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Leica S3 vs Olympus E-M5 III

The Leica S3 and the Olympus OM-D E-M5 Mark III are two digital cameras that were revealed to the public, respectively, in September 2018 and October 2019. The S3 is a DSLR, while the E-M5 III is a mirrorless interchangeable lens camera. The cameras are based on a medium format (S3) and a Four Thirds (E-M5 III) sensor. The Leica has a resolution of 64 megapixels, whereas the Olympus provides 20.2 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications
Leica S3 VS Olympus E-M5 III
Leica S3 Olympus E-M5 III
Digital single lens reflex Mirrorless system camera
Leica S mount lenses Micro Four Thirds lenses
64 MP, Medium Format Sensor 20.2 MP, Four Thirds Sensor
4K/24p Video 4k/24p Video
ISO 100-50000 ISO 200-25600
Optical viewfinder Electronic viewfinder (2360k dots)
3.0" LCD, 922k dots 3.0" LCD, 1040k dots
Fixed screen (not touch-sensitive) Swivel touchscreen
3 shutter flaps per second 10 shutter flaps per second
No shake reductionIn-body stabilization
Weathersealed bodyWeathersealed body
160 x 120 x 80 mm, 1260 g 125 x 85 x 50 mm, 414 g

Going beyond this snapshot of core features and characteristics, what are the differences between the Leica S3 and the Olympus OM-D E-M5 Mark 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.

Body comparison

The physical size and weight of the Leica S3 and the Olympus E-M5 III are illustrated in the side-by-side display below. The two cameras are presented according to their relative size. Three consecutive views from the front, the top, and the rear side are shown. All size dimensions are rounded to the nearest millimeter.

The E-M5 III can be obtained in two different colors (black, silver), while the S3 is only available in black.

Size Leica S3 vs Olympus E-M5 III
Compare S3 versus E-M5 III top
Comparison S3 or E-M5 III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Olympus E-M5 III is considerably smaller (45 percent) than the Leica S3. Moreover, the E-M5 III is substantially lighter (67 percent) than the S3. 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. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.

The power pack in the E-M5 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. 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 camera comparisons there.

Camera Body Specifications
  Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
(CIPA)
Weather
Sealing
(yes/no)
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Leica S3» 6.3 in 4.7 in 3.1 in 44.4 oz .. Y Sep 2018 18,995 iLeica S3
 
Olympus E-M5 III« 4.9 in 3.3 in 2.0 in 14.6 oz 310 Y Oct 2019 1,199 iOlympus E-M5 III
 
Leica Q2« » 5.1 in 3.1 in 3.6 in 25.3 oz 370 Y Mar 2019 4,995 iLeica Q2
 
Leica M-E Typ 240« » 5.5 in 3.1 in 1.7 in 24.0 oz .. Y Jun 2019 3,999 iLeica 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 iLeica M10-P
 
Leica M10« » 5.5 in 3.1 in 1.5 in 23.3 oz 210 Y Jan 2017 6,595 iLeica M10
 
Leica S-E Typ 006« » 6.3 in 4.7 in 3.1 in 44.4 oz .. Y Sep 2014 16,900iLeica S-E Typ 006
 
Leica S Typ 007« » 6.3 in 4.7 in 3.1 in 44.4 oz .. Y Sep 2014 24,490 iLeica S Typ 007
 
Leica S Typ 006« » 6.3 in 4.7 in 3.1 in 44.4 oz .. Y Sep 2012 21,950iLeica S Typ 006
 
Leica S2« » 6.3 in 4.7 in 3.1 in 49.7 oz .. Y Sep 2008 22,995iLeica S2
 
Nikon D6« » 6.3 in 6.4 in 3.6 in 44.8 oz 3580 Y Feb 2020 6,499 iNikon D6
 
Olympus PEN-F« » 4.9 in 2.8 in 1.5 in 15.1 oz 330 n Jan 2016 1,199 iOlympus PEN-F
 
Olympus E-M5 II« » 4.9 in 3.3 in 1.8 in 16.5 oz 310 Y Feb 2015 1,099iOlympus E-M5 II
 
