Olympus OM-D E-M5 Mark II vs. Sony Alpha7s II ILCE-7SM2

Camera Comparison, Reviews and Tests

Detailed comparison and review of Olympus OM-D E-M5 Mark II and Sony Alpha7s II ILCE-7SM2. With our comprehensive overview, you can simply compare design, sensors, proximity characteristics, memory capacities, but also other key features of both cameras and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the camera that best fits your needs and expectations.

Camera Specifications Comparison

Olympus OM-D E-M5 Mark II vs. Sony Alpha7s II ILCE-7SM2 Comparison Chart
DESIGN AND DIMENSIONS Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Product Type Digital camera - mirrorless system Digital camera - 4K - mirrorless system
Lens Included Body only Body only
Height 8.5 cm 9.57 cm
Width 12.37 cm 12.69 cm
Depth 3.8 cm 6.03 cm
Weight 417 g 584 g
Body Material Magnesium alloy -
Enclosure Colour Black | Silver Black
Protection Weatherproof, splashproof, dust-resistant -
SENSOR Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Sensor Resolution 16.05 Megapixel 12.2 Megapixel
Optical Sensor Type Live MOS Exmor CMOS
Total Pixels 17,200,000 pixels 12,400,000 pixels
Effective Sensor Resolution 16,050,000 pixels 12,200,000 pixels
Optical Sensor Size Four Thirds (4/3") Full Frame (35.8 x 23.9 mm)
Frame Rate (Max Resolution) - 30 fps
Sensor Dust Reduction Yes Yes
Sensor Features Supersonic Wave Filter (SWF) Dust Reduction (image sensor vibration), Anti-Dust coating
Image Stabiliser Optical (5-axis image sensor shift mechanism) Optical (5-axis Steady Shot)
Built-in Optical Image Stabiliser Yes Yes
Sensors Digital level metre -
PROCESSOR Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Image Processor TruePic VII BIONZ X
LENS Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Lens Mounting Type Micro Four Thirds Sony E-mount
FOCUSING Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Auto Focus TTL contrast detection TTL contrast detection
Auto Focus Points (Zones) Qty 81 169
Auto Focus Features Focus Peaking function, Manual Focus Check Live View Focus Peaking function, Manual Focus Check Live View
AE/AF Control Subject-tracking AF, Eye detection AF Flex Focus Point, Face-priority AF, Subject-tracking AF, Eye detection AF
Face Detection Eye Detect AF Face Recognition
VIEWFINDER Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Viewfinder Type Built-in - electronic Electronic - OLED
Viewfinder Colour Support Colour Colour
Viewfinder Diagonal Size - 0.5"
Viewfinder Resolution 2,360,000 pixels 2,359,296 pixels
Optical Viewfinder Field Coverage 100% 100%
Optical Viewfinder Magnification 1.48x 0.78x
Optical Viewfinder Dioptric Correction Range -4 to +2 -4 to +3
Viewfinder Information Shutter speed, exposure compensation, AF-in-focus, aperture, frame counter, white balance, metering system, Exposure Mode, exposure bracketing, battery status, AF lock -
Field of View Crop Factor 2 -
Features - Viewfinder brightness control
EXPOSURE & WHITE BALANCE Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
ISO (Max) 25600 409600
Native ISO 100-25600 -
Extended ISO (Max) - 409600
Extended ISO (Min) - 50
Light Sensitivity ISO 100, ISO auto (100-25600), ISO 200-25600 ISO auto (100-12800), ISO 100-102400, ISO 50-409600
Exposure Metering Multi-segment, centre-weighted, spot Multi-segment, centre-weighted, spot
Exposure Metering Zones 324 1200
Exposure Modes Programme, bulb, automatic, manual, aperture-priority, shutter-priority Programme, bulb, automatic, manual, aperture-priority, shutter-priority
