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Olympus OM-D E-M1 Mark III Mirrorless Camera

The Olympus E-M1 Mark III is a 20MP Micro Four Thirds mirrorless camera — with 4K video and in-body stabilization. Check GearFocus for current availability, with buyer protection on every purchase.

Olympus OM-D E-M1 Mark III Mirrorless Camera

Olympus OM-D E-M1 Mark III Mirrorless Camera

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Camera Overview — Olympus E-M1 Mark III

The Olympus OM-D E-M1 Mark III is a Micro Four Thirds mirrorless camera built around a 20MP sensor powered by the TruePic IX image processor. With a native ISO range of 64 to 25600, it offers solid exposure flexibility across a wide range of shooting conditions. The autofocus system combines phase detection, contrast detection, and Eye Detection AF, backed by 121 cross-type phase-detection points, subject tracking, and eye tracking — a capable suite for both stills and moving subjects.

For fast action, the camera supports a maximum burst rate of 60fps, making it a strong choice for sports and wildlife photographers. Video shooters get 4K recording at up to 60fps across 24fps, 30fps, and 60fps frame rate options, with an 8-bit color pipeline and color profiles including Standard, Natural, and Flat. In-body 5-axis image stabilization is complemented by digital IS for additional steadiness.

The magnesium alloy body is weather sealed and measures 134 x 91 x 69 mm at 580g, striking a practical balance between durability and portability. A 3.0-inch vari-angle touchscreen LCD with 1.037M dots resolution pairs with a 2.36M dot EVF refreshing at 60Hz. Connectivity includes Wi-Fi, Bluetooth, Micro HDMI output, and both 3.5mm headphone and microphone jacks.

Storage runs via SD, SDHC, and SDXC cards. The BLH-1 battery is rated for approximately 420 shots per charge.

Key Features — Olympus E-M1 Mark III

20MP MFT CMOS Sensor: 20-megapixel Micro Four Thirds sensor with a 2x crop factor, paired with the TruePic IX processor for fast image processing and a native ISO range of 64–25600.

7.5-Stop 5-Axis IBIS: Five-axis in-body stabilization rated up to 7.5 stops (with compatible lenses via Sync IS), covering pitch, yaw, roll, and lateral shift axes.

60fps Burst Shooting: Maximum burst rate of 60fps with the electronic shutter makes the camera well suited for capturing fast-moving subjects in sports and wildlife photography.

121-Point Phase-Detection AF: 121 cross-type phase-detection points combined with Eye Detection AF and subject tracking deliver reliable focus performance on both static and moving subjects.

4K Video up to 30fps: Records 4K footage at up to 30fps, with additional options at 24fps, and full HD at higher frame rates, using an 8-bit color pipeline and Flat picture profile.

Weather-Sealed Magnesium Body: Dust and splash-resistant magnesium alloy construction at 580g offers field-ready durability without excessive weight.

Camera Specifications — Olympus E-M1 Mark III

Olympus E-M1 Mark III full specifications
SpecDetail
Use CasesWildlife, Sports, Travel, Astrophotography, Macro
TypeMirrorless
SensorMicro Four Thirds (MFT)
Resolution20MP
ProcessorTruePic IX
ISO Range64 – 25600
AF SystemPhase Detection, Contrast Detection, Eye Detection AF
AF Points121 cross-type phase-detection points
Max Photo Resolution5184x3888
Burst Rate60 fps
Max Video Resolution4K
Max Frame Rate30fps

Description — Olympus E-M1 Mark III

The Olympus OM-D E-M1 Mark III is a Micro Four Thirds mirrorless camera centered on a 20MP sensor and the TruePic IX image processor. Its ISO range spans 64 to 25600, giving photographers room to work in varied lighting. The autofocus system draws on phase detection, contrast detection, and Eye Detection AF, with 121 cross-type phase-detection points, plus subject tracking and eye tracking built in.

Burst shooters will appreciate the 60fps maximum frame rate. On the video side, the camera delivers 4K resolution at 24fps, 30fps, and 60fps in 8-bit color, with color profiles including Standard, Natural, and Flat. 5-axis in-body image stabilization is supplemented by digital IS. The magnesium alloy, weather-sealed body weighs 580g and measures 134 x 91 x 69 mm.

The rear 3.0-inch vari-angle touchscreen LCD resolves 1.037M dots, while the EVF provides 2.36M dots at 60Hz. Connectivity covers Wi-Fi, Bluetooth, Micro HDMI, USB, and 3.5mm headphone and microphone jacks. Storage is handled by SD, SDHC, and SDXC cards, and the BLH-1 battery is rated for approximately 420 shots per charge.

A built-in flash and hot shoe round out the feature set.

Pros — Olympus E-M1 Mark III

  • ✓Fast 60fps maximum burst rate suits action and sports shooting
  • ✓121 cross-type phase-detection AF points with Eye Detection and subject tracking for reliable focus performance
  • ✓4K video at up to 60fps with 24fps, 30fps, and 60fps frame rate options

Cons — Olympus E-M1 Mark III

  • ✗Video is limited to 8-bit color depth, which may constrain color grading flexibility for professional video work
  • ✗EVF refresh rate of 60Hz is modest compared to higher-end mirrorless options
  • ✗Single card slot with SD/SDHC/SDXC support only — no backup or overflow recording

Videos — Olympus E-M1 Mark III

Panasonic G9 vs. Olympus OM-D E-M1 Mark III: Which is the king of Micro 43? — DPReview TV

Resources & Downloads — Olympus E-M1 Mark III

Manuals & Guides

Frequently Asked Questions — Olympus E-M1 Mark III

What sensor and processor does the E-M1 Mark III use?+
The camera uses a Micro Four Thirds 20MP sensor paired with the TruePic IX image processor. The native ISO range runs from 64 to 25600.
What autofocus features are available?+
The E-M1 Mark III uses a combined phase detection and contrast detection system with 121 cross-type phase-detection points. It also includes Eye Detection AF, subject tracking, and eye tracking for more demanding focus scenarios.
What video resolutions and frame rates does this camera support?+
The camera records 4K video at frame rates of 24fps, 30fps, and 60fps. Video is captured at 8-bit color depth, and color profile options include Standard, Natural, and Flat.
Is the camera weather sealed, and what is it made of?+
Yes, the body is weather sealed and constructed from magnesium alloy. It measures 134 x 91 x 69 mm and weighs 580g.
What connectivity options does the E-M1 Mark III offer?+
The camera includes Wi-Fi, Bluetooth, a Micro HDMI output, a standard USB connection, and both a 3.5mm headphone jack and a 3.5mm microphone jack. Note that USB-C is not supported.
What display and viewfinder does the camera have?+
The camera features a 3.0-inch vari-angle touchscreen LCD with 1.037M dots resolution. The electronic viewfinder offers 2.36M dots resolution at a 60Hz refresh rate.
How do I check the shutter count on the Olympus OM-D E-M1 Mark III?+
We have a complete guide to checking the shutter count on the Olympus OM-D E-M1 Mark III, including what counts to look for when buying used. Read the full Olympus OM-D E-M1 Mark III shutter count guide.

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