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OM System OM-1 vs Sony RX1R III

The OM System OM-1 and the Sony Cyber-shot DSC-RX1R III are two enthusiast cameras that were announced, respectively, in February 2022 and July 2025. The OM-1 is a mirrorless interchangeable lens camera, while the RX1R III is a fixed lens compact. The cameras are based on a Four Thirds (OM-1) and a full frame (RX1R III) sensor. The OM System has a resolution of 20.2 megapixels, whereas the Sony provides 60.2 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-1
versus
Sony RX1R III
OM System OM-1   Sony RX1R III
Mirrorless system camera Fixed lens compact camera
Micro Four Thirds lenses 35mm f/2.0
20.2 MP – Four Thirds sensor 60.2 MP – Full Frame sensor
4K/60p Video 4K/30p Video
ISO 80-25,600 (80 - 102,400) ISO 100-32,000 (50 - 102,400)
Electronic viewfinder (5760k dots) Electronic viewfinder (2360k dots)
3.0" LCD – 1640k dots 3.0" LCD – 2360k dots
Swivel touchscreen Fixed touchscreen
10 shutter flaps per second 5 shutter flaps per second
In-body stabilizationno shake reduction
Weathersealed bodyWeathersealed body
520 shots per battery charge300 shots per battery charge
135 x 92 x 73 mm, 599 g 113 x 68 x 88 mm, 498 g
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Check OM-1 offers at
ebay.com
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Check RX1R III price at
amazon.com

Going beyond this snapshot of core features and characteristics, what are the differences between the OM System OM-1 and the Sony Cyber-shot DSC-RX1R 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-1 and the Sony RX1R III. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth dimensions are rounded to the nearest millimeter.

Size OM System OM-1 vs Sony RX1R III
Compare OM-1 versus RX1R III top
Comparison OM-1 or RX1R III rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony RX1R III is considerably smaller (38 percent) than the OM System OM-1. 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 and possibly misleading, as the RX1R III has a lens built in, whereas the OM-1 is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the OM-1 and their specifications in the Micro Four Thirds Lens Catalog.

Concerning battery life, the OM-1 gets 520 shots out of its OM System BLX-1 battery, while the RX1R III can take 300 images on a single charge of its Sony NP-FW50 power pack. The battery packs of both cameras can be charged via USB, 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 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-1 135 mm 92 mm 73 mm 599 g 520 Y Feb 2022 US$ 2 199ebay.com
2.
 
Sony RX1R III 113 mm 68 mm 88 mm 498 g 300 Y Jul 2025 US$ 5 099 amazon.com
3.
 
Canon R6 Mark II 138 mm 98 mm 88 mm 670 g 450 Y Nov 2022 US$ 2 499 amazon.com
4.
 
Fujifilm GFX 100RF 134 mm 90 mm 77 mm 735 g 820 Y Mar 2025 US$ 4 899 amazon.com
5.
 
Fujifilm X100V 128 mm 75 mm 53 mm 478 g 420 Y Feb 2020 US$ 1 399ebay.com
6.
 
Leica Q3 130 mm 80 mm 93 mm 743 g 350 Y May 2023 US$ 5 999 amazon.com
7.
 
Nikon Zf 144 mm 103 mm 49 mm 710 g 380 Y Sep 2023 US$ 1 999 amazon.com
8.
 
Olympus E-M1 II 134 mm 91 mm 67 mm 574 g 440 Y Sep 2016 US$ 1 999ebay.com
9.
 
Olympus E-M1 III 134 mm 91 mm 69 mm 580 g 420 Y Feb 2020 US$ 1 799ebay.com
10.
 
OM System OM-1 II 135 mm 92 mm 73 mm 599 g 500 Y Jan 2024 US$ 2 399 amazon.com
11.
 
OM System OM-3 139 mm 89 mm 46 mm 496 g 590 Y Feb 2025 US$ 1 999 amazon.com
12.
 
OM System OM-5 125 mm 85 mm 50 mm 414 g 310 Y Oct 2022 US$ 1 199 amazon.com
13.
 
