| key specs | 
| Camera Type | DSLR Camera | DSLR Camera | 
| Effective Pixels | 16.1 MP | 24.2 MP | 
| Sensor Type | MOS | CMOS | 
| Display Size | 3 inch | 3 inch | 
| Battery Type | Lithium ion | Lithium ion | 
| Display Type | - | TFT | 
| Touchscreen | - | Yes | 
| general | 
| Brand | Olympus | Canon | 
| Model | OMD EM10 Mark 2 16.1MP DSLR Camera | EOS 77D 24.2MP DSLR Camera | 
| Model Name | OMD EM10 Mark 2 | EOS 77D | 
| Model Number | EM10 Mark 2 | EOS 77D | 
| Series | OMD | - | 
| Color | Black | Black | 
| Minimum Illumination | Available | - | 
| Type | DSLR Camera | DSLR Camera | 
| Effective Pixels | 16.1 MP | 24.2 MP | 
| Dimensions(WxHxD) | 119.5 x 83.1 x 46.7 mm | 131 x 99.9 x 76.2 mm | 
| Weight | 399 GM | 493 GM | 
| Face Detection | Yes | - | 
| Temperature | 0 to 40 | 0 to 40 | 
| Accessory Shoe | Hot Shoe | - | 
| SLR Variant | - | Body With Single Lens Ef-S18-55 Is Stm 16 Gb Sd Card + Camera Bag | 
| Tripod Socket | - | Yes | 
| sensor features | 
| Sensor Type | MOS | CMOS | 
| Sensor Size | 17.3 x 13.0 mm | 22.3 x 14.9 | 
| Sensor Technology | 4/3 Live MOS Sensor | - | 
| ISO Rating | - | ISO 100 - 25600 | 
| Maximum ISO | - | 25600 ISO | 
| lens features | 
| Lens Mount | Micro Four Thirds Mount | Canon EF Mount | 
| Dust Reduction | Yes | Yes | 
| Focal Length | - | 1.6x | 
| Digital Zoom | - | 3x-10x | 
| Compatible Lens | - | Canon EF lenses including EF-S lenses, Excluding EF-M Lenses | 
| viewfinder features | 
| View Finder Type | Eye-level OLED viewfinder | Eye Level Pentamirror Single Lens Reflex Viewfinder | 
| Viewfinder Coverage | 100% | - | 
| Viewfinder Magnification | Approx. 1.08x[1] - 1.23x[2] -1m-1, 50mm lens, Infinity | - | 
| Viewpoint Dioptric Adjustment | -4 ~ +2m-1 | - | 
| Viewfinder Eye Point | 19.2 mm | - | 
| View Finder | - | Yes | 
| focus features | 
| Focus Mode | Single AF S-AF / Continuous AF C-AF / Manual Focus MF / S-AF + MF / AF tracking C-AF + TR | Fixed, Precision Matte | 
| White Balancing | Auto WB, 7 Preset WBs, 4 Capture WBs, Custom WB Kelvin setting | - | 
| Focus Range | - | Focusing Brightness Range EV -3 - 18 with the Center AF Point Supporting f/2.8, One-shot AF, at Room Temperature, ISO 100 | 
| Metering Modes | - | 63-zone TTL Open-aperture Metering using 7560-pixel RGB Plus IR Metering Sensor, Evaluative Metering linked to all AF points, Partial Metering approx. 6.0% of viewfinder at center, Spot Metering approx. 3.5% of Viewfinder at Center, Center-weighted Average Metering | 
| exposure features | 
| Exposure Mode | i Auto, P Program AE Program shift can be performed, A Aperture priority AE, S Shutter priority AE, M Manual, Bulb, Time, Scene select  AE, Art Filter, Underwater wide / macro* , My Set | Automatic | 
| AE Lock/Exposure Lock | Yes | - | 
| Exposure Compensation | Still photo | - | 
| Manual Exposure | Yes | - | 
| shutter features | 
| Shutter Type | Focal-plane shutter | - | 
| Shutter Speed | 1/4000 - 60 sec. | 1/4000 sec | 
| Self-timer | Yes | Yes | 
| Continuous Shots | Approx 8.5 fps | - | 
| flash features | 
| Built-in Flash | Yes | - | 
| External Flash | Yes | - | 
| Flash Modes | Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync.1st curtain, Slow sync.1st curtain, Slow sync.2nd curtain, Manual1/1FULL~1/64 | - | 
| Flash Compensation | Up to 3 EV in 0.3, 0.5, 1 EV steps selectable | - | 
| image features | 
| Image Format | RAW 12-bit lossless compression, JPEG, RAW+JPEG, MPO3D still | JPEG, RAW | 
| Aspect Ratio | 43 Default / 32 / 169 / 11 / 34 | 32, 43, 169, 11 | 
| Gross Pixel | 17.2 MP | - | 
| Image Stabilizer | Yes | - | 
| Image Sizing | 4608 x 3456 | - | 
| Still Image Size | 640 x 480 | - | 
| Live View Shooting | Yes | - | 
| HDR Support | HDR1, HDR2 Painting-like | - | 
| display features | 
| Display Size | 3 inch | 3 inch | 
| Display Resolution | Approx.1040k dots | - | 
| LCD Display | Tilt | - | 
| LCD Display Image Resolution | Approx 1040k dots | - | 
| Display Type | - | TFT | 
| Touch Screen | - | Yes | 
| connectivity features | 
| HDMI | Yes | - | 
| USB | Yes | - | 
| Wifi | Yes | Yes | 
| Wireless Connectivity | Built-in IEEE 8.02.1 b / g / n | - | 
| storage and power features | 
| Card Type | SD Memory Card SDHC, SDXC, UHS-I/II compatible, Eye-Fi Card compatible* | - | 
| Batteries Included | Yes | Yes | 
| Battery Type | Lithium ion | Lithium ion | 
| Battery Life | Approx. 150 minutes* When zoom and other operational functions are not used | - | 
| Power Requirement | - | Rated Voltage 7.2 V DC, Battery Capacity 1040 mAh | 
| audio and video features | 
| Microphone | Stereo | - | 
| Speaker | Mono | - | 
| Video Resolution | 1920 x 1080 | 6000 x 4000 | 
| Video Quality | Full HD | Full HD | 
| Video Format | MOV MPEG-4AVC / H.264 , AVI Motion JPEG | - | 
| modes and functions features | 
| HD Support | - | Yes | 
| Shooting Modes | - | Basic Zone modes Scene Intelligent Auto, Flash Off, Creative Auto, Portrait, Landscape, Close-up, Sports, Special Scene Modes Group Photo, Kids, Food, Candlelight, Night Portrait, Handheld Night Scene, HDR Backlight Control, Creative filters Grainy B/W, Soft focus, Fish-eye effect, Water Painting Effect, Toy Camera Effect, Miniature Effect, HDR Art Standard, HDR Art Vivid, HDR Art Bold, HDR Art Embossed, Creative Zone Modes Program AE, Shutter-priority AE, Aperture-priority AE, Manual Exposure |