OM System OM-1 vs Olympus E-M1 III
65 Imaging
63 Features
96 Overall
76


67 Imaging
61 Features
96 Overall
75
OM System OM-1 vs Olympus E-M1 III Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3.00" Fully Articulated Screen
- ISO 200 - 25600 (Push to 102400)
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Maximum Shutter
- 4096 x 2160 video
- Micro Four Thirds Mount
- 599g - 135 x 92 x 73mm
- Released February 2022
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Fully Articulated Display
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Max Shutter
- 4096 x 2160 video
- Micro Four Thirds Mount
- 580g - 134 x 91 x 69mm
- Launched February 2020
- Succeeded the Olympus E-M1 II

OM System OM-1 vs Olympus E-M1 III Overview
In this write-up, we are looking at the OM System OM-1 vs Olympus E-M1 III, both Pro Mirrorless digital cameras and they are both produced by Olympus. The resolution of the OM System OM-1 (20MP) and the E-M1 III (20MP) is fairly well matched and they possess the same exact sensor sizing (Four Thirds).

The OM System OM-1 was revealed 2 years later than the E-M1 III and that is quite a sizable gap as far as technology is concerned. Both the cameras offer the identical body type (SLR-style mirrorless).
Before going straight into a in depth comparison, below is a brief synopsis of how the OM System OM-1 matches up versus the E-M1 III with regard to portability, imaging, features and an overall rating.

OM System OM-1 vs Olympus E-M1 III Gallery
The following is a sample of the gallery pictures for OM System OM-1 and Olympus OM-D E-M1 Mark III. The full galleries are available at OM System OM-1 Gallery and Olympus E-M1 III Gallery.
Reasons to pick OM System OM-1 over the Olympus E-M1 III
OM System OM-1 | E-M1 III | |||
---|---|---|---|---|
Launched | February 2022 | ![]() | February 2020 | Fresher by 25 months |
Display resolution | 1620k | ![]() | 1037k | Clearer display (+583k dot) |
Reasons to pick Olympus E-M1 III over the OM System OM-1
E-M1 III | OM System OM-1 |
---|
Common features in the OM System OM-1 and Olympus E-M1 III
OM System OM-1 | E-M1 III | |||
---|---|---|---|---|
Manual focus | ![]() | Dial precise focus | ||
Display type | Fully Articulated | ![]() | Fully Articulated | Fully Articulated display |
Display sizing | 3.00" | ![]() | 3" | Equivalent display measurement |
Selfie screen | ![]() | Both good for selfies | ||
Touch display | ![]() | Easily navigate |
OM System OM-1 vs Olympus E-M1 III Physical Comparison
When you are intending to carry your camera, you're going to have to factor its weight and volume. The OM System OM-1 has got physical dimensions of 135mm x 92mm x 73mm (5.3" x 3.6" x 2.9") with a weight of 599 grams (1.32 lbs) and the Olympus E-M1 III has sizing of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs).
Examine the OM System OM-1 vs Olympus E-M1 III in the latest Camera and Lens Size Comparison Tool.
Don't forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you have attached at that moment. Here is the front view measurement comparison of the OM System OM-1 compared to the E-M1 III.

Considering dimensions and weight, the portability grade of the OM System OM-1 and E-M1 III is 65 and 67 respectively.

OM System OM-1 vs Olympus E-M1 III Sensor Comparison
Typically, it's hard to visualize the contrast between sensor sizing simply by checking technical specs. The graphic underneath might offer you a better sense of the sensor dimensions in the OM System OM-1 and E-M1 III.
As you have seen, both of those cameras enjoy the same exact sensor sizing and the identical MP and you should expect similar quality of pictures although you should really take the production date of the products into consideration. The newer OM System OM-1 should have an advantage with regard to sensor innovation.

OM System OM-1 vs Olympus E-M1 III Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

