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OM System OM-5 vs Sony A7R III

The OM System OM-5 and the Sony Alpha A7R III are two enthusiast cameras that were officially introduced, respectively, in October 2022 and October 2017. Both the OM-5 and the A7R III are mirrorless interchangeable lens cameras that are based on a Four Thirds (OM-5) and a full frame (A7R III) sensor. The OM System has a resolution of 20.2 megapixels, whereas the Sony provides 42.2 MP.

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

Headline Specifications
OM System OM-5
versus
Sony A7R III
OM System OM-5   Sony A7R III
Mirrorless system camera Mirrorless system camera
Micro Four Thirds lenses Sony E mount lenses
20.2 MP – Four Thirds sensor 42.2 MP – Full Frame sensor
4K/30p Video 4K/30p Video
ISO 200-25,600 ISO 100-32,000 (50 - 102,400)
Electronic viewfinder (2360k dots) Electronic viewfinder (3686k dots)
3.0" LCD – 1040k dots 3.0" LCD – 1440k dots
Swivel touchscreen Tilting touchscreen
10 shutter flaps per second 10 shutter flaps per second
In-body stabilizationIn-body stabilization
Weathersealed bodyWeathersealed body
310 shots per battery charge650 shots per battery charge
125 x 85 x 50 mm, 414 g 127 x 96 x 74 mm, 650 g
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Check OM-5 price at
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Check A7R III offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the OM System OM-5 and the Sony Alpha A7R 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.

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Body comparison

The side-by-side display below illustrates the physical size and weight of the OM System OM-5 and the Sony A7R III. 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 width, height and depth dimensions are rounded to the nearest millimeter.

The OM-5 can be obtained in two different colors (black, silver), while the A7R III is only available in black.

Size OM System OM-5 vs Sony A7R III
Compare OM-5 versus A7R III top
Comparison OM-5 or A7R III rear

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 (15 percent) than the OM System OM-5. Moreover, the A7R III is substantially heavier (57 percent) than the OM-5. 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. A larger imaging sensor will tend to go along with bigger and heavier lenses, although exceptions exist. You can compare the optics available for the two cameras in the Micro Four Thirds Lens Catalog (OM-5) and the Sony FE Lens Catalog (A7R III). Mirrorless cameras, such as the two under consideration, have the additional advantage of having a short flange to focal plane distance, which makes it possible to mount many lenses from other systems onto the camera via adapters.

Concerning battery life, the OM-5 gets 310 shots out of its OM System BLS-50 battery, while the A7R III can take 650 images on a single charge of its Sony NP-FZ100 power pack. The battery packs of both cameras can be charged via USB, which can be very convenient when travelling.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. If you would like to visualize and compare a different camera combination, you can navigate to the CAM-parator app and make your selection from a broad list of cameras there.

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Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price
Street
Price
1.
 
OM System OM-5 125 mm 85 mm 50 mm 414 g 310 Y Oct 2022 EUR 1 299 amazon.com
2.
 
Sony A7R III 127 mm 96 mm 74 mm 650 g 650 Y Oct 2017 EUR 3 499ebay.com
3.
 
Olympus E-M1 130 mm 94 mm 63 mm 497 g 350 Y Sep 2013 EUR 1 499ebay.com
4.
 
Olympus E-M5 II 124 mm 85 mm 45 mm 469 g 310 Y Feb 2015 EUR 1 099ebay.com
5.
 
Olympus E-M5 III 125 mm 85 mm 50 mm 414 g 310 Y Oct 2019 EUR 1 199ebay.com
6.
 
Olympus PEN-F 125 mm 72 mm 37 mm 427 g 330 n Jan 2016 EUR 1 199ebay.com
7.
 
OM System OM-1 135 mm 92 mm 73 mm 599 g 520 Y Feb 2022 EUR 2 199ebay.com
8.
 
Panasonic G90 130 mm 94 mm 77 mm 536 g 290 Y Apr 2019 EUR 999ebay.com
9.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 Y May 2021 EUR 1 699 amazon.com
10.
 
