Leica M10 versus Sony A7R III
The Leica M10 (Typ 3656) and the Sony Alpha A7R III are two enthusiast cameras that were announced, respectively, in January 2017 and October 2017. The M10 Typ 3656 is a fixed lens compact, while the A7R III is a rangefinder-style mirrorless. Both cameras are equipped with a full frame sensor. The Leica has a resolution of 23.8 megapixel, whereas the Sony provides 42.2 MP.
An illustration of the physical size and weight of the Leica M10 and the Sony A7R III is provided in the side-by-side display below. 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. If you prefer, you can also use the toggle button to switch to a comparison in percentage terms (in this case, the camera on the left – the M10 Typ 3656 – represents 100 percent across all the size and weight measures).
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A7R III is notably larger (10 percent) than the Leica M10. However, the A7R III is slightly lighter (2 percent) than the M10 Typ 3656. It is noteworthy in this context that the A7R III is splash and dust-proof, while the M10 Typ 3656 does not feature any corresponding weather-sealing.
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 find an overview of optics for the two cameras in the Leica M Lens Catalog (M10 Typ 3656) and the Sony FE Lens Catalog (A7R III).
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, just select a new right or left comparator from among the camera models in the table. Alternatively, you can also move across to the CAM-parator tool and choose from the broad selection of possible comparisons there.
|Camera Body Specifications
|Leica M10 (⇒ rgt)||139 mm||80 mm||39 mm||660 g||210||no||2017||6,595||latest||check|
|Sony A7R III (⇒ lft)||127 mm||96 mm||74 mm||650 g||650||YES||2017||3,199||latest||check|
|Canon G9 X Mark II (⇒ lft | rgt)||98 mm||58 mm||31 mm||206 g||235||no||2017||529||latest||check|
|Canon M100 (⇒ lft | rgt)||108 mm||67 mm||35 mm||302 g||295||no||2017||499||latest||check|
|Canon M6 (⇒ lft | rgt)||112 mm||68 mm||45 mm||390 g||295||no||2017||779||latest||check|
|Fujifilm X100F (⇒ lft | rgt)||127 mm||75 mm||52 mm||469 g||390||no||2017||1,299||latest||check|
|Fujifilm X-A3 (⇒ lft | rgt)||117 mm||67 mm||40 mm||339 g||410||no||2016||399||latest||check|
|Leica TL2 (⇒ lft | rgt)||134 mm||69 mm||33 mm||399 g||250||no||2017||1,950||latest||check|
|Leica CL (⇒ lft | rgt)||131 mm||78 mm||45 mm||403 g||220||no||2017||2,795||latest||check|
|Leica M Typ 240 (⇒ lft | rgt)||139 mm||80 mm||42 mm||680 g||..||YES||2012||6,950||discont.||check|
|Leica M9 (⇒ lft | rgt)||139 mm||80 mm||37 mm||585 g||..||no||2009||7,999||discont.||check|
|Leica M8 (⇒ lft | rgt)||139 mm||80 mm||37 mm||591 g||..||no||2006||5,499||discont.||check|
|Nikon D850 (⇒ lft | rgt)||146 mm||124 mm||79 mm||1005 g||1840||YES||2017||3,299||latest||check|
|Sony A9 (⇒ lft | rgt)||127 mm||96 mm||63 mm||673 g||650||YES||2017||4,499||latest||check|
|Sony A99 II (⇒ lft | rgt)||143 mm||104 mm||76 mm||849 g||490||YES||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||127 mm||96 mm||60 mm||625 g||290||YES||2015||3,199||discont.||check|
|Sony A7S II (⇒ lft | rgt)||127 mm||96 mm||60 mm||627 g||370||YES||2015||2,999||latest||check|
The listed prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The A7R III was launched at a markedly lower price (by 51 percent) than the M10 Typ 3656, 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.
The imaging sensor is at the core of digital cameras and its size is one of the main determining factors 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. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its 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 A7R III is 1 percent bigger. 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.
With 42.2MP, the A7R III offers a higher resolution than the M10 Typ 3656 (23.8MP), but the A7R III has smaller individual pixels (pixel pitch of 4.52μm versus 6.00μm for the M10 Typ 3656). Yet, the A7R III is a somewhat more recent model (by 9 months) than the M10 Typ 3656, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. 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.
Unlike the M10 Typ 3656, the A7R III has the capacity to capture high quality composite images by combining multiple shots after shifting its sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).