Panasonic G9 II 134 mm 102 mm 90 mm 658 g 390 Y Sep 2023 US$ 1 899 amazon.com
14.
 
Panasonic GH5 139 mm 98 mm 87 mm 725 g 410 Y Jan 2017 US$ 1 999ebay.com
15.
 
Panasonic GH5 II 139 mm 98 mm 87 mm 727 g 400 Y May 2021 US$ 1 699 amazon.com
16.
 
Sigma fp L 113 mm 70 mm 45 mm 427 g 240 Y Mar 2021 US$ 2 499 amazon.com
17.
 
Sony RX1R II 113 mm 65 mm 72 mm 507 g 220 n Oct 2015 US$ 3 299ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. 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. 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 size of the imaging sensor is a crucial determinant 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 are more costly to manufacture and tend to lead to bigger and heavier cameras and lenses.

Of the two cameras under consideration, the OM System OM-1 features a Four Thirds sensor and the Sony RX1R III a full frame sensor. The sensor area in the RX1R III is 278 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-1 has a native 4:3 aspect ratio, while the one in the RX1R III offers a 3:2 aspect.

OM System OM-1 and Sony RX1R III sensor measures

With 60.2MP, the RX1R III offers a higher resolution than the OM-1 (20.2MP), but the RX1R III nevertheless has larger individual pixels (pixel pitch of 3.76μm versus 3.34μm for the OM-1) due to its larger sensor. Moreover, the RX1R III is a much more recent model (by 3 years and 4 months) than the OM-1, and its sensor will have benefitted from technological advances during this time that further 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 RX1R III implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the RX1R III for good quality output (200 dots per inch) amounts to 47.5 x 31.7 inches or 120.7 x 80.5 cm, for very good quality (250 dpi) 38 x 25.3 inches or 96.6 x 64.4 cm, and for excellent quality (300 dpi) 31.7 x 21.1 inches or 80.5 x 53.6 cm. The corresponding values for the OM System OM-1 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.

Unlike the RX1R III, the OM-1 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 OM System OM-1 has a native sensitivity range from ISO 80 to ISO 25600, which can be extended to ISO 80-102400. The corresponding ISO settings for the Sony Cyber-shot DSC-RX1R 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-1 is build around a Stacked BSI-CMOS sensor, while the RX1R 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-1 versus RX1R III MP

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). 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-1 Four Thirds 20.2 5184 38884K/60p23.413.4155377
2.
 
Sony RX1R III Full Frame 60.2 9504 63364K/30p25.414.9341797
3.
 
Canon R6 Mark II Full Frame 24.0 6000 40004k/60p25.414.6315496
4.
 
Fujifilm GFX 100RF Medium Format 101.8 11648 87364K/30p25.915.13805101
5.
 
Fujifilm X100V APS-C 26.0 6240 41604K/30p24.213.6199684
6.
 
Leica Q3 Full Frame 60.3 9528 63288K/30p25.414.7321696
7.
 
Nikon Zf Full Frame 24.3 6048 40244K/60p25.414.7324396
8.
 
Olympus E-M1 II Four Thirds 20.2 5184 38884K/30p23.712.8131280
9.
 
Olympus E-M1 III Four Thirds 20.2 5184 38884K/30p23.313.1135676
10.
 
OM System OM-1 II Four Thirds 20.2 5184 38884K/60p23.413.6174978
11.
 
OM System OM-3 Four Thirds 20.2 5184 38884K/60p23.413.7185278
12.
 
OM System OM-5 Four Thirds 20.2 5184 38884K/30p23.413.4162278
13.
 
Panasonic G9 II Four Thirds 25.0 5776 43365.7K/60p23.413.5171078
14.
 
Panasonic GH5 Four Thirds 20.2 5184 38884K/60p23.913.080777
15.
 
Panasonic GH5 II Four Thirds 20.2 5184 38884K/60p23.713.1113679
16.
 
Sigma fp L Full Frame 60.2 9520 63284K/30p25.314.4300196
17.
 
