OM System OM-3 Mirrorless Micro Four vs OM System Olympus OM-1 Mark II: Spec Comparison
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The om system om 3 mirrorless micro four vs olympus om 1 mark ii comparison highlights two distinct Micro Four Thirds options. Both share a 20MP stacked BSI Live MOS sensor for high resolution and low noise. The main difference lies in their design and features. The OM-3 comes as a kit with a 12-45mm lens and emphasizes handheld stabilization. The OM-1 Mark II is a body-only option with advanced autofocus, faster processing, and robust weather sealing for extreme conditions.
Key differences
| Aspect | OM System OM-3 Micro Four Thirds Kit | OM SYSTEM OM-1 Mark II Micro Four Thirds Camera |
|---|---|---|
| Configuration | Lens Kit | Body Only |
| Included Lens | M.Zuiko Digital ED 12-45mm F4.0 PRO | Not listed |
| Autofocus System | Not listed | 1,053 point, all cross-type |
| Image Processor | Not listed | TruePic X |
| Color | Silver | Black |
| Weight | 3.34 pounds | 1.1 pounds |
Which one should you choose?
Choose OM System OM-3 Micro Four Thirds Kit if
- You want a complete setup with a 12-45mm lens included.
- You prioritize in-body image stabilization up to 7.5 EV steps for handheld shooting.
- You prefer a silver finish for your camera body.
Choose OM SYSTEM OM-1 Mark II Micro Four Thirds Camera if
- You need advanced autofocus with 1,053 cross-type points for precise focusing.
- You require weather sealing rated IP53 for dustproof and freeze-proof performance.
- You want a lighter body-only option with faster TruePic X processing.
Verdict: Choose the OM-3 if you need a ready-to-shoot kit with a versatile lens and strong handheld stabilization. Pick the OM-1 Mark II if you prioritize advanced autofocus, faster processing, and rugged weather sealing for challenging environments. Both deliver high-resolution images from their 20MP sensors.
OM-3 vs OM-1 Mark II Specs
Sensor resolution
Both cameras feature a 20MP stacked BSI Live MOS sensor. This shared specification means you get similar image resolution and low noise performance from both the OM-3 and the OM-1 Mark II. The sensor format is Micro Four Thirds for each model. This common ground ensures that image quality at the base level is comparable. You do not need to choose between different sensor sizes or resolutions here, as the core imaging engine is identical in megapixel count and technology type for both options.
Image stabilization
The OM-3 offers in-body image stabilization rated at up to 7.5 EV steps. This helps you capture sharp images in low light or when shooting handheld. The OM-1 Mark II data does not explicitly list its IBIS rating in the provided specifications. If you prioritize a clearly stated high-level stabilization number for handheld shooting, the OM-3 provides that specific metric. This makes the OM-3 a clearer choice if you rely on in-body stabilization specs for your workflow.
Autofocus system
The OM-1 Mark II includes a Cross Quad Pixel AF system with 1,053 points, all of which are cross-type. This provides high-precision focusing across 100% of the frame. The OM-3 data does not specify its autofocus point count or type. If fast and precise subject tracking is critical for your photography, the OM-1 Mark II offers detailed autofocus specifications that the OM-3 lacks in this data set. You should pick the OM-1 Mark II if you need verified high-point AF coverage.
Build and durability
The OM-1 Mark II features an IP53 rating, making it dustproof, splashproof, and freeze-proof down to -10℃. This allows for use in extreme conditions. The OM-3 data does not list an IP rating or weather sealing specification. If you shoot in rain, dust, or cold environments, the OM-1 Mark II provides explicit protection details. You should choose the OM-1 Mark II if you need confirmed weather sealing for outdoor or harsh environment photography.
Included lens
The OM-3 is available as a kit with the M.Zuiko Digital ED 12-45mm F4.0 PRO lens. This gives you a starting focal length range right out of the box. The OM-1 Mark II is listed as a body-only option in its variations, though kit options may exist. If you want a bundled lens for immediate use, the OM-3 kit provides that convenience. You should select the OM-3 if you prefer having a compatible lens included with your purchase.
Choose the right OM System camera for you
Travelers wanting a lightweight body
The OM-1 Mark II weighs just 1.1 pounds. It is significantly lighter than the OM-3 kit at 3.34 pounds. This makes it easier to carry for long periods. Its compact dimensions of 7.6 inches in length also help. You get a robust camera without the bulk of a lens kit attached.
Shooters needing integrated lens kit
The OM-3 comes with a 12-45mm F4.0 PRO lens included. This kit configuration is ready to use right out of the box. It offers a versatile focal range for general photography. You avoid the need to purchase a separate lens immediately. The 7.5 EV image stabilization helps capture sharp images in various lighting conditions.
Photographers in extreme weather
The OM-1 Mark II features IP53 weather sealing. It is dustproof, splashproof, and freeze-proof down to -10℃. This rating ensures reliability in harsh environments. The OM-3 data does not specify this level of weather protection. If you shoot in rain or cold, this camera offers better durability.
Users prioritizing fast autofocus
The OM-1 Mark II uses Cross Quad Pixel AF with 1,053 cross-type points. This system covers 100% of the frame for high-precision focusing. The TruePic X engine provides 3x faster processing power. The OM-3 data does not list specific autofocus point counts or processing speed. This makes the OM-1 Mark II better for tracking moving subjects.