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 following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
|Leica M10 (⇒ rgt)||Full Frame||23.8||5952||3992||no||..||..||..||..|
|Sony A7R III (⇒ lft)||Full Frame||42.2||7952||5304||4K/30p||..||..||..||..|
|Canon G9 X Mark II (⇒ lft | rgt)||1-inch||20.0||5472||3648||1080/60p||21.9||12.5||522||65|
|Canon M100 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|Canon M6 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||..||..||..||..|
|Fujifilm X100F (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||-||-||-||-|
|Fujifilm X-A3 (⇒ lft | rgt)||APS-C||24.0||6000||4000||1080/60p||-||-||-||-|
|Leica TL2 (⇒ lft | rgt)||APS-C||24.1||6014||4014||4K/30p||..||..||..||..|
|Leica CL (⇒ lft | rgt)||APS-C||24.1||6014||4014||4K/30p||..||..||..||..|
|Leica M Typ 240 (⇒ lft | rgt)||Full Frame||23.7||5952||3976||1080/25p||24.0||13.3||1860||84|
|Leica M9 (⇒ lft | rgt)||Full Frame||18.1||5212||3472||no||22.5||11.7||884||69|
|Leica M8 (⇒ lft | rgt)||APS-H||10.4||3936||2630||no||21.1||11.3||663||59|
|Nikon D850 (⇒ lft | rgt)||Full Frame||45.4||8256||5504||4K/30p||26.4||14.8||2660||100|
|Sony A9 (⇒ lft | rgt)||Full Frame||24.0||6000||4000||4K/30p||24.9||13.3||3517||92|
|Sony A99 II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||25.4||13.4||2317||92|
|Sony A7R II (⇒ lft | rgt)||Full Frame||42.2||7952||5304||4K/30p||26.0||13.9||3434||98|
|Sony A7S II (⇒ lft | rgt)||Full Frame||12.0||4240||2832||4K/30p||23.6||13.3||2993||85|
Many modern cameras are not only capable of taking still images, but also of capturing video footage. The A7R III indeed provides for movie recording, while the M10 Typ 3656 does not. The highest resolution format that the A7R III can use is 4K/30p.
Beyond body and sensor, cameras can and do differ across a range of features. For example, the A7R III has an electronic viewfinder (3686k dots), while the M10 Typ 3656 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 table below summarizes some of the other core capabilities of the Leica M10 and Sony A7R III in connection with corresponding information for a sample of similar cameras. The full specs-sheets can be found in the camera manual or, for example, in the dpreview camera hub.
|Leica M10 (⇒ rgt)||optical||no||3.0||1037||fixed||no||4000||5.0||no||no|
|Sony A7R III (⇒ lft)||3686||no||3.0||1440||tilting||YES||8000||10.0||no||YES|
|Canon G9 X Mark II (⇒ lft | rgt)||no||no||3.0||1040||fixed||YES||2000||8.2||6||no|
|Canon M100 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||6.1||5||no|
|Canon M6 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||9.0||5||no|
|Fujifilm X100F (⇒ lft | rgt)||2360||no||3.0||1040||fixed||no||4000||8.0||4.6||no|
|Fujifilm X-A3 (⇒ lft | rgt)||no||no||3.0||1040||tilting||YES||4000||6.0||7||no|
|Leica TL2 (⇒ lft | rgt)||no||no||3.7||1230||fixed||YES||4000||7.0||no||no|
|Leica CL (⇒ lft | rgt)||2360||YES||3.0||1040||fixed||YES||8000||10.0||no||no|
|Leica M Typ 240 (⇒ lft | rgt)||optical||no||3.0||920||fixed||no||4000||3.0||no||no|
|Leica M9 (⇒ lft | rgt)||optical||no||2.5||230||fixed||no||4000||2.0||no||no|
|Leica M8 (⇒ lft | rgt)||optical||no||2.5||230||fixed||no||8000||2.0||no||no|
|Nikon D850 (⇒ lft | rgt)||optical||YES||3.2||2359||tilting||YES||8000||9.0||no||no|
|Sony A9 (⇒ lft | rgt)||3686||no||3.0||1440||tilting||YES||8000||20.0||no||YES|
|Sony A99 II (⇒ lft | rgt)||2400||YES||3.0||1229||tilting||no||8000||12.0||no||YES|
|Sony A7R II (⇒ lft | rgt)||2400||no||3.0||1229||tilting||no||8000||5.0||no||YES|
|Sony A7S II (⇒ lft | rgt)||2400||no||3.0||1229||tilting||no||8000||5.0||no||YES|
Both the M10 Typ 3656 and the A7R III are current models that good online retailers will have in stock. You can check the latest prices, for example, at amazon. The M10 Typ 3656 replaced the earlier Leica M (Typ 240), while the A7R III followed on from the Sony A7R II.