Bracketing Modes Art Filter bracketing, ISO sensitivity bracketing, Shadow Adjustment Technology, Flash Exposure Bracketing Flash Exposure Bracketing
Shooting Programs Landscape, portrait mode, macro, beach/snow, landscape-portrait, Children, fireworks, 3D image, multiple exposure, panorama assist, night scene, panning, sports mode, sunset, candle, high key, night scene with portrait, low key, documents, nature macro, e-portrait, fisheye converter, wide converter, macro converter, handheld starlight, digital IS Landscape, portrait mode, action, macro, night portrait, night scene, sports mode, sunset, handheld twilight, anti-motion blur
Special Effects Art, Black & White, Sepia, Monotone, Black & White Red filter, Black & White Yellow filter, Vivid, purple, blue, green, soft focus, natural, Black & White Green filter, Muted, portrait, Diorama, Cross Process, composite, partial colour, Grainy Film, Light Tone, Pop Art, Pale & Light Colour, pin hole, Gentle Sepia, i-Enhance, Dramatic Tone, Key Line, Vintage Black & White, Sepia, Neutral, Vivid, sunset, soft focus, illustration, landscape, portrait, Water Colour, miniature, clear, deep, autumn leaves, Retro, HDR, partial colour, Toy camera, Posterisation, High contrast monochrome, Pop Colour, Rich-tone monochrome, Soft High-key, Night Scene, Lighting, Standard
White Balance Custom, automatic, presets Custom, automatic, presets
White Balance Presets Fluorescent, sunlight, tungsten light, Flash, shade, overcast, Underwater, 2000K - 14000K Incandescent, cloudy, Flash, daylight, shade, fluorescent light (cool white), fluorescent light (daylight), fluorescent light (warm white), 2500K - 9900K, fluorescent light (daylight white)
Shutter Type Mechanical Mechanical electronically-controlled
Max Shutter Speed 1/8000 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 2, 3, 5 steps in 1/3, 1/2, 1 EV steps 3 or 5 steps
White Balance Bracketing Yes Yes
X-sync Speed 1/250sec, 1/8000 sec 1/250sec
Exposure Range EV -2-20 (ISO 100) EV -3-20 (ISO 100)
DISPLAY Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Type 3" LCD display 3" LCD display
Touch Screen Yes -
Display Format 1,037,000 pixels 1,228,800 pixels
Display Form Factor Folding Folding
Display Features Display brightness control, display colour control, Touch AF Display brightness control
FLASH Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Camera Flash Detachable flash -
Guide Number (m / ISO 100) 12.9 -
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, flash exposure bracketing -
External Flash Name Olympus FL-LM3 -
VIDEOGRAPHY / CAMCORDER Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Digital Video Format AVI, MJPEG, H.264, MOV AVCHD, H.264, XAVC S, AVC
Image Recording Format JPEG, RAW, RAW + JPEG, MPO JPEG, RAW, RAW + JPEG
Max Video Resolution 1920 x 1080 3840 x 2160
Surround Sound - Dolby Digital AC-3 (2 channel) recording
Microphone Operation Mode Stereo Stereo
Microphone Features Wind noise reduction, sensitivity control -
MEMORY Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Memory Card Slot SD card Memory Stick Micro (M2) card, Memory Stick PRO Duo card, 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, Memory Stick PRO Duo, SDXC Memory Card, SDHC Memory Card, Memory Stick PRO-HG Duo, Memory Stick Micro Mark2, SDHC UHS-I Memory Card, SDXC UHS-I Memory Card
Memory Card Included No 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
JPEG 4240 x 2832
JPEG 2768 x 1848
JPEG 2128 x 1416
JPEG 1376 x 920
JPEG 4240 x 2384
