Olympus OM-D E-M10 vs. Pentax K-3 Mark III

Camera Comparison, Reviews and Tests

In depth comparison and review of Olympus OM-D E-M10 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.

Camera Specifications Comparison

Olympus OM-D E-M10 vs. Pentax K-3 Mark III Comparison Chart
DESIGN AND DIMENSIONS Olympus OM-D E-M10 Pentax K-3 Mark III
Product Type Digital camera - 1080p - mirrorless system Digital camera - 4K - SLR with Live View mode, movie recording
Lens Included Body only Body only
Height 8.23 cm 10.35 cm
Width 11.91 cm 13.45 cm
Depth 4.59 cm 7.35 cm
Weight 350 g 735 g
Weight Details - Camera body only: 735 g
Camera with battery and memory card: 820 g
Body Material Magnesium alloy Magnesium alloy
Enclosure Colour Black | Silver Black | Silver
Protection - Weatherproof, dust-resistant
Navigation - GPS receiver
SENSOR Olympus OM-D E-M10 Pentax K-3 Mark III
Sensor Resolution 16.1 Megapixel 25.73 Megapixel
Optical Sensor Type Live MOS CMOS
Total Pixels 17,200,000 pixels 26,780,000 pixels
Effective Sensor Resolution 16,100,000 pixels 25,730,000 pixels
Optical Sensor Size Four Thirds (4/3") APS-C (23.3 x 15.5 mm)
Frame Rate (Max Resolution) - 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
PROCESSOR Olympus OM-D E-M10 Pentax K-3 Mark III
Image Processor TruePic VII -
LENS Olympus OM-D E-M10 Pentax K-3 Mark III
Lens Mounting Type Micro Four Thirds Pentax K
FOCUSING Olympus OM-D E-M10 Pentax K-3 Mark III
Auto Focus TTL contrast detection TTL contrast and phase detection
Auto Focus Points (Zones) Qty 81 101
AE/AF Control Subject-tracking AF, Eye detection AF Auto-area AF, Zone AF, Expanded area AF
Face Detection Eye Detect AF Yes
VIEWFINDER Olympus OM-D E-M10 Pentax K-3 Mark III
Viewfinder Type Built-in - electronic Optical - fixed eye-level pentaprism
Viewfinder Colour Support Colour -
Viewfinder Resolution 1,440,000 pixels -
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 1.15x 1.05x
Optical Viewfinder Dioptric Correction Range -4 to +2 -4 to +1
Viewfinder Information Shutter speed, exposure compensation, AF-in-focus, aperture, white balance, metering system, Exposure Mode, image stabilizer, battery status, AF lock, AF point, electronic level -
Field of View Crop Factor 2 -
Features Viewfinder brightness control, auto eye sensor, colour temperature control Auto eye sensor
EXPOSURE & WHITE BALANCE Olympus OM-D E-M10 Pentax K-3 Mark III
ISO (Max) 25600 1600000
Light Sensitivity ISO auto, ISO 100-25600 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, Dynamic Range Bracketing, ISO sensitivity bracketing Depth of field bracketing, motion bracketing
Shooting Programs Landscape, portrait mode, macro, beach/snow, night portrait, landscape-portrait, Children, fireworks, 3D image, panorama assist, night scene, Underwater, sports mode, sunset, candle, high key, low key, documents, nature macro, e-portrait, fisheye converter, wide converter, macro converter, handheld starlight, digital IS -
Special Effects Sepia, Monotone, Black & White Red filter, Black & White Yellow filter, Vivid, purple, blue, green, Frames, Black & White Orange filter, soft focus, natural, monochrome, Black & White Green filter, Muted, portrait, Water Colour, Diorama, Cross Process, Grainy Film, Light Tone, Pop Art, Pale & Light Colour, pin hole, Gentle Sepia, i-Enhance, Dramatic Tone, Image Overlay, Key Line, Star Light, White Edge 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 - Electronic, mechanical electronically-controlled
