OM System OM-5 vs Sony A7R III
80 Imaging
64 Features
88 Overall
73


63 Imaging
77 Features
93 Overall
83
OM System OM-5 vs Sony A7R III Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3.00" Fully Articulated Display
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 1/8000s Max Shutter
- 4096 x 2160 video
- Micro Four Thirds Mount
- 414g - 125 x 85 x 50mm
- Revealed October 2022
- Superseded the Olympus E-M5 III
(Full Review)
- 42MP - Full frame Sensor
- 3" Tilting Display
- ISO 100 - 32000 (Raise to 102400)
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Maximum Shutter
- 3840 x 2160 video
- Sony E Mount
- 657g - 127 x 96 x 74mm
- Revealed October 2017
- Previous Model is Sony A7R II
- Refreshed by Sony A7R IV

OM System OM-5 vs Sony A7R III Overview
Below, we are matching up the OM System OM-5 versus Sony A7R III, former is a Advanced Mirrorless while the other is a Pro Mirrorless by rivals Olympus and Sony. There is a substantial difference among the image resolutions of the OM System OM-5 (20MP) and A7R III (42MP) and the OM System OM-5 (Four Thirds) and A7R III (Full frame) feature totally different sensor sizes.

The OM System OM-5 was manufactured 5 years after the A7R III which is a fairly big difference as far as camera tech is concerned. Both the cameras come with the identical body type (SLR-style mirrorless).
Before diving straight into a in depth comparison, below is a short overview of how the OM System OM-5 grades vs the A7R III in relation to portability, imaging, features and an overall mark.

OM System OM-5 vs Sony A7R III Gallery
The following is a sample of the gallery pics for OM System OM-5 & Sony Alpha A7R III. The entire galleries are viewable at OM System OM-5 Gallery & Sony A7R III Gallery.
Reasons to pick OM System OM-5 over the Sony A7R III
OM System OM-5 | A7R III | |||
---|---|---|---|---|
Revealed | October 2022 | ![]() | October 2017 | Newer by 61 months |
Display type | Fully Articulated | ![]() | Tilting | Fully Articulating display |
Selfie screen | ![]() | Easy selfies |
Reasons to pick Sony A7R III over the OM System OM-5
A7R III | OM System OM-5 | |||
---|---|---|---|---|
Display resolution | 1440k | ![]() | 1040k | Sharper display (+400k dot) |
Common features in the OM System OM-5 and Sony A7R III
OM System OM-5 | A7R III | |||
---|---|---|---|---|
Manual focus | ![]() | More exact focusing | ||
Display dimension | 3.00" | ![]() | 3" | Identical display dimensions |
Touch friendly display | ![]() | Easily navigate |
OM System OM-5 vs Sony A7R III Physical Comparison
For those who are going to travel with your camera often, you will have to factor in its weight and measurements. The OM System OM-5 has got external dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") along with a weight of 414 grams (0.91 lbs) and the Sony A7R III has proportions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 657 grams (1.45 lbs).
Examine the OM System OM-5 versus Sony A7R III in our newest Camera & Lens Size Comparison Tool.
Take into consideration, the weight of an ILC will change based on the lens you have at that time. Below is the front view measurements comparison of the OM System OM-5 versus the A7R III.

Factoring in size and weight, the portability score of the OM System OM-5 and A7R III is 80 and 63 respectively.

OM System OM-5 vs Sony A7R III Sensor Comparison
In many cases, it is very tough to see the contrast in sensor dimensions merely by looking through specs. The image here may offer you a far better sense of the sensor dimensions in the OM System OM-5 and A7R III.
As you can plainly see, both cameras posses different megapixel count and different sensor dimensions. The OM System OM-5 because of its smaller sensor will make shooting shallower DOF trickier and the Sony A7R III will render extra detail due to its extra 22MP. Greater resolution can also allow you to crop images somewhat more aggressively. The newer OM System OM-5 will have an edge with regard to sensor technology.