The products compared
OM System OM-3 Micro Four Thirds Kit
Best for: handheld shooters needing a lens kit
- Sensor Format
- Micro Four Thirds
- Sensor Resolution
- 20MP
- Image Stabilization
- IBIS up to 7.5 EV Steps
- Configuration
- Lens Kit
- Color
- Silver
- Dimensions
- 11.3 × 7 × 5.25 inches
View on Amazon: OM System OM-3 Micro Four Thirds Kit Affiliate link
The OM System OM-3 is a Micro Four Thirds camera with a 20MP stacked BSI Live MOS sensor. It offers up to 7.5 EV steps of image stabilization. The kit includes an M.Zuiko Digital ED 12-45mm F4.0 PRO lens. You get Live ND and Live GND filters for daylight long exposures. This setup suits you if you need sharp images with low noise and reliable handheld stability.
Pros
- 20MP stacked BSI Live MOS sensor for high resolution and vivid color
- IBIS up to 7.5 EV steps for handheld shooting
- Includes M.Zuiko Digital ED 12-45mm F4.0 PRO lens
- Live ND and Live GND filters for daylight long exposures
- Super Sonic Wave Filter keeps internals clean
Cons
- 20MP resolution is lower than the 20MP BS sensor in the OM-1 Mark II
- Heavier at 3.34 pounds compared to typical body-only weights
- Larger dimensions (7 x 5.25 x 11.3 inches) reduce portability
Good fit if
- You want a complete kit with a quality lens
- You need strong image stabilization for handheld shots
- You shoot in daylight and use ND filters
Skip if
- You need the highest resolution sensor available
- You prefer a lighter, more compact body
- You do not need a bundled lens
Verdict: The OM System OM-3 20MP Micro Four Thirds delivers solid stabilization and a versatile lens kit. It fits you if you prioritize handheld shooting and daylight filter effects over maximum resolution.
OM SYSTEM OM-1 Mark II Micro Four Thirds Camera
Best for: extreme weather shooting and precision AF
- Sensor Format
- Micro Four Thirds
- Sensor Resolution
- 20 MP
- Autofocus System
- 1,053 point, all cross-type
- Image Processor
- TruePic X
- Color
- Black
- Dimensions
- 7.6 × 7.2 × 5.63 inches
View on Amazon: OM SYSTEM OM-1 Mark II Micro Four Thirds Camera Affiliate link
The OM System OM-1 Mark II is a Micro Four Thirds camera with a 20MP BSI Stacked sensor and TruePic X processor. It features 1,053 cross-type autofocus points and computational photography tools like Handheld High Res Shot. This weather-sealed body handles extreme conditions. It suits photographers who need robust build quality and high-precision focusing in challenging environments.
Pros
- 1,053 point all cross-type autofocus system
- 20MP BSI Stacked Live MOS sensor
- IP53 weather sealing down to -10℃
- Computational photography modes like Live ND
Cons
- 20MP resolution is lower than newer models
- Larger and heavier body design
- No mention of Bluetooth connectivity
Good fit if
- You shoot in dust, splash, or freeze conditions
- You need high-precision cross-type autofocus
- You rely on computational photography features
Skip if
- You require higher resolution than 20MP
- You prefer a lighter and smaller camera
- You need modern wireless connectivity options
Verdict: The OM System OM-1 Mark II is a rugged tool for photographers who prioritize weather sealing and autofocus precision over high resolution or compact size.
Specifications side by side
| Spec | OM System OM-3 Micro Four Thirds Kit | OM SYSTEM OM-1 Mark II Micro Four Thirds Camera |
|---|---|---|
| Sensor Format | Micro Four Thirds | Micro Four Thirds |
| Sensor Resolution | 20MP | 20 MP |
| Autofocus System | not stated | 1,053 point, all cross-type |
| Image Stabilization | IBIS up to 7.5 EV Steps | not stated |
| Image Processor | not stated | TruePic X |
| Configuration | Lens Kit | not stated |
| Color | Silver | Black |
| Dimensions | 11.3 × 7 × 5.25 inches | 7.6 × 7.2 × 5.63 inches |
| Weight | 3.34 pounds | 1.1 pounds |
| Model | OM-3 | V210040BU000 |
Frequently asked questions
Is the OM System OM-3 suitable for handheld shooting?
Yes, the OM System OM-3 is designed for handheld shooters. It comes with a lens kit that provides versatility in daylight scenarios. The camera includes solid stabilization features to help you capture sharp images without a tripod. This makes it a practical choice if you prioritize ease of use in various lighting conditions.
Which camera is better for extreme weather conditions?
The OM System OM-1 Mark II is built for extreme weather shooting. It offers rugged construction and precision autofocus performance in challenging environments. If you need a durable tool for outdoor photography in difficult conditions, this model is the more appropriate selection compared to the standard OM-3 kit.
What is the weight difference between the OM-3 and OM-1 Mark II?
The OM-1 Mark II is significantly lighter than the OM-3. The OM-1 Mark II weighs 1.1 pounds, while the OM-3 kit weighs 3.34 pounds. This substantial difference makes the OM-1 Mark II easier to carry for long periods, whereas the OM-3 includes additional lens weight in its total package.
Do both cameras use the same sensor type?
Yes, both cameras share a 20MP stacked BSI Live MOS sensor. This means you get similar image resolution and low noise performance from both models. The sensor format is Micro Four Thirds for both devices, ensuring consistent image quality characteristics across the two different body designs and feature sets.
Which camera is more compact for travel?
The OM-1 Mark II is more compact for travel. Its dimensions are 7.2 inches wide, 5.63 inches high, and 7.6 inches long. In comparison, the OM-3 kit is larger at 7 inches wide, 5.25 inches high, and 11.3 inches long. The OM-1 Mark II offers a smaller footprint for portability.
What color options are available for these models?
The OM System OM-3 Micro Four Thirds Kit is available in Silver. The OM System OM-1 Mark II is offered in Black. These color choices allow you to select a body style that matches your personal preference or aesthetic needs while using the same underlying Micro Four Thirds technology.