Panasonic GX8 133 mm 78 mm 63 mm 487 g 330 Y Jul 2015 EUR 1 199ebay.com
11.
 
Sony A7R II 127 mm 96 mm 60 mm 625 g 290 Y Jun 2015 EUR 3 499ebay.com
12.
 
Sony A7R IIIA 127 mm 96 mm 74 mm 650 g 650 Y Apr 2021 EUR 3 499 amazon.com
13.
 
Sony A7R IV 129 mm 96 mm 78 mm 665 g 670 Y Jul 2019 EUR 3 999ebay.com
14.
 
Sony A7S II 127 mm 96 mm 60 mm 627 g 370 Y Sep 2015 EUR 3 399ebay.com
15.
 
Sony A9 127 mm 96 mm 63 mm 673 g 650 Y Apr 2017 EUR 5 299ebay.com
16.
 
Sony A6500 120 mm 67 mm 53 mm 453 g 350 Y Oct 2016 EUR 1 699ebay.com
17.
 
Sony A6600 120 mm 67 mm 69 mm 503 g 810 Y Aug 2019 EUR 1 599 amazon.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

The price is, of course, an important factor in any camera decision. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. The OM-5 was launched at a markedly lower price (by 63 percent) than the A7R III, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. 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.

Sensor comparison

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 OM System OM-5 features a Four Thirds sensor and the Sony A7R III a full frame sensor. The sensor area in the A7R III is 283 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 2.0 and 1.0. The sensor in the OM-5 has a native 4:3 aspect ratio, while the one in the A7R III offers a 3:2 aspect.

OM System OM-5 and Sony A7R III sensor measures

With 42.2MP, the A7R III offers a higher resolution than the OM-5 (20.2MP), but the A7R III nevertheless has larger individual pixels (pixel pitch of 4.52μm versus 3.34μm for the OM-5) due to its larger sensor. However, the OM-5 is a much more recent model (by 5 years) than the A7R III, and its sensor will 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.

The resolution advantage of the Sony A7R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A7R III for good quality output (200 dots per inch) amounts to 39.8 x 26.5 inches or 101 x 67.4 cm, for very good quality (250 dpi) 31.8 x 21.2 inches or 80.8 x 53.9 cm, and for excellent quality (300 dpi) 26.5 x 17.7 inches or 67.3 x 44.9 cm. The corresponding values for the OM System OM-5 are 25.9 x 19.4 inches or 65.8 x 49.4 cm for good quality, 20.7 x 15.6 inches or 52.7 x 39.5 cm for very good quality, and 17.3 x 13 inches or 43.9 x 32.9 cm for excellent quality prints.

Both cameras have the capacity to capture high quality composite images by combining multiple shots after shifting the sensor by miniscule distances. This multi-shot, pixel-shift mode is most suitable for photography of stationary objects (landscapes, studio scenes).

The OM System OM-5 has a native sensitivity range from ISO 200 to ISO 25600, which can be extended to ISO 64-25600. The corresponding ISO settings for the Sony Alpha A7R III are ISO 100 to ISO 32000, with the possibility to increase the ISO range to 50-102400.

In terms of underlying technology, the OM-5 is build around a CMOS sensor, while the A7R III uses a BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

OM-5 versus A7R III MP

For many cameras, data on sensor performance has been reported by DXO Mark. 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.

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Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
OM System OM-5 Four Thirds 20.2 5184 38884K/30p23.413.4162278
2.
 
Sony A7R III Full Frame 42.2 7952 53044K/30p26.014.73523100
3.
 
Olympus E-M1 Four Thirds 15.9 4608 34561080/30p23.012.775773
4.
 
Olympus E-M5 II Four Thirds 15.9 4608 34561080/60p23.012.584273
5.
 
Olympus E-M5 III Four Thirds 20.2 5184 38884K/30p23.313.1132476
6.
 
Olympus PEN-F Four Thirds 20.2 5184 38881080/60p23.112.489474
7.
 
OM System OM-1 Four Thirds 20.2 5184 38884K/60p23.413.4155377
8.
 