OM System OM-1 vs Olympus E-M1 III Specifications
OM System OM-1 | Olympus OM-D E-M1 Mark III | |
---|---|---|
General Information | ||
Brand | Olympus | Olympus |
Model | OM System OM-1 | Olympus OM-D E-M1 Mark III |
Type | Pro Mirrorless | Pro Mirrorless |
Released | 2022-02-15 | 2020-02-11 |
Physical type | SLR-style mirrorless | SLR-style mirrorless |
Sensor Information | ||
Chip | - | TruePic IX |
Sensor type | Stacked BSI Live MOS Sensor | CMOS |
Sensor size | Four Thirds | Four Thirds |
Sensor dimensions | 17.4 x 13mm | 17.4 x 13mm |
Sensor surface area | 226.2mm² | 226.2mm² |
Sensor resolution | 20 megapixels | 20 megapixels |
Anti aliasing filter | ||
Aspect ratio | 4:3 | 4:3 |
Maximum resolution | 5184 x 3888 | 5184 x 3888 |
Maximum native ISO | 25600 | 25600 |
Maximum boosted ISO | 102400 | - |
Lowest native ISO | 200 | 200 |
RAW images | ||
Lowest boosted ISO | 80 | 64 |
Autofocusing | ||
Focus manually | ||
Autofocus touch | ||
Autofocus continuous | ||
Autofocus single | ||
Tracking autofocus | ||
Selective autofocus | ||
Center weighted autofocus | ||
Multi area autofocus | ||
Autofocus live view | ||
Face detection autofocus | ||
Contract detection autofocus | ||
Phase detection autofocus | ||
Number of focus points | 1053 | 121 |
Cross focus points | 1053 | 121 |
Lens | ||
Lens mounting type | Micro Four Thirds | Micro Four Thirds |
Amount of lenses | 118 | 107 |
Crop factor | 2.1 | 2.1 |
Screen | ||
Type of screen | Fully Articulated | Fully Articulated |
Screen size | 3.00 inches | 3 inches |
Screen resolution | 1,620 thousand dots | 1,037 thousand dots |
Selfie friendly | ||
Liveview | ||
Touch operation | ||
Viewfinder Information | ||
Viewfinder type | Electronic | Electronic |
Viewfinder resolution | 5,760 thousand dots | 2,360 thousand dots |
Viewfinder coverage | 100% | 100% |
Viewfinder magnification | 0.83x | 0.74x |
Features | ||
Lowest shutter speed | 60s | 60s |
Highest shutter speed | 1/8000s | 1/8000s |
Highest silent shutter speed | 1/32000s | 1/32000s |
Continuous shooting rate | 10.0 frames per second | 60.0 frames per second |
Shutter priority | ||
Aperture priority | ||
Manual mode | ||
Exposure compensation | Yes | Yes |
Set white balance | ||
Image stabilization | ||
Inbuilt flash | ||
Flash range | no built-in flash | no built-in flash |
Flash settings | Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual | Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual |
Hot shoe | ||
AE bracketing | ||
White balance bracketing | ||
Highest flash synchronize | 1/250s | 1/250s |
Exposure | ||
Multisegment | ||
Average | ||
Spot | ||
Partial | ||
AF area | ||
Center weighted | ||
Video features | ||
Supported video resolutions | - | 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 25p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 23.98p / 102 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 60p, MOV, H.264, Linear PCM1920 x 1080 @ 50p, MOV, H.264, Linear PCM1920 x 1080 @ 30p, MOV, H.264, Linear PCM1920 x 1080 @ 25p, MOV, H.264, Linear PCM1920 x 1080 @ 23.98p, MOV, H.264, Linear PCM |
Maximum video resolution | 4096x2160 | 4096x2160 |
Video file format | MPEG-4, H.264, H.265, HEVC | MPEG-4, H.264 |
Mic port | ||
Headphone port | ||
Connectivity | ||
Wireless | Built-In | Built-In |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 3.1 Gen 1 (5 GBit/sec) | USB 3.1 Gen 1 (5 GBit/sec) |
GPS | None | None |
Physical | ||
Environment sealing | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 599 grams (1.32 lb) | 580 grams (1.28 lb) |
Dimensions | 135 x 92 x 73mm (5.3" x 3.6" x 2.9") | 134 x 91 x 69mm (5.3" x 3.6" x 2.7") |
DXO scores | ||
DXO All around score | not tested | not tested |
DXO Color Depth score | not tested | not tested |
DXO Dynamic range score | not tested | not tested |
DXO Low light score | not tested | not tested |
Other | ||
Battery life | 520 shots | 420 shots |
Battery type | Battery Pack | Battery Pack |
Battery model | BLX-1 | BLH-1 |
Self timer | Yes (2 or 12 secs, custom) | Yes (2 or 12 secs, custom) |
Time lapse shooting | ||
Storage type | Dual SD/SDHC/SDXC slots (UHS-II on first slot) | Dual SD/SDHC/SDXC slots (UHS-II on first slot) |
Card slots | Two | Two |
Pricing at launch | $2,199 | $1,800 |