In depth comparison and review of Olympus OM-D E-M1 Mark II and Pentax K-3 Mark III. Compare design, sensors, proximity features, memory capacities and other important specifications and features to easily choose the right camera for you. Our goal is to help you uncover differences between the products and find the digital camera that will best fit your needs.
| DESIGN AND DIMENSIONS | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
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| Product Type | Digital camera - 4K - mirrorless system | Digital camera - 4K - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | Body only |
| Height | 9.09 cm | 10.35 cm |
| Width | 13.41 cm | 13.45 cm |
| Depth | 6.89 cm | 7.35 cm |
| Weight | 498 g | 735 g |
| Weight Details | Camera only: 498 g Camera with battery and memory card: 574 g |
Camera body only: 735 g Camera with battery and memory card: 820 g |
| Body Material | Metal | Magnesium alloy |
| Enclosure Colour | Black | Black | Silver |
| Protection | Splashproof, freezeproof, dust-resistant | Weatherproof, dust-resistant |
| Navigation | - | GPS receiver |
| SENSOR | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
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| Sensor Resolution | 20.4 Megapixel | 25.73 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | CMOS |
| Total Pixels | 21,800,000 pixels | 26,780,000 pixels |
| Effective Sensor Resolution | 20,400,000 pixels | 25,730,000 pixels |
| Optical Sensor Size | Four Thirds (4/3") | APS-C (23.3 x 15.5 mm) |
| Frame Rate (Max Resolution) | 24 fps | 30 fps |
| Sensor Dust Reduction | Yes | - |
| Sensor Features | Supersonic Wave Filter (SWF) | Dust Reduction (image sensor vibration), anti-aliasing simulator function |
| Image Stabiliser | Optical (5-axis image sensor shift mechanism) | Optical SR II (5-axis image sensor shift mechanism) |
| Built-in Optical Image Stabiliser | Yes | Yes |
| Sensors | Digital level metre | Digital level metre |
| PROCESSOR | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
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| Image Processor | TruePic VIII | - |
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| LENS | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
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| Lens Mounting Type | Micro Four Thirds | Pentax K |
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| FOCUSING | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
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| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | 121 | 101 |
| Auto Focus Features | Focus Peaking function | - |
| AE/AF Control | Face-priority AF, Eye detection AF | Auto-area AF, Zone AF, Expanded area AF |
| Face Detection | Eye Detect AF, face-priority AF function | Yes |
| VIEWFINDER | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
|---|
| Viewfinder Type | Electronic - LCD | Optical - fixed eye-level pentaprism |
|---|---|---|
| Viewfinder Colour Support | Colour | - |
| Viewfinder Resolution | 2,360,000 pixels | - |
| Optical Viewfinder Field Coverage | 100% | 100% |
| Optical Viewfinder Magnification | - | 1.05x |
| Optical Viewfinder Dioptric Correction Range | -4 to +2 | -4 to +1 |
| Field of View Crop Factor | 2 | - |
| Features | - | Auto eye sensor |
| EXPOSURE & WHITE BALANCE | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
|---|
| ISO (Max) | 25600 | 1600000 |
|---|---|---|
| Native ISO | 200-6400 | - |
| Extended ISO (Max) | 25600 | - |
| Extended ISO (Min) | 64 | - |
| Light Sensitivity | ISO auto (64-6400), ISO 64-25600 | ISO auto, ISO 100-1600000 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Multi-segment, centre-weighted, spot, highlight-weighted |
| Exposure Metering Zones | 324 | - |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, ISO priority, shutter & aperture priority |
| Bracketing Modes | Art Filter bracketing, focus bracketing, ISO sensitivity bracketing, Flash Exposure Bracketing, white balance bracketing | Depth of field bracketing, motion bracketing |
| Special Effects | Monotone, Black & White Red filter, Black & White Yellow filter, Vivid, Custom Effect, Black & White Orange filter, soft focus, natural, Black & White Green filter, Muted, portrait, Water Colour, Diorama, Cross Process, partial colour, Grainy Film, Light Tone, Pop Art, Pale & Light Colour, pin hole, Gentle Sepia, i-Enhance, Dramatic Tone, High Key, Low Key, Key Line, Vintage | Soft, Slim, fisheye, natural, bright, Vibrant, monochrome, Muted, Flat, landscape, portrait, miniature, Cross Process, Retro, Colour Extract, Toy camera, High contrast, Colour Invert, Bleach Bypass, Radiant, Reversal Film, Shading, Tone Expansion, Bold Monochrome, Unicolour Bold, Colour replace, Grainy Monochrome |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, fluorescent, cloudy, sunlight, Flash, shade, Underwater, 2000K - 14000K | Cloudy, tungsten light, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), Color Temperature Enhancement (CTE), fluorescent light (daylight white) |
| Shutter Type | Mechanical | Electronic, mechanical electronically-controlled |
| Max Shutter Speed | 1/32000 sec | 1/8000 sec |
| Min Shutter Speed | 60 sec | 30 sec |
| Exposure Compensation | ±5 EV range, in 1, 1/2 or 1/3 EV steps | ±5 EV range, in 1/2 or 1/3 EV steps |