Panasonic G90 Four Thirds 20.2 5184 38884K/30p23.213.0127375
9.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
10.
 
Panasonic GX8 Four Thirds 20.2 5184 38884K/30p23.512.680675
11.
 
Sony A7R II Full Frame 42.2 7952 53044K/30p26.013.9343498
12.
 
Sony A7R IIIA Full Frame 42.2 7952 53044K/30p26.014.73523100
13.
 
Sony A7R IV Full Frame 60.2 9504 63364K/30p26.014.8334499
14.
 
Sony A7S II Full Frame 12.0 4240 28324K/30p23.613.3299385
15.
 
Sony A9 Full Frame 24.0 6000 40004K/30p24.913.3351792
16.
 
Sony A6500 APS-C 24.0 6000 40004K/30p24.513.7140585
17.
 
Sony A6600 APS-C 24.0 6000 40004K/30p23.813.4149782
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras cannot only take still pictures, but also record videos. Both cameras under consideration have a sensor with sufficiently fast read-out times for moving pictures, and both provide the same movie specifications (4K/30p).

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Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under review are similar with respect to both having an electronic viewfinder. However, the one in the A7R III offers a substantially higher resolution than the one in the OM-5 (3686k vs 2360k dots). The adjacent table lists some of the other core features of the OM System OM-5 and Sony A7R III along with similar information for a selection of comparators.

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Core Features
  empty Camera
Model
Viewfinder
(Type or
000 dots)
Control
Panel
(yes/no)
LCD
Specifications
(inch/000 dots)
LCD
Attach-
ment
Touch
Screen
(yes/no)
Max
Shutter
Speed *
Max
Shutter
Flaps *
Built-in
Flash
(yes/no)
Built-in
Image
Stab
1.
 
OM System OM-52360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
2.
 
Sony A7R III3686 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
3.
 
Olympus E-M12360 n3.0 / 1037 tilting Y 1/8000s 10.0/s n Y
4.
 
Olympus E-M5 II2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
5.
 
Olympus E-M5 III2360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
6.
 
Olympus PEN-F2360 n3.0 / 1037 swivel Y 1/8000s 10.0/s n Y
7.
 
OM System OM-15760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
8.
 
Panasonic G902360 n3.0 / 1240 swivel Y 1/4000s 9.0/s Y Y
9.
 
Panasonic GH5 II3680 n3.0 / 1840 swivel Y 1/8000s 12.0/s n Y
10.
 
Panasonic GX82360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
11.
 
Sony A7R II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
12.
 
Sony A7R IIIA3686 n3.0 / 2340 tilting Y 1/8000s 10.0/s n Y
13.
 
Sony A7R IV5760 n3.0 / 1440 tilting Y 1/8000s 10.0/s n Y
14.
 
Sony A7S II2400 n3.0 / 1229 tilting n 1/8000s 5.0/s n Y
15.
 
Sony A93686 n3.0 / 1440 tilting Y 1/8000s 20.0/s n Y
16.
 
Sony A65002359 n3.0 / 922 tilting Y 1/4000s 11.0/s Y Y
17.
 
Sony A66002359 n3.0 / 922 tilting Y 1/4000s 11.0/s n Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
The OM-5 has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the A7R III 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, both cameras under consideration feature an 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 OM System OM-5 and the Sony A7R 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 OM-5 writes its imaging data to SDXC cards, while the A7R III uses SDXC or Memory Stick PRO Duo cards. The A7R III features dual card slots, which can be very useful in case a memory card fails. In contrast, the OM-5 only has one slot. Both the OM-5 and the A7R III support UHS-II cards, which provide for Ultra High Speed data transfer of up to 312 MB/s (the second slot of the A7R III only offers slower UHS-I transfer rates, though).

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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 OM System OM-5 and Sony Alpha A7R III and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

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Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
OM System OM-5Ystereo / monoY-micro2.0Y-Y
2.
 
Sony A7R IIIYstereo / monoYYmicro3.1YYY
3.
 
Olympus E-M1Ystereo / monoY-micro2.0Y--
4.
 