Sony RX1R II Full Frame 42.2 7952 53041080/60p25.813.9320497
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but can also record movies. The two cameras under consideration both have sensors whose read-out speed is fast enough to capture moving pictures, but the OM-1 provides a higher frame rate than the RX1R III. It can shoot video footage at 4K/60p, while the Sony is limited to 4K/30p.

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the OM-1 offers a substantially higher resolution than the one in the RX1R III (5760k vs 2360k dots). The adjacent table lists some of the other core features of the OM System OM-1 and Sony RX1R 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-15760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
2.
 
Sony RX1R III2360 n3.0 / 2360 fixed Y 1/4000s 5.0/s n n
3.
 
Canon R6 Mark II3690 n3.0 / 1620 swivel Y 1/8000s 12.0/s n Y
4.
 
Fujifilm GFX 100RF5760 n3.2 / 2100 tilting Y 1/4000s 6.0/s n n
5.
 
Fujifilm X100V3690 n3.0 / 1620 tilting Y 1/4000s 11.0/s n n
6.
 
Leica Q35760 n3.0 / 1840 tilting Y 1/2000s 15.0/s n Y
7.
 
Nikon Zf3690 n3.2 / 2100 swivel Y 1/8000s 14.0/s n Y
8.
 
Olympus E-M1 II2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
9.
 
Olympus E-M1 III2360 n3.0 / 1037 swivel Y 1/8000s 18.0/s n Y
10.
 
OM System OM-1 II5760 n3.0 / 1640 swivel Y 1/8000s 10.0/s n Y
11.
 
OM System OM-32360 n3.0 / 1640 swivel Y 1/8000s 6.0/s n Y
12.
 
OM System OM-52360 n3.0 / 1040 swivel Y 1/8000s 10.0/s n Y
13.
 
Panasonic G9 II3680 n3.0 / 1840 swivel Y 1/8000s 10.0/s n Y
14.
 
Panasonic GH53680 n3.2 / 1620 swivel Y 1/8000s 12.0/s n Y
15.
 
Panasonic GH5 II3680 n3.0 / 1840 swivel Y 1/8000s 12.0/s n Y
16.
 
Sigma fp Loptional n3.2 / 2100 fixed Y 1/8000s 10.0/s n n
17.
 
Sony RX1R II2360 n3.0 / 1229 tilting n 1/4000s 5.0/s n n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.
The OM-1 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 RX1R 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-1 and the Sony RX1R III both have an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.

Concerning the storage of imaging data, both the OM-1 and the RX1R III write their files to SDXC cards. The OM-1 features dual card slots, which can be very useful in case a memory card fails. In contrast, the RX1R 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 OM System OM-1 and Sony Cyber-shot DSC-RX1R 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-1Ystereo / monoYYmicro3.0Y-Y
2.
 
Sony RX1R IIIYstereo / monoYYmicro3.2Y-Y
3.
 
Canon R6 Mark IIYstereo / monoYYmicro3.2Y-Y
4.
 
Fujifilm GFX 100RFYstereo / monoYYmicro3.2Y-Y
5.
 
Fujifilm X100VYstereo / monoY-micro3.1Y-Y
6.
 
Leica Q3Ystereo / mono--micro3.1Y-Y
7.
 
Nikon ZfYstereo / monoYYmicro3.2Y-Y
8.
 
Olympus E-M1 IIYstereo / monoYYmicro3.0Y--
9.
 
Olympus E-M1 IIIYstereo / monoYYmicro3.1Y-Y
10.
 
OM System OM-1 IIYstereo / monoYYmicro3.0Y-Y
11.
 
OM System OM-3Ystereo / monoYYmicro3.0Y-Y
12.
 
OM System OM-5Ystereo / monoY-micro2.0Y-Y
13.
 
Panasonic G9 IIYstereo / monoYYfull3.2Y-Y
14.
 
Panasonic GH5Ystereo / monoYYfull3.1Y-Y
15.
 
Panasonic GH5 IIYstereo / monoYYfull3.2Y-Y
16.
 
Sigma fp LYstereo / monoYYmicro3.2Y--
17.
 