Olympus E-M1« » 5.1 in 3.7 in 2.5 in 17.5 oz 350 Y Sep 2013 1,399iOlympus E-M1
 
Olympus E-M5« » 4.8 in 3.5 in 1.7 in 15.0 oz 360 Y Feb 2012 1,299iOlympus E-M5
 
Panasonic GX8« » 5.2 in 3.1 in 2.5 in 17.2 oz 330 Y Jul 2015 1,199iPanasonic GX8
 
Sony RX10 IV« » 5.2 in 3.7 in 5.7 in 38.6 oz 400 Y Sep 2017 1,699 iSony RX10 IV
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 E-M5 III was launched at a markedly lower price (by 94 percent) than the S3, 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.

 

Sensor comparison

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. 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 more expensive and lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the Leica S3 features a medium format sensor and the Olympus E-M5 III a Four Thirds sensor. The sensor area in the E-M5 III is 83 percent smaller. As a result of these sensor size differences, the cameras have a format factor of, respectively, 0.8 and 2.0. The sensor in the S3 has a native 3:2 aspect ratio, while the one in the E-M5 III offers a 4:3 aspect.

In terms of underlying technology, both cameras are build around CMOS sensors.

Leica S3 and Olympus E-M5 III sensor measures

With 64MP, the S3 offers a higher resolution than the E-M5 III (20.2MP), but the S3 nevertheless has larger individual pixels (pixel pitch of 4.59μm versus 3.34μm for the E-M5 III) due to its larger sensor. However, the E-M5 III is a somewhat more recent model (by 1 year) than the S3, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixels. 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 resolution advantage of the Leica S3 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the S3 for good quality output (200 dots per inch) amounts to 49 x 32.7 inch or 124.5 x 83 cm, for very good quality (250 dpi) 39.2 x 26.1 inch or 99.6 x 66.4 cm, and for excellent quality (300 dpi) 32.7 x 21.8 inch or 83 x 55.3 cm. The corresponding values for the Olympus E-M5 III are 25.9 x 19.4 inch or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inch or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inch or 43.9 x 32.9 cm for excellent quality prints.

The E-M5 III has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

Unlike the S3, the E-M5 III has the capacity to capture high quality composite images (80MP) 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).

The Leica S3 has a native sensitivity range from ISO 100 to ISO 50000. The corresponding ISO settings for the Olympus OM-D E-M5 Mark III are ISO 200 to ISO 25600, with the possibility to increase the ISO range to 64-25600.

S3 versus E-M5 III MP

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.

Sensor Characteristics
  Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
Camera
Model
 
Leica S3 Medium Format 64.0 9800 65334K/24p........Leica S3
 
Olympus E-M5 III Four Thirds 20.2 5184 38884k/24p........Olympus E-M5 III
 
Leica Q2 Full Frame 46.7 8368 55844K/30p26.413.5249196Leica Q2
 
Leica M-E Typ 240 Full Frame 23.7 5952 39761080/25p........Leica M-E Typ 240
 
Leica M10-P Full Frame 23.8 5952 3992none........Leica M10-P
 
Leica M10 Full Frame 23.8 5952 3992none24.413.2213386Leica M10
 
Leica S-E Typ 006 Medium Format 37.5 7500 5000none........Leica S-E Typ 006
 
Leica S Typ 007 Medium Format 37.5 7500 50004K/24p........Leica S Typ 007
 
Leica S Typ 006 Medium Format 37.5 7500 5000none23.912.282476Leica S Typ 006
 
Leica S2 Medium Format 37.5 7500 5000none........Leica S2
 
Nikon D6 Full Frame 20.7 5568 37124K/30p........Nikon D6
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474Olympus PEN-F
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273Olympus E-M5 II
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773Olympus E-M1
 
Olympus E-M5 Four Thirds 15.9 4608 34561080/60i22.812.382671Olympus E-M5
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675Panasonic GX8
 
Sony RX10 IV 1-inch 20.0 5472 36484K/30p........Sony RX10 IV

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (4K/24p).

