| key specs | 
| Camera Type | DSLR Camera | DSLR Camera | 
| Effective Pixels | 14 MP | 20.4 MP | 
| Sensor Type | CCD | MOS | 
| Display Type | TFT LCD | - | 
| Display Size | 3 inch | 3 inch | 
| Battery Type | Lithium ion | Lithium ion | 
| Touchscreen | - | Yes | 
| general | 
| Brand | Olympus | Olympus | 
| Model | SP 820UZ 14MP DSLR Camera | OMD EM1 Mark 2 20.4MP DSLR Camera | 
| Model Name | SP 820UZ | OMD EM1 Mark 2 | 
| Color | Black | Black | 
| Type | DSLR Camera | DSLR Camera | 
| Effective Pixels | 14 MP | 20.4 MP | 
| Dimensions(WxHxD) | 105.9x 75.9x 73.5 mm | 134.1 x 90.9 x 68.9 mm | 
| Weight | 413 GM | 574 GM | 
| Face Detection | Yes | - | 
| Temperature | 0 to 40 | 0 to 40 | 
| Model Number | - | EM1 Mark 2 | 
| Series | - | OMD | 
| sensor features | 
| Sensor Type | CCD | MOS | 
| Sensor Size | 1/2.3 inch | 17.4 mm  x 13.0 mm | 
| Sensor Technology | - | 4/3 Live MOS Sensor | 
| lens features | 
| Focal Length | 4.3 - 154.8 mm (35 mm Equivalent to 24 - 864mm) | - | 
| Digital Zoom | 4x | - | 
| Aperture Range | F2.9 - F5.7 | - | 
| Manual Focus | Yes | - | 
| Color Filter | Primary RGB Color Filter | - | 
| Lens Mount | - | Micro Four Thirds Mount | 
| Dust Reduction | - | Yes | 
| focus features | 
| Auto Focus | Yes | - | 
| Metering Modes | Multi-segment, Center Weighted, Spot Metering, ESP Light Metering | Digital ESP metering 324-area multi pattern metering, centre-weighted average metering, spot metering[*], spot metering with highlight control, spot metering with shadow control | 
| White Balancing | Auto, Preset Daylight, Tungsten, Fluorescent 1, Sunlight, One Touch WB | Auto WB, 7 Preset WBs, 4 Capture WBs, Custom WBKelvin setting | 
| Other Focus Features | TTL iESP with Contrast Detection | - | 
| Focus Mode | - | Single AF S-AF / Continuous AF C-AF / Manual Focus MF / S-AF + MF / AF tracking C-AF + TR / Preset MF | 
| Focus Points | - | 121-point cross-type phase detection AF and 121-point contrast AF | 
| shutter features | 
| Shutter Speed | 1/2 sec sec | 1/8000 - 60 sec., with selectable EV adjustment steps 1/3, 1/2, 1 | 
| Shutter Type | - | Focal-plane shutter mechanical shutter | 
| Self-timer | - | Yes | 
| flash features | 
| Built-in Flash | Yes | Yes | 
| Flash Modes | Auto, Red-eye Reduction, Fill-in, Off | Redeye, Fill-in, Flash Off, Red-eye Slow sync. 1st curtain, Slow sync. 1st curtain, Slow sync. 2nd curtain, Manual 1/1 FULL ~ 1/64 | 
| External Flash | - | Yes | 
| image features | 
| Image Format | JPEG, RAW, EXIF 2.21, DPOF, DCF | RAW 12-bit lossless compression, JPEG, RAW+JPEG | 
| Aspect Ratio | 40900 PM | 40300 AM | 
| Red Eye Reduction | Yes | - | 
| Image Stabilizer | Yes | Yes | 
| Image Sizing | 4288 x 3216 (14 M) | 5184 x 3888 | 
| Picture Angle | 24 mm Wide-angle | - | 
| Other Image Features | 4288 x 3216 (14 M), 3264 x 2448 (8 M), 2560 x 1920 (5 M), 2048 x 1536 (3 M), 1600 x 1200 (2 M), 1280 x 960 (1 M), 640 x 480 (VGA), 4288 x 2416 (169), 1920 x 1080 | - | 
| Gross Pixel | - | 21.8 MP | 
| Still Image Size | - | 1024 x 768 | 
| HDR Support | - | HDR1, HDR2 painting-like | 
| display features | 
| Display Type | TFT LCD | - | 
| Display Size | 3 inch | 3 inch | 
| Display Resolution | - | Approx. 1037k dots | 
| Touch Screen | - | Yes | 
| LCD Display | - | Vari-Angle | 
| connectivity features | 
| HDMI | Yes | Yes | 
| USB | Yes | Yes | 
| storage and power features | 
| Inbuilt Memory | 14 MB | - | 
| Upgradable Memory | Yes | Yes | 
| Card Type | SD / SDHC / SDXC, Eye-Fi Card Compatible | SD, SDHC, SDXC, Eye-Fi Card compatible | 
| Battery Type | Lithium ion | Lithium ion | 
| Batteries Included | - | Yes | 
| audio and video features | 
| Audio Features | AAC | - | 
| Video Format | MPEG-4 | - | 
| Audio Video Interface | Audio / Video Output | - | 
| Microphone | - | stereo | 
| Speaker | - | Monaural | 
| viewfinder features | 
| View Finder | - | Yes | 
| View Finder Type | - | Eye-level electronic viewfinder | 
| Viewfinder Coverage | - | 100% | 
| Viewfinder Magnification | - | Approx. 1.30x - 1.48x | 
| Viewpoint Dioptric Adjustment | - | -4 ~ +2m-1 | 
| Viewfinder Eye Point | - | 21 mm | 
| exposure features | 
| Exposure Mode | - | iAuto Live Guide can be used, P program AE programme shift can be performed, A aperture priority AE, S Shutter priority AE, M Manual Live Bulb, Live Time and Live Composite are available, Custom 1~3, Art Filter, Underwater wide / Underwater macro to be assigned to the Fn1 button | 
| AE Lock/Exposure Lock | - | Yes | 
| Spot Meter | - | Yes | 
| Manual Exposure | - | Yes | 
| modes and functions features | 
| Drive Modes | - | [Sequential shooting H] approx. 15 fps with selectable 10-15 fps |