OM System OM-5 vs Sony A7R III Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

OM System OM-5 vs Sony A7R III Specifications
OM System OM-5 | Sony Alpha A7R III | |
---|---|---|
General Information | ||
Manufacturer | Olympus | Sony |
Model type | OM System OM-5 | Sony Alpha A7R III |
Category | Advanced Mirrorless | Pro Mirrorless |
Revealed | 2022-10-26 | 2017-10-25 |
Body design | SLR-style mirrorless | SLR-style mirrorless |
Sensor Information | ||
Chip | - | Bionz X |
Sensor type | CMOS | BSI-CMOS |
Sensor size | Four Thirds | Full frame |
Sensor dimensions | 17.4 x 13mm | 35.9 x 24mm |
Sensor surface area | 226.2mm² | 861.6mm² |
Sensor resolution | 20MP | 42MP |
Anti alias filter | ||
Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 and 16:9 |
Highest Possible resolution | 5184 x 3888 | 7952 x 5304 |
Maximum native ISO | 25600 | 32000 |
Maximum enhanced ISO | - | 102400 |
Lowest native ISO | 200 | 100 |
RAW format | ||
Lowest enhanced ISO | 64 | 50 |
Autofocusing | ||
Manual focusing | ||
Touch to focus | ||
Continuous autofocus | ||
Single autofocus | ||
Autofocus tracking | ||
Selective autofocus | ||
Autofocus center weighted | ||
Autofocus multi area | ||
Autofocus live view | ||
Face detect focus | ||
Contract detect focus | ||
Phase detect focus | ||
Total focus points | 121 | 425 |
Lens | ||
Lens support | Micro Four Thirds | Sony E |
Amount of lenses | 119 | 121 |
Focal length multiplier | 2.1 | 1 |
Screen | ||
Range of display | Fully Articulated | Tilting |
Display diagonal | 3.00 inches | 3 inches |
Resolution of display | 1,040k dot | 1,440k dot |
Selfie friendly | ||
Liveview | ||
Touch capability | ||
Viewfinder Information | ||
Viewfinder type | Electronic | Electronic |
Viewfinder resolution | 2,360k dot | 3,686k dot |
Viewfinder coverage | 100 percent | 100 percent |
Viewfinder magnification | 0.68x | 0.78x |
Features | ||
Min shutter speed | 60 secs | 30 secs |
Max shutter speed | 1/8000 secs | 1/8000 secs |
Max quiet shutter speed | 1/32000 secs | - |
Continuous shutter speed | 10.0 frames/s | 10.0 frames/s |
Shutter priority | ||
Aperture priority | ||
Expose Manually | ||
Exposure compensation | Yes | Yes |
Change white balance | ||
Image stabilization | ||
Built-in flash | ||
Flash distance | no built-in flash | no built-in flash |
Flash settings | Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual | Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync |
External flash | ||
AE bracketing | ||
White balance bracketing | ||
Max flash sync | 1/250 secs | - |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Supported video resolutions | 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM | 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p) |
Maximum video resolution | 4096x2160 | 3840x2160 |
Video format | MPEG-4, H.264 | MPEG-4, AVCHD, XAVC S |
Mic input | ||
Headphone input | ||
Connectivity | ||
Wireless | Built-In | Built-In |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 3.1 Gen 1(5 GBit/sec) |
GPS | None | None |
Physical | ||
Environmental seal | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 414 gr (0.91 pounds) | 657 gr (1.45 pounds) |
Dimensions | 125 x 85 x 50mm (4.9" x 3.3" x 2.0") | 127 x 96 x 74mm (5.0" x 3.8" x 2.9") |
DXO scores | ||
DXO Overall rating | not tested | 100 |
DXO Color Depth rating | not tested | 26.0 |
DXO Dynamic range rating | not tested | 14.7 |
DXO Low light rating | not tested | 3523 |
Other | ||
Battery life | 310 photos | 650 photos |
Battery format | Battery Pack | Battery Pack |
Battery ID | BLS-50 | NP-FZ100 |
Self timer | Yes (2 or 10 secs, custom) | Yes (2 or 10 sec; continuous (3 or 5 exposures)) |
Time lapse recording | ||
Storage media | SD/SDHC/SDXC (UHS-II supported) | Two SD/SDHC/SDXC slots (UHS-II support on one) |
Storage slots | One | Two |
Pricing at release | $1,200 | $2,800 |