Max Shutter Speed 1/4000 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 7 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 EV -3-20 (ISO 100)
DISPLAY Olympus OM-D E-M10 Pentax K-3 Mark III
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 Contrast control Colour control, contrast control, display brightness control, night vision LCD display
FLASH Olympus OM-D E-M10 Pentax K-3 Mark III
Camera Flash Pop-up flash -
Flash Modes Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction -
Red-Eye Reduction Yes -
Features AF illuminator, flash +/- compensation, wireless off-camera control -
VIDEOGRAPHY / CAMCORDER Olympus OM-D E-M10 Pentax K-3 Mark III
Digital Video Format AVI, MJPEG, H.264, MOV H.264, MOV
Image Recording Format JPEG, RAW, RAW + JPEG, MPO JPEG, DNG (RAW), PEF (RAW)
Max Video Resolution 1920 x 1080 3840 x 2160
Microphone Operation Mode Stereo Stereo
Microphone Features Wind noise reduction, sensitivity control Wind noise reduction, sensitivity control
MEMORY Olympus OM-D E-M10 Pentax K-3 Mark III
Memory Card Slot 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 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
Image Storage RAW 4608 x 3456 - 17 MB
JPEG 4608 x 3456 - 7.5 MB
JPEG 4608 x 3456 - 3.5 MB
JPEG 3200 x 2400 - 1.7 MB
JPEG 1280 x 960 - 0.4 MB
RAW 6192 x 4128
JPEG 6192 x 4128
JPEG 4752 x 3168
JPEG 3648 x 2432
JPEG 1920 x 1280
Video Capture MOV - 1920 x 1080 - 30 fps - 24Mbps
MOV - 1920 x 1080 - 30 fps - 16Mbps
MOV - 1280 x 720 - 30 fps - 12Mbps
MOV - 1280 x 720 - 30 fps - 8Mbps
AVI - 1280 x 720 - 30 fps
AVI - 640 x 480 - 30 fps - 16Mbps
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-M10 Pentax K-3 Mark III
Battery Type Olympus BLS-5 Lithium Ion Pentax D-Li90 Lithium Ion
Details Olympus BLS-5 Li-ion rechargeable battery (included) Pentax D-Li90 Li-ion rechargeable battery (included)
Battery Life Photo shooting - 320 shots Photo shooting - 800 shots
Playback - 250 minutes
CONNECTIONS Olympus OM-D E-M10 Pentax K-3 Mark III
Interface Composite video/audio, HDMI, USB 2.0, IEEE 802.11b/g/n 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 DPOF support, Exif Print support, PRINT Image Matching Exif Print support
Computer Connectivity - Mac, Windows
Flash Terminal Hot shoe, PC terminal Hot shoe, PC terminal
Connector Type USB 2.0
Composite video/audio output
HDMI output
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-M10 Pentax K-3 Mark III
Self-Timer Delay 2sec, 12sec 2sec, 12sec
Continuous Shooting Speed 8 frames per second, 3.5 frames per second 2.5 frames per second, 12 frames per second, 7 frames per second
HDR Mode - Auto HDR mode
Additional Features Built-in speaker, RGB primary colour filter, auto power save, sharpness control, camera orientation detection, histogram display, cropping an image, resizing an image, saturation control, in-camera red-eye fix, shadow point display, interval shooting mode, highlight point display, takes photos while film recording, built-in help guide, Shadow Adjustment Technology, in-camera RAW processing, HDR image enhancement technology, Intelligent AUTO (iAUTO), Dual Axis Electronic Level, GPS via mobile 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-M10 Pentax K-3 Mark III
Included Accessories Battery charger, body cap, shoulder strap, USB cable Eyepiece cover, carrying strap, battery charger, body cap, USB cable, eyecup, shoe cap, sync terminal cover
Software Olympus Viewer 3 Digital Camera Utility 5
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature 0 °C -10 °C
Service & Support - Limited warranty - 1 year
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