JPEG 2768 x 1560
JPEG 2128 x 1200
JPEG 1376 x 776
Video Capture MOV - 1920 x 1080 - 30 fps
MOV - 1920 x 1080 - 25 fps
MOV - 1920 x 1080 - 24 fps
MOV - 1920 x 1080 - 60 fps
MOV - 1920 x 1080 - 50 fps
MOV - 1280 x 720 - 60 fps
MOV - 1280 x 720 - 50 fps
MOV - 1280 x 720 - 30 fps
MOV - 1280 x 720 - 25 fps
MOV - 1280 x 720 - 24 fps
MJPEG - 1280 x 720 - 30 fps
MJPEG - 640 x 480 - 30 fps
XAVC S - 3840 x 2160 - 30 fps
XAVC S - 3840 x 2160 - 24Mbps
XAVC S - 1920 x 1080 - 60 fps
XAVC S - 1920 x 1080 - 30 fps
XAVC S - 1920 x 1080 - 24 fps
XAVC S - 1920 x 1080 - 120 fps
AVCHD - 1920 x 1080 - 60 fps
AVCHD - 1920 x 1080 - 24 fps
H.264 - 1920 x 1080 - 60 fps
H.264 - 1920 x 1080 - 30 fps
H.264 - 1280 x 720 - 30 fps
BATTERY AND CHARGING Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Battery Type Olympus BLN-1 Lithium Ion Sony NP-FW50 Lithium Ion
Details Olympus BLN-1 Li-ion rechargeable battery (included) Sony NP-FW50 Li-ion rechargeable battery - 1080 mAh (included)
Battery Life Photo shooting - 750 shots Photo shooting - 310 shots (EVF on)
Photo shooting - 370 shots (LCD Monitor on)
CONNECTIONS Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Interface Composite video/audio, HDMI, USB 2.0, Wireless LAN HDMI, USB 2.0, IEEE 802.11b/g/n, NFC (Near Field Communication)
Connectivity Features Remote control via mobile devices, remote live view Remote control via mobile devices, remote live view
Print Standard DPOF support, Exif Print support, PictBridge support, PRINT Image Matching DPOF support, Exif Print support, PRINT Image Matching
Flash Terminal Hot shoe Hot shoe
Connector Type USB 2.0
Composite video/audio output
HDMI output (19 pin micro HDMI Type D)
USB 2.0
HDMI output (19 pin micro HDMI Type D)
Microphone (mini-phone stereo 3.5 mm)
Headphones (mini-phone stereo 3.5 mm)
FEATURES Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Self-Timer Delay 2sec, 12sec 10 sec, 2sec, 5 sec
Continuous Shooting Speed 5 frames per second, 10 frames per second 2.5 frames per second, 5 frames per second
HDR Mode Auto HDR mode, HDR post-processing Auto HDR mode
Additional Features Audio recording, built-in speaker, RGB primary colour filter, auto power save, digital noise reduction, sharpness control, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, in-camera red-eye fix, interval shooting mode, contrast control, face detection, digital tele-converter, Shadow Adjustment Technology, in-camera RAW processing, Full-time Live View, Intelligent AUTO (iAUTO), Eye-Fi Card Ready, Touch Shutter technology, GPS via mobile Built-in speaker, RGB primary colour filter, sharpness control, histogram display, AE lock, AF lock, saturation control, Sweep Panorama technology, contrast control, Dynamic Range Optimizer, peripheral illumination correction, Dolby Digital Stereo Creator, Chromatic Aberration Compensation (CAC), x.v.Colour technology, Multi-Frame Noise Reduction, Intelligent AUTO (iAUTO), High ISO NR, high-speed recording, Superior Auto mode, noise reduction over long exposures, BRAVIA Sync function, PhotoTV HD, distortion correction function, Clean HDMI output for 4K movies
OTHERS Olympus OM-D E-M5 Mark II Sony Alpha7s II ILCE-7SM2
Included Accessories Battery charger, body cap, shoulder strap, USB cable Eyepiece cover, battery charger, shoulder strap, AC power adaptor, shoe cap, micro-USB cable, cable protector
Software Drivers & Utilities, Olympus Viewer 3 -
Max Operating Temperature 40 °C 40 °C
Min Operating Temperature -10 °C 0 °C
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