| Auto Exposure Bracketing | 5 steps in 1/3, 2/3 or 1 EV steps | - |
| White Balance Bracketing | Yes | - |
| X-sync Speed | 1/250sec | 1/200sec |
| Exposure Range | EV 2-20 (ISO 100) | EV -3-20 (ISO 100) |
| DISPLAY | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
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| Type | 3" LCD display | 3.2" LCD display |
|---|---|---|
| Touch Screen | Yes | Yes |
| Display Format | 1,037,000 pixels | 1,620,000 pixels |
| Display Form Factor | Folding | Built-in |
| Display Features | Display brightness control, display colour control | Colour control, contrast control, display brightness control, night vision LCD display |
| FLASH | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
|---|
| Camera Flash | Hot-shoe clip-on flash | - |
|---|---|---|
| Guide Number (m / ISO 100) | 9.1 | - |
| Flash Modes | Fill-in mode, rear curtain sync, red-eye reduction, slow sync | - |
| Red-Eye Reduction | Yes | - |
| Features | Flash +/- compensation | - |
| External Flash Name | Olympus FL-LM3 | - |
| VIDEOGRAPHY / CAMCORDER | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
|---|
| Digital Video Format | MJPEG, H.264 | H.264, MOV |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG | JPEG, DNG (RAW), PEF (RAW) |
| Max Video Resolution | 4096 x 2160 | 3840 x 2160 |
| Microphone Operation Mode | Stereo | Stereo |
| Microphone Features | Wind noise reduction | Wind noise reduction, sensitivity control |
| MEMORY | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
|---|
| Memory Card Slot | Dual SD card | Dual SD card |
|---|---|---|
| Supported Memory Cards | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card | SD Memory Card, SDXC Memory Card, SDHC Memory Card, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card, SDHC UHS-II Memory Card, SDXC UHS-II Memory Card |
| Memory Card Included | No | No |
| Image Storage | 5184 x 3888 | RAW 6192 x 4128 JPEG 6192 x 4128 JPEG 4752 x 3168 JPEG 3648 x 2432 JPEG 1920 x 1280 |
| Video Capture | 4096 x 2160 p - 24 fps - 237Mbps 3840 x 2160 p - 30 fps 3840 x 2160 p - 25 fps 3840 x 2160 p - 24 fps 1920 x 1080 p - 30 fps 1920 x 1080 p - 25 fps 1920 x 1080 p - 24 fps 1920 x 1080 p - 60 fps 1920 x 1080 p - 50 fps 1280 x 720 p - 60 fps 1280 x 720 p - 50 fps 1280 x 720 p - 30 fps 1280 x 720 p - 25 fps 1280 x 720 p - 24 fps |
H.264 - 3840 x 2160 p - 30 fps H.264 - 3840 x 2160 p - 24 fps H.264 - 1920 x 1080 p - 60 fps H.264 - 1920 x 1080 p - 30 fps H.264 - 1920 x 1080 p - 24 fps |
| BATTERY AND CHARGING | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
|---|
| Battery Type | Olympus BLH-1 Lithium Ion | Pentax D-Li90 Lithium Ion |
|---|---|---|
| Details | Olympus BLH-1 Li-ion rechargeable battery (included) | Pentax D-Li90 Li-ion rechargeable battery (included) |
| Battery Life | - | Photo shooting - 800 shots Playback - 250 minutes |
| CONNECTIONS | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
|---|
| Interface | HDMI, USB 3.0, Wireless LAN | HDMI, USB-C, IEEE 802.11b/g/n, Bluetooth 4.2 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, remote live view | Remote control via mobile devices, remote live view, Wireless Image Transfer |
| Print Standard | Exif Print support | Exif Print support |
| Computer Connectivity | - | Mac, Windows |
| Flash Terminal | Hot shoe | Hot shoe, PC terminal |
| Connector Type | USB 3.0 HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) Remote control |
USB 3.2 Gen 1 (USB Type-C) HDMI output (19 pin micro HDMI Type D) Microphone (mini-phone stereo 3.5 mm) Headphones (mini-phone stereo 3.5 mm) Remote control (sub-mini phone 2.5 mm) |
| FEATURES | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
|---|
| Self-Timer Delay | 2sec, 12sec | 2sec, 12sec |
|---|---|---|
| Continuous Shooting Speed | 10 frames per second, 15 frames per second, 60 frames per second, 18 frames per second | 2.5 frames per second, 12 frames per second, 7 frames per second |
| HDR Mode | Auto HDR mode, HDR post-processing | Auto HDR mode |
| Additional Features | Built-in speaker, histogram display, shadow point display, highlight point display, digital tele-converter, in-camera RAW processing, HDR image enhancement technology, Eye-Fi Card Ready, Time-Lapse recording, noise reduction over long exposures, high ISO speed noise reduction, Focus Stacking | Audio recording, date/time stamp, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, cropping an image, resizing an image, interval shooting mode, in-camera film editing, in-camera RAW processing, peripheral illumination correction, horizon correction, NR Slow Shutter, High ISO NR, Lens Distortion Correction, primary colour filter, Automatic composition correction function, colour moire correction, Lateral Chromatic Aberration Correction, diffraction correction, Pixel Shift Resolution technology, colour fringe correction, multiple exposure capture, GPS stamp, D-range correction |
| OTHERS | Olympus OM-D E-M1 Mark II | Pentax K-3 Mark III |
|---|
| Included Accessories | Battery charger, shoulder strap, USB cable, cable clip | Eyepiece cover, carrying strap, battery charger, body cap, USB cable, eyecup, shoe cap, sync terminal cover |
|---|---|---|
| Software | - | Digital Camera Utility 5 |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | -10 °C |
| Service & Support | - | Limited warranty - 1 year |
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