Olympus E-M5 IIYstereo / monoY-micro2.0Y--
5.
 
Olympus E-M5 IIIYstereo / monoY-micro2.0Y-Y
6.
 
Olympus PEN-FYstereo / mono--micro2.0Y--
7.
 
OM System OM-1Ystereo / monoYYmicro3.0Y-Y
8.
 
Panasonic G90Ystereo / monoYYmicro2.0Y-Y
9.
 
Panasonic GH5 IIYstereo / monoYYfull3.2Y-Y
10.
 
Panasonic GX8Ystereo / monoY-micro2.0YY-
11.
 
Sony A7R IIYstereo / monoYYmicro2.0YY-
12.
 
Sony A7R IIIAYstereo / monoYYmicro3.2YYY
13.
 
Sony A7R IVYstereo / monoYYmicro3.1YYY
14.
 
Sony A7S IIYstereo / monoYYmicro2.0YY-
15.
 
Sony A9Ystereo / monoYYmicro2.0YYY
16.
 
Sony A6500Ystereo / monoY-micro2.0YY-
17.
 
Sony A6600Ystereo / monoYYYES2.0YYY

It is notable that the A7R III has a headphone jack, which makes it possible to attach external headphones and monitor the quality of sound during the recording process. The OM-5 lacks such a headphone port.

Studio photographers will appreciate that the Sony A7R III (unlike the OM-5) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The OM-5 is a recent model that features in the current product line-up of OM System. In contrast, the A7R III has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the A7R III was succeeded by the Sony A7R IV. Further information on the features and operation of the OM-5 and A7R III can be found, respectively, in the OM System OM-5 Manual (free pdf) or the online Sony A7R III Manual.

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Review summary

So how do things add up? Is there a clear favorite between the OM System OM-5 and the Sony A7R III? Which camera is better? A synthesis of the relative strong points of each of the models is listed below.

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Advantages of the OM System OM-5:

  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • More compact: Is smaller (125x85mm vs 127x96mm) and thus needs less room in the bag.
  • Less heavy: Is lighter (by 236g or 36 percent) and hence easier to carry around.
  • More affordable: Was introduced into a lower priced category (63 percent cheaper at launch).
  • More modern: Reflects 5 years of technical progress since the A7R III launch.

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Arguments in favor of the Sony Alpha A7R III:

  • More detail: Has more megapixels (42.2 vs 20.2MP), which boosts linear resolution by 48%.
  • Better sound control: Has a headphone port that enables audio monitoring while recording.
  • More detailed viewfinder: Has higher resolution electronic viewfinder (3686k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.78x vs 0.68x).
  • More detailed LCD: Has a higher resolution rear screen (1440k vs 1040k dots).
  • Longer lasting: Gets more shots (650 versus 310) out of a single battery charge.
  • Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
  • Easier device pairing: Supports NFC for fast wireless image transfer over short distances.
  • Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
  • Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
  • More heavily discounted: Has been around for much longer (launched in October 2017).

If the count of relative strengths (bullet points above) is taken as a measure, the A7R III is the clear winner of the contest (11 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. 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.

OM-5 06:11 A7R III

How about other alternatives? Do the specifications of the OM System OM-5 and the Sony A7R III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera listing whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it says little about, for example, the shooting experience and imaging performance of the OM-5 and the A7R 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 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 (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). 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.

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Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price
Street
Price
1.
 
OM System OM-55/5..4.5/583/1005/54.5/5 Oct 2022 EUR 1 299 amazon.com
2.
 
Sony A7R III..+ +4/590/1004.5/55/5 Oct 2017 EUR 3 499ebay.com
3.
 
Olympus E-M15/5+ +..84/1004.5/54.5/5 Sep 2013 EUR 1 499ebay.com
4.
 
Olympus E-M5 II5/5+ +4.5/581/1005/55/5 Feb 2015 EUR 1 099ebay.com
5.
 
Olympus E-M5 III5/5+5/582/1004.5/54.5/5 Oct 2019 EUR 1 199ebay.com
6.
 