Sony RX1R IIYstereo / monoY-micro2.0YY-

Studio photographers will appreciate that the OM System OM-1 (unlike the RX1R III) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

The RX1R III is a recent model that features in the current product line-up of Sony. In contrast, the OM-1 has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the OM-1 was succeeded by the OM System OM-1 II. Further information on the two cameras (e.g. user guides, manuals), as well as related accessories, can be found on the official OM System and Sony websites.

Review summary

So what is the bottom line? Which of the two cameras – the OM System OM-1 or the Sony RX1R III – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

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Arguments in favor of the OM System OM-1:

  • High quality composites: Can combine several shots after pixel-shifting its sensor.
  • Better video: Provides higher movie framerates (4K/60p versus 4K/30p).
  • More detailed viewfinder: Has higher resolution electronic viewfinder (5760k vs 2360k dots).
  • Larger viewfinder image: Features a viewfinder with a higher magnification (0.82x vs 0.7x).
  • 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.
  • 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.
  • More flexible: Accepts interchangeable lenses, so that lens characteristics can be altered.
  • Longer lasting: Can take more shots (520 versus 300) on a single battery charge.
  • Sharper images: Has hand-shake reducing image stabilization built-in.
  • 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 available for much longer (launched in February 2022).

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Advantages of the Sony Cyber-shot DSC-RX1R III:

  • More detail: Has more megapixels (60.2 vs 20.2MP), which boosts linear resolution by 76%.
  • Better image quality: Is equipped with a larger and more technologically advanced sensor.
  • Richer colors: The sensor size advantage translates into images with better, more accurate colors.
  • More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
  • Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
  • More detailed LCD: Has a higher resolution rear screen (2360k vs 1640k dots).
  • Ready to shoot: Has an integrated lens, whereas the OM-1 necessitates an extra lens.
  • More compact: Is smaller (113x68mm vs 135x92mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the OM-1).
  • More modern: Reflects 3 years and 4 months of technical progress since the OM-1 launch.

If the count of relative strengths (bullet points above) is taken as a measure, the OM-1 is the clear winner of the match-up (14 : 10 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 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-1 14:10 RX1R III

How about other alternatives? Do the specifications of the OM System OM-1 and the Sony RX1R III place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best Prime Lens Compact Camera listings 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 remains incomplete and does no justice, for example, to the way the OM-1 or the RX1R III 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.

Expert reviews

This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular 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-15/5....87/1005/54.5/5 Feb 2022 US$ 2 199ebay.com
2.
 
Sony RX1R III............ Jul 2025 US$ 5 099 amazon.com
3.
 
Canon R6 Mark II5/5+ +4.5/591/1004.5/55/5 Nov 2022 US$ 2 499 amazon.com
4.
 
Fujifilm GFX 100RF............ Mar 2025 US$ 4 899 amazon.com
5.
 
Fujifilm X100V5/5+ +4.5/586/1005/54.5/5 Feb 2020 US$ 1 399ebay.com
6.
 
Leica Q35/5..4.5/5....4.5/5 May 2023 US$ 5 999 amazon.com
7.
 
Nikon Zf4.5/5..4.5/590/1004.5/55/5 Sep 2023 US$ 1 999 amazon.com
8.
 
Olympus E-M1 II5/5+ +5/585/1004.5/54.5/5 Sep 2016 US$ 1 999ebay.com
9.
 
Olympus E-M1 III5/5..5/583/1004.5/54/5 Feb 2020 US$ 1 799ebay.com
10.
 
OM System OM-1 II............ Jan 2024 US$ 2 399 amazon.com
11.
 
OM System OM-3......86/100.... Feb 2025 US$ 1 999 amazon.com
12.
 
OM System OM-55/5..4.5/583/1005/54.5/5 Oct 2022 US$ 1 199 amazon.com
13.
 
Panasonic G9 II5/5..4.5/587/100..4.5/5 Sep 2023 US$ 1 899 amazon.com
14.
 
Panasonic GH54.5/5+ +..85/1004.5/55/5 Jan 2017 US$ 1 999ebay.com
15.
 
