Sony E mount lenses|
|Launch Date||August 2018||February 2018|
|Launch Price||USD 7995||USD 1999|
|Sensor Specs||Leica M10-P||Sony A7 III|
|Sensor Format||Full Frame Sensor||Full Frame Sensor|
|Sensor Size||35.8 x 23.9 mm||35.6 x 23.8 mm|
|Sensor Area||855.62 mm2||847.28 mm2|
|Sensor Diagonal||43 mm||42.8 mm|
|Sensor Resolution||23.8 Megapixels||24 Megapixels|
|Image Resolution||5952 x 3992 pixels||6000 x 4000 pixels|
|Pixel Pitch||6.00 μm||5.94 μm|
|Pixel Density||2.78 MP/cm2||2.83 MP/cm2|
|Moiré control||no AA filter||Anti-Alias filter|
|Movie Capability||no Video||4K/30p Video|
|ISO Setting||100-50000 ISO||100-51200 ISO|
|ISO Boost||no Enhancement||50-204800 ISO|
|Image Processor||Maestro II||BIONZ X|
|DXO Sensor Quality (score)||..||96|
|DXO Color Depth (bits)||..||25.0|
|DXO Dynamic Range (EV)||..||14.7|
|DXO Low Light (ISO)||..||3730|
|Screen Specs||Leica M10-P||Sony A7 III|
|Viewfinder Type||Optical viewfinder||Electronic viewfinder|
|Viewfinder Field of View||100%||100%|
|Viewfinder Resolution||2359k dots|
|LCD Framing||Live View||Live View|
|Rear LCD Size||3.0 inch||3.0 inch|
|LCD Resolution||1037k dots||922k dots|
|LCD Attachment||Fixed screen||Tilting screen|
|Shooting Specs||Leica M10-P||Sony A7 III|
|Focus System||Manual Focus||On-Sensor Phase-detect|
|Manual Focusing Aid||Focus Peaking||Focus Peaking|
|Max Shutter Speed (mechanical)||1/4000/s||1/8000/s|
|Continuous Shooting||5 shutter flaps/s||10 shutter flaps/s|
|Electronic Shutter||no E-Shutter||YES|
|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||MS or SDXC cards|
|Second Storage Option||Single card slot||Dual card slots|
|UHS card support||UHS-I||Single UHS-II|
|Connectivity Specs||Leica M10-P||Sony A7 III|
|USB Connector||USB no||USB 3.1|
|HDMI Port||no HDMI||micro HDMI|
|Microphone Port||no MIC socket||External MIC port|
|Headphone Socket||no Headphone port||Headphone port|
|Wifi Support||Wifi built-in||Wifi built-in|
|Near-Field Communication||no NFC||NFC built-in|
|Bluetooth Support||no Bluetooth||Bluetooth built-in|
|Body Specs||Leica M10-P||Sony A7 III|
|Environmental Sealing||Weathersealed body||Weathersealed body|
|Battery Life (CIPA)||210 shots per charge||610 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)
127 x 96 x 74 mm
(5.0 x 3.8 x 2.9 in)
|Camera Weight||660 g (23.3 oz)||650 g (22.9 oz)|
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