Olympus PEN-F....4/582/1004.5/55/5 Jan 2016 EUR 1 199ebay.com
7.
 
OM System OM-15/5....87/1005/54.5/5 Feb 2022 EUR 2 199ebay.com
8.
 
Panasonic G904.5/5+4.5/583/1004.5/54.5/5 Apr 2019 EUR 999ebay.com
9.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 EUR 1 699 amazon.com
10.
 
Panasonic GX85/5+..82/1004.5/54.5/5 Jul 2015 EUR 1 199ebay.com
11.
 
Sony A7R II5/5+ +5/590/1005/55/5 Jun 2015 EUR 3 499ebay.com
12.
 
Sony A7R IIIA..+ +4/590/1004.5/55/5 Apr 2021 EUR 3 499 amazon.com
13.
 
Sony A7R IV5/5+4.5/591/1004.5/55/5 Jul 2019 EUR 3 999ebay.com
14.
 
Sony A7S II5/5+....4.5/55/5 Sep 2015 EUR 3 399ebay.com
15.
 
Sony A95/5+ +4.8/589/1005/55/5 Apr 2017 EUR 5 299ebay.com
16.
 
Sony A65005/5+ +3.5/585/1004.5/54.5/5 Oct 2016 EUR 1 699ebay.com
17.
 
Sony A66004/5+4/583/1004.5/54/5 Aug 2019 EUR 1 599 amazon.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

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 comparing ratings of very distinct cameras or ones that are far apart in terms of their release date have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.

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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.

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    Specifications: OM System OM-5 vs Sony A7R 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 OM System OM-5 Sony A7R III
    Camera Type Mirrorless system camera Mirrorless system camera
    Camera Lens Micro Four Thirds lenses Sony E mount lenses
    Launch Date October 2022 October 2017
    Launch Price USD 1,199 USD 3,199
    Sensor Specs OM System OM-5 Sony A7R III
    Sensor Technology CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.9 x 24.0 mm
    Sensor Area 224.9 mm2 861.6 mm2
    Sensor Diagonal 21.6 mm 43.2 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 20.2 Megapixels 42.2 Megapixels
    Image Resolution 5184 x 3888 pixels 7952 x 5304 pixels
    Pixel Pitch 3.34 μm 4.52 μm
    Pixel Density 8.96 MP/cm2 4.90 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/30p Video 4K/30p Video
    ISO Setting 200 - 25,600 ISO 100 - 32,000 ISO
    ISO Boost 64 - 25,600 ISO 50 - 102,400 ISO
    Image Processor TruePic IX BIONZ X
    DXO Sensor Quality (score) .. 100
    DXO Color Depth (bits) .. 26.0
    DXO Dynamic Range (EV) .. 14.7
    DXO Low Light (ISO) .. 3523
    Screen Specs OM System OM-5 Sony A7R III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.68x 0.78x
    Viewfinder Resolution 2360k dots 3686k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1040k dots 1440k dots
    LCD Attachment Swivel screen Tilting screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs OM System OM-5 Sony A7R III
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/8000s
    Continuous Shooting 10 shutter flaps/s 10 shutter flaps/s
    Electronic Shutterup to 1/32000sYES
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationIn-body stabilization
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards MS or SDXC cards
    Single or Dual Card Slots Single card slot Dual card slots
    UHS card support UHS-II Single UHS-II
    Connectivity Specs OM System OM-5 Sony A7R III
    External Flash Hotshoe Hotshoe
    Studio Flash no PC Sync PC Sync socket
    USB Connector USB 2.0 USB 3.1
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port 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 Bluetooth built-in Bluetooth built-in
    Body Specs OM System OM-5 Sony A7R III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type OM System BLS-50 Sony NP-FZ100
    Battery Life (CIPA)310 shots per charge650 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 125 x 85 x 50 mm
    (4.9 x 3.3 x 2.0 in)
    127 x 96 x 74 mm
    (5.0 x 3.8 x 2.9 in)
    Camera Weight 414 g (14.6 oz) 650 g (22.9 oz)
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