 

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the E-M5 III has an electronic viewfinder (2360k dots), while the S3 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 viewfinder in the E-M5 III offers a wider field of view (100%) than the one in the S3 (98%), so that a larger proportion of the captured image is visible in the finder. On the other hand, the viewfinder of the S3 has a higher magnification (0.87x vs 0.68x), so that the size of the image transmitted appears closer to the size seen with the naked human eye. The adjacent table lists some of the other core features of the Leica S3 and Olympus E-M5 III along with similar information for a selection of comparators.

Core Features
  Camera
Model
Viewfinder
(Type or
'000 dots)
Control
Panel
(yes/no)
LCD
Size
(inch)
LCD
Resolution
('000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Mech
Shutter
Speed
Shutter
Flaps
(1/sec)
Built-in
Flash
(yes/no)
Built-in
Image
Stab
Camera
Model
 
Leica S3optical Y 3.0 922 fixed n 1/4000s 3.0 n n Leica S3
 
Olympus E-M5 III2360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y Olympus E-M5 III
 
Leica Q23680 n 3.0 1040 fixed Y 1/2000s 20.0 n Y Leica Q2
 
Leica M-E Typ 240optical n 3.0 920 fixed n 1/4000s 3.0 n n Leica M-E Typ 240
 
Leica M10-Poptical n 3.0 1037 fixed Y 1/4000s 5.0 n n Leica M10-P
 
Leica M10optical n 3.0 1037 fixed n 1/4000s 5.0 n n Leica M10
 
Leica S-E Typ 006optical Y 3.0 922 fixed n 1/4000s 1.5 n n Leica S-E Typ 006
 
Leica S Typ 007optical Y 3.0 922 fixed n 1/4000s 3.5 n n Leica S Typ 007
 
Leica S Typ 006optical Y 3.0 922 fixed n 1/4000s 1.5 n n Leica S Typ 006
 
Leica S2optical Y 3.0 460 fixed n 1/4000s 1.5 n n Leica S2
 
Nikon D6optical Y 3.2 2359 fixed Y 1/8000s 14.0 n n Nikon D6
 
Olympus PEN-F2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus PEN-F
 
Olympus E-M5 II2360 n 3.0 1037 swivel Y 1/8000s 10.0 n Y Olympus E-M5 II
 
Olympus E-M12360 n 3.0 1037 tilting Y 1/8000s 10.0 n Y Olympus E-M1
 
Olympus E-M51440 n 3.0 610 tilting Y 1/4000s 9.0 n Y Olympus E-M5
 
Panasonic GX82360 n 3.0 1040 swivel Y 1/8000s 10.0 n Y Panasonic GX8
 
Sony RX10 IV2359 Y 3.0 1440 tilting Y 1/2000s 24.0 Y Y Sony RX10 IV

One feature that is present on the S3, but is missing on the E-M5 III is a top-level LCD. While being, of course, smaller than the rear screen, the control panel conveys some of the essential shooting information and can be convenient for quick and easy settings verification.

The E-M5 III has an articulated screen that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in taking selfies. In contrast, the S3 does not have a selfie-screen.

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 E-M5 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 Olympus E-M5 III has 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 S3 writes its imaging data to Compact Flash or SDXC cards, while the E-M5 III uses SDXC cards. The S3 features dual card slots, which can be very useful in case a memory card fails. In contrast, the E-M5 III only has one slot. Both cameras support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 MB/s.

 

Connectivity comparison

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 S3 and Olympus OM-D E-M5 Mark III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections
  Camera
Model
Hotshoe
Port
Internal
Microphone
Internal
Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
Camera
Model
 