So how do things add up? Is the Leica M10 better than the Sony A7R III or vice versa? Below is a summary of the relative strengths of each of the two contestants.
Reasons to prefer the Leica M10 (Typ 3656):
- Brighter framing: Features an optical viewfinder for clear, lag-free composition.
- More prestigious: Has the Leica luxury appeal, which ensures a high resale price.
- More heavily discounted: Has been on the market for longer (launched in January 2017).
Arguments in favor of the Sony Alpha A7R III:
- More detail: Has more megapixels (42.2 vs 23.8MP), which boosts linear resolution by 33%.
- High quality composites: Can combine several shots after pixel-shifting its sensor.
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- More framing info: Has an electronic viewfinder that displays shooting data.
- More detailed LCD: Has a higher resolution rear screen (1440k vs 1037k dots).
- More flexible LCD: Has a tilting screen for odd-angle shots in landscape orientation.
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has a higher mechanical shutter speed (8000/sec vs 4000/sec) to freeze action.
- Faster burst: Shoots at higher frequency (10 vs 5 flaps/sec) to capture the decisive moment.
- Longer lasting: Gets more shots (650 versus 210) out of a single battery charge.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- Sharper images: Has stabilization technology build-in to reduce the impact of hand-shake.
- More affordable: Was introduced into a lower priced category (51 percent cheaper at launch).
- More modern: Was introduced somewhat (9 months) more recently.
If the count of individual advantages (bullet points above) is taken as a guide, the A7R III is the clear winner of the contest (14 : 3 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.
In any case, while the specs-based evaluation of cameras is instructive in revealing their potential as photographic tools, it remains incomplete and does no justice, for example, to the way the M10 Typ 3656 or the A7R III handle or perform in practice. 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 why hands-on reviews by experts are important. The following table reports the overall rankings of the cameras as published by some of the major camera review sites. You can find the full text of the reviews, respectively, at cameralabs.com, dpreview.com, ephotozine.com, imaging-resource.com, and photographyblog.com.
|Leica M10 (⇒ rgt)||-||-||4/5||-||4.5/5||2017||6,595||latest||check|
|Sony A7R III (⇒ lft)||..||..||..||..||..||2017||3,199||latest||check|
|Canon G9 X Mark II (⇒ lft | rgt)||..||..||4.5/5||4.5/5||4.5/5||2017||529||latest||check|
|Canon M100 (⇒ lft | rgt)||..||..||4/5||..||3.5/5||2017||499||latest||check|
|Canon M6 (⇒ lft | rgt)||-||80/100 Silver||4/5||4.5/5||4/5||2017||779||latest||check|
|Fujifilm X100F (⇒ lft | rgt)||Rec||83/100 Gold||4.5/5||..||4.5/5||2017||1,299||latest||check|
|Fujifilm X-A3 (⇒ lft | rgt)||-||74/100||4.5/5||-||4/5||2016||399||latest||check|
|Leica TL2 (⇒ lft | rgt)||..||..||..||..||4/5||2017||1,950||latest||check|
|Leica CL (⇒ lft | rgt)||..||..||..||..||..||2017||2,795||latest||check|
|Leica M Typ 240 (⇒ lft | rgt)||-||-||4/5||-||-||2012||6,950||discont.||check|
|Leica M9 (⇒ lft | rgt)||-||-||4.5/5||4.5/5||-||2009||7,999||discont.||check|
|Leica M8 (⇒ lft | rgt)||-||HiRec||-||-||-||2006||5,499||discont.||check|
|Nikon D850 (⇒ lft | rgt)||..||89/100 Gold||4.5/5||..||5/5||2017||3,299||latest||check|
|Sony A9 (⇒ lft | rgt)||..||89/100 Gold||5/5||5/5||5/5||2017||4,499||latest||check|
|Sony A99 II (⇒ lft | rgt)||-||85/100 Silver||4.5/5||4.5/5||4.5/5||2016||3,199||latest||check|
|Sony A7R II (⇒ lft | rgt)||HiRec||90/100 Gold||5/5||4.5/5||5/5||2015||3,199||discont.||check|
|Sony A7S II (⇒ lft | rgt)||Rec||-||4.5/5||5/5||5/5||2015||2,999||latest||check|
Care should be taken when interpreting the review scores above, 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 comparisons of ratings among very different cameras or across long time periods have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.
In case you are interested in seeing how other cameras pair up, just make your choice using the following search menu. An an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool. If the camera you are interested in is not available, please contact me, and I will try to locate and add the respective data to the application.
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