Panasonic GH5 II4.5/5..4.5/585/1004.5/55/5 May 2021 US$ 1 699 amazon.com
16.
 
Sigma fp L4/5..4/5..4/54/5 Mar 2021 US$ 2 499 amazon.com
17.
 
Sony RX1R II5/5....82/100..4.5/5 Oct 2015 US$ 3 299ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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. 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 are interested in seeing how other cameras pair up, just make your choice using the following search menu. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.

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    Specifications: OM System OM-1 vs Sony RX1R 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-1 Sony RX1R III
    Camera Type Mirrorless system camera Fixed lens compact camera
    Camera Lens Micro Four Thirds lenses 35mm f/2.0
    Launch Date February 2022 July 2025
    Launch Price USD 2,199 USD 5,099
    Sensor Specs OM System OM-1 Sony RX1R III
    Sensor Technology Stacked BSI-CMOS BSI-CMOS
    Sensor Format Four Thirds Sensor Full Frame Sensor
    Sensor Size 17.3 x 13.0 mm 35.7 x 23.8 mm
    Sensor Area 224.9 mm2 849.66 mm2
    Sensor Diagonal 21.6 mm 42.9 mm
    Crop Factor 2.0x 1.0x
    Sensor Resolution 20.2 Megapixels 60.2 Megapixels
    Image Resolution 5184 x 3888 pixels 9504 x 6336 pixels
    Pixel Pitch 3.34 μm 3.76 μm
    Pixel Density 8.96 MP/cm2 7.09 MP/cm2
    Moiré control no AA filter no AA filter
    Movie Capability 4K/60p Video 4K/30p Video
    ISO Setting 80 - 25,600 ISO 100 - 32,000 ISO
    ISO Boost 80 - 102,400 ISO 50 - 102,400 ISO
    Image Processor TruePic X BIONZ XR
    Screen Specs OM System OM-1 Sony RX1R III
    Viewfinder Type Electronic viewfinder Electronic viewfinder
    Viewfinder Field of View 100% 100%
    Viewfinder Magnification 0.82x 0.7x
    Viewfinder Resolution 5760k dots 2360k dots
    LCD Framing Live View Live View
    Rear LCD Size 3.0inch 3.0inch
    LCD Resolution 1640k dots 2360k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen Touchscreen
    Shooting Specs OM System OM-1 Sony RX1R III
    Focus System On-Sensor Phase-detect On-Sensor Phase-detect
    Manual Focusing AidFocus PeakingFocus Peaking
    Max Shutter Speed (mechanical) 1/8000s 1/4000s
    Continuous Shooting 10 shutter flaps/s 5 shutter flaps/s
    Electronic Shutterup to 1/32000sup to 1/8000s
    Time-Lapse PhotographyIntervalometer built-inIntervalometer built-in
    Image StabilizationIn-body stabilizationno handshake reduction
    Fill Flash no On-Board Flash no On-Board Flash
    Storage Medium SDXC cards SDXC cards
    Single or Dual Card Slots Dual card slots Single card slot
    UHS card support Dual UHS-II UHS-II
    Connectivity Specs OM System OM-1 Sony RX1R III
    External Flash Hotshoe Hotshoe
    Studio Flash PC Sync socket no PC Sync
    USB Connector USB 3.0 USB 3.2
    HDMI Port micro HDMI micro HDMI
    Microphone Port External MIC port External MIC port
    Headphone Socket Headphone port Headphone port
    Wifi Support Wifi built-in Wifi built-in
    Bluetooth Support Bluetooth built-in Bluetooth built-in
    Body Specs OM System OM-1 Sony RX1R III
    Environmental SealingWeathersealed bodyWeathersealed body
    Battery Type OM System BLX-1 Sony NP-FW50
    Battery Life (CIPA)520 shots per charge300 shots per charge
    In-Camera Charging USB charging USB charging
    Body Dimensions 135 x 92 x 73 mm
    (5.3 x 3.6 x 2.9 in)
    113 x 68 x 88 mm
    (4.4 x 2.7 x 3.5 in)
    Camera Weight 599 g (21.1 oz) 498 g (17.6 oz)
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