Leica S3YstereomonoYYmini3.0Y--Leica S3
 
Olympus E-M5 IIIYstereomonoY-micro2.0Y-YOlympus E-M5 III
 
Leica Q2Ystereomono--nonenoneY-YLeica Q2
 
Leica M-E Typ 240Ymononone--none2.0---Leica M-E Typ 240
 
Leica M10-PYnonenone--nonenoneY--Leica M10-P
 
Leica M10Ynonenone--nonenoneY--Leica M10
 
Leica S-E Typ 006Ynonenone--mini2.0---Leica S-E Typ 006
 
Leica S Typ 007YstereomonoYYmini3.0Y--Leica S Typ 007
 
Leica S Typ 006Ynonenone--mini2.0---Leica S Typ 006
 
Leica S2Ynonenone--mini2.0---Leica S2
 
Nikon D6YstereomonoYYmini3.1Y-YNikon D6
 
Olympus PEN-FYstereomono--micro2.0Y--Olympus PEN-F
 
Olympus E-M5 IIYstereomonoY-micro2.0Y--Olympus E-M5 II
 
Olympus E-M1YstereomonoY-micro2.0Y--Olympus E-M1
 
Olympus E-M5Ystereomono--mini2.0---Olympus E-M5
 
Panasonic GX8YstereomonoY-micro2.0YY-Panasonic GX8
 
Sony RX10 IVYstereomonoYYmicro2.0YY-Sony RX10 IV

It is notable that the S3 has a headphone jack, which is not present on the E-M5 III This port makes it possible to attach external headphones and monitor the quality of sound during the recording process.

Both cameras feature a PC Sync terminal to control professional strobe lights, which will be appreciated by studio photographers.

Travel and landscape photographers will find it useful that the S3 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the S3 and the E-M5 III are recent models that are part of the current product line-up. The S3 replaced the earlier Leica S Typ 007, while the E-M5 III followed on from the Olympus E-M5 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 Olympus websites.

Review summary

So what conclusions can be drawn? Is there a clear favorite between the Leica S3 and the Olympus E-M5 III? Which camera is better? The listing below highlights the relative strengths of the two models.

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Arguments in favor of the Leica S3:

  • More detail: Offers more megapixels (64 vs 20.2MP) with a 82% higher linear resolution.
  • 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.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • Brighter framing: Features an optical viewfinder for clear, lag-free composition.
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.87x vs 0.68x).
  • Easier setting verification: Features an LCD display on top to control shooting parameters.
  • Easier geotagging: Features an internal GPS sensor to log localization data.
  • Faster data transfer: Supports a more advanced USB protocol (3.0 vs 2.0).
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • 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 September 2018).

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Advantages of the Olympus OM-D E-M5 Mark III:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • More framing info: Has an electronic viewfinder that displays shooting data.
  • More complete view: Has a viewfinder with a larger field of view (100% vs 98%).
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 922k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
  • Faster burst: Shoots at higher frequency (10 vs 3 flaps/sec) to capture the decisive moment.
  • Less disturbing: Has an electronic shutter option for completely silent shooting.
  • Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
  • More compact: Is smaller (125x85mm vs 160x120mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight (by 846g or 67 percent) and is thus easier to take along.
  • 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.
  • More legacy lens friendly: Can use many non-native lenses via adapters.
  • Easier wireless transfer: Supports Bluetooth for image sharing without cables.
  • More affordable: Was introduced into a lower priced category (94 percent cheaper at launch).
  • More modern: Was introduced somewhat (1 year) more recently.

If the count of relative strengths (bullet points above) is taken as a measure, the E-M5 III is the clear winner of the contest (19 : 14 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding 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.

S3 14:19 E-M5 III

How about other alternatives? Do the specifications of the Leica S3 and the Olympus E-M5 III place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.

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 S3 and the E-M5 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.

Expert reviews

This is why hands-on reviews by experts 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.

Review Scores
  Camera
Model
cam
era
  labs  
dp
re
  view  
e
photo
  zine  
ima
ging
resource
photo
graphy
  blog  
Camera
Launch
(announced)
Launch
Price
(USD)
Street
Price
(USD)
Camera
Model
 
Leica S3.......... Sep 2018 18,995 iLeica S3
 
Olympus E-M5 III+82/1004.5/5..4.5/5 Oct 2019 1,199 iOlympus E-M5 III
 
Leica Q2..84/1004.5/5..4/5 Mar 2019 4,995 iLeica Q2
 
Leica M-E Typ 240.......... Jun 2019 3,999 iLeica M-E Typ 240
 
Leica M10-P........4/5 Aug 2018 7,995 iLeica M10-P
 
Leica M10....4/5..4.5/5 Jan 2017 6,595 iLeica M10
 
Leica S-E Typ 006.......... Sep 2014 16,900iLeica S-E Typ 006
 
Leica S Typ 007.......... Sep 2014 24,490 iLeica S Typ 007
 
Leica S Typ 006.......... Sep 2012 21,950iLeica S Typ 006
 
Leica S2.......... Sep 2008 22,995iLeica S2
 
Nikon D6....4.5/5..4.5/5 Feb 2020 6,499 iNikon D6
 
Olympus PEN-F..82/1004.5/54.5/55/5 Jan 2016 1,199 iOlympus PEN-F
 
Olympus E-M5 II+ +81/1005/54.5/55/5 Feb 2015 1,099iOlympus E-M5 II
 
Olympus E-M1+ +84/1004.5/54.5/54.5/5 Sep 2013 1,399iOlympus E-M1
 
Olympus E-M5+ +80/1004.5/55/55/5 Feb 2012 1,299iOlympus E-M5
 
Panasonic GX8+82/1004.5/55/54.5/5 Jul 2015 1,199iPanasonic GX8
 
Sony RX10 IV+84/1004.5/5..5/5 Sep 2017 1,699 iSony RX10 IV
Notes: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, 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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

Leica S3:
Check Amazon price
Olympus E-M5 III:
Check Amazon price

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 use the search menu below. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

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    Specifications: Leica S3 vs Olympus E-M5 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 Specifications
    Camera Model Leica S3 Olympus E-M5 III
    Camera Type Digital single lens reflex Mirrorless system camera
    Camera Lens Leica S mount lenses Micro Four Thirds lenses
    Launch Date September 2018 October 2019
    Launch Price USD 18995 USD 1199
    Sensor Specs Leica S3 Olympus E-M5 III
    Sensor Technology CMOS CMOS
    Sensor Format Medium Format Sensor Four Thirds Sensor
    Sensor Size 45.0 x 30.0 mm 17.3 x 13.0 mm
    Sensor Area 1350 mm2 224.9 mm2
    Sensor Diagonal 54.1 mm 21.6 mm
    Crop Factor 0.8x 2.0x
    Sensor Resolution 64 Megapixels 20.2 Megapixels
    Image Resolution 9800 x 6533 pixels 5184 x 3888 pixels
    Pixel Pitch 4.59 μm 3.34 μm
    Pixel Density 4.74 MP/cm2 8.96 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/24p Video 4k/24p Video
    ISO Setting 100-50000 ISO 200-25600 ISO
    ISO Boost no Enhancement 64-25600 ISO
    Image Processor Maestro II TruePic VIII
    Screen Specs Leica S3 Olympus E-M5 III
    Viewfinder Type Optical viewfinder Electronic viewfinder
    Viewfinder Field of View 98% 100%
    Viewfinder Magnification 0.87x 0.68x
    Viewfinder Resolution 2360k dots
    Top-Level Screen Control Panel no Top Display
    LCD Framing Live View Live View
    Rear LCD Size 3.0 inch 3.0 inch
    LCD Resolution 922k dots 1040k dots
    LCD Attachment Fixed screen Swivel screen
    Touch Input no Touchscreen Touchscreen
    Shooting Specs Leica S3 Olympus E-M5 III
    Focus System Phase-detect AF On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/4000/s 1/8000/s
    Continuous Shooting 3 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterno E-Shutterup to 1/32000s
    Time-Lapse Photographyno IntervalometerIntervalometer built-in
    Image StabilizationNo shake reductionIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium CF or SDXC cards SDXC cards
    Second Storage Option Dual card slots Single card slot
    UHS card support UHS-II UHS-II
    Connectivity Specs Leica S3 Olympus E-M5 III
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket PC Sync socket
    USB Connector USB 3.0 USB 2.0
    HDMI Port mini HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port no Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support no Bluetooth Bluetooth built-in
    Geotagging GPS built-in no internal GPS
    Body Specs Leica S3 Olympus E-M5 III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type BP-PRO1 BLS-50
    In-Camera Charging no USB charging USB charging
    Body Dimensions 160 x 120 x 80 mm
    (6.3 x 4.7 x 3.1 in)
    125 x 85 x 50 mm
    (4.9 x 3.3 x 2.0 in)
    Camera Weight 1260 g (44.4 oz) 414 g (14.6 oz)

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