Side by side comparison and review of Olympus OM-D E-M1 and Nikon Coolpix D3100 + AF-S VR DX 18-55mm. Compare design, sensors, zoom functions, batteries and other key specifications and features to simplify the choice of your perfect digital camera. Our goal is to make it easier for you to decide on the camera that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Product Type | Digital camera - 1080p - mirrorless system | Digital camera - 1080p - SLR with Live View mode, movie recording |
|---|---|---|
| Lens Included | Body only | AF-S VR DX 18-55mm lens |
| Height | 9.35 cm | 9.6 cm |
| Width | 13.04 cm | 12.4 cm |
| Depth | 6.31 cm | 7.45 cm |
| Weight | 443 g | 455 g |
| Body Material | Magnesium alloy | - |
| Enclosure Colour | Silver | Black | Black |
| Protection | Splashproof, freezeproof, dust-resistant | - |
| Optical Zoom | - | 3x |
| SENSOR | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Sensor Resolution | 16.3 Megapixel | 14.2 Megapixel |
|---|---|---|
| Optical Sensor Type | Live MOS | CMOS |
| Total Pixels | 16,800,000 pixels | 14,800,000 pixels |
| Effective Sensor Resolution | 16,300,000 pixels | 14,200,000 pixels |
| Optical Sensor Size | Four Thirds (4/3") | APS-C (23.1 x 15.4 mm) |
| Sensor Dust Reduction | - | Yes |
| Sensor Features | - | Air flow control system, Self Cleaning Sensor Unit |
| Image Stabiliser | Optical (5-axis image sensor shift mechanism) | Optical |
| Built-in Optical Image Stabiliser | Yes | - |
| Sensors | Digital level metre | - |
| PROCESSOR | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Image Processor | TruePic VII | EXPEED 2 |
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| LENS | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Type | - | Zoom lens - 3x zoom - 18 - 55 mm - f/3.5-5.6 G Nikon AF-S DX VR |
|---|---|---|
| Focal Length Equivalent to 35mm Camera | - | 27 - 82.5mm |
| Focus Adjustment | - | Automatic, manual |
| Min Focus Distance | - | 28 cm |
| Max View Angle | - | 76 degree(s) |
| Zoom Adjustment | - | Manual |
| Lens Construction | - | 8 groups / 11 elements |
| Filter Size | - | 52 mm |
| Lens Mounting Type | Micro Four Thirds | Nikon F |
| Features | - | Silent Wave Motor (SWM), aspherical lens, VR (Vibration Reduction) |
| FOCUSING | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Auto Focus | TTL contrast and phase detection | TTL contrast and phase detection |
|---|---|---|
| Auto Focus Points (Zones) Qty | - | 11 |
| AE/AF Control | Face-priority AF, Subject-tracking AF, Eye detection AF | - |
| Face Detection | Yes | Face-priority AF function |
| VIEWFINDER | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Viewfinder Type | Built-in - electronic | Optical - eye-level penta-dach mirror |
|---|---|---|
| Viewfinder Colour Support | Colour | - |
| Viewfinder Resolution | 2,360,000 pixels | - |
| Optical Viewfinder Field Coverage | 100% | 95% |
| Optical Viewfinder Magnification | 1.48x | 0.8x |
| Optical Viewfinder Dioptric Correction Range | -4 to +2 | -1.7 to +0.5 |
| Field of View Crop Factor | 2 | 1.5 |
| EXPOSURE & WHITE BALANCE | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| ISO (Max) | 25600 | 12800 |
|---|---|---|
| Light Sensitivity | ISO 200-25600, ISO auto (200-25600) | ISO 6400, ISO auto, ISO 100-3200, ISO 12800 |
| Exposure Metering | Multi-segment, centre-weighted, spot | Centre-weighted, spot, 3D colour matrix II |
| Exposure Metering Zones | 324 | 420 |
| Exposure Modes | Programme, bulb, automatic, manual, aperture-priority, shutter-priority | Programme, bulb, automatic, manual, aperture-priority, shutter-priority, i-TTL program flash |
| Bracketing Modes | Art Filter bracketing, ISO sensitivity bracketing | - |
| Shooting Programs | Landscape, portrait mode, macro, beach/snow, landscape-portrait, Children, fireworks, 3D image, panorama assist, night scene, sports mode, sunset, candle, high key, night scene with portrait, anti shake, low key, documents, nature macro, e-portrait, fisheye converter, wide converter, macro converter | Landscape, portrait mode, close-up, night portrait, Children, sports mode |
| Special Effects | Black & White, Sepia, soft focus, Water Colour, Diorama, Cross Process, Grainy Film, Light Tone, Pop Art, Pale & Light Colour, pin hole, Gentle Sepia, Dramatic Tone, Key Line, Star Light, Defocus, White Edge | Neutral, Vivid, monochrome, landscape, portrait |
| White Balance | Custom, automatic, presets | Custom, automatic, presets |
| White Balance Presets | Incandescent, fluorescent, cloudy, sunlight, Flash, shade, Underwater, 2000K - 14000K | Incandescent, fluorescent, cloudy, sunlight, Flash, shade |
| Max Shutter Speed | 1/8000 sec | 1/4000 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 1/3 EV steps |
| X-sync Speed | - | 1/200sec |
| Exposure Range | EV 2-20 (ISO 100) | EV 0-20 (ISO 100) |
| DISPLAY | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Type | 3" LCD display | 3" LCD display |
|---|---|---|
| Touch Screen | Yes | - |
| Display Format | 1,037,000 pixels | 230,000 pixels |
| Display Form Factor | Folding | Built-in |
| Display Features | Contrast control, display brightness control, display colour control | Display brightness control |
| FLASH | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Camera Flash | Detachable flash | Pop-up flash |
|---|---|---|
| Guide Number (m / ISO 100) | 7 | 12 |
| Flash Modes | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction | Fill-in mode, rear curtain sync, slow synchro, auto mode, flash OFF mode, red-eye reduction |
| Red-Eye Reduction | Yes | Yes |
| Features | AF illuminator, flash +/- compensation, wireless off-camera control, flash exposure bracketing | AF illuminator, flash +/- compensation, wireless off-camera control |
| VIDEOGRAPHY / CAMCORDER | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Digital Video Format | AVI, MJPEG, H.264, MOV | MOV |
|---|---|---|
| Image Recording Format | JPEG, RAW, RAW + JPEG, MPO | JPEG, RAW + JPEG, NEF (RAW) |
| Max Video Resolution | 1920 x 1080 | 1920 x 1080 |
| Microphone Operation Mode | Stereo | Mono |
| Microphone Features | Wind noise reduction, sensitivity control | - |
| MEMORY | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Memory Card Slot | SD 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, SDXC Memory Card, SDHC 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 2560 x 1920 - 1.1 MB |
4608 x 3072 3456 x 2304 2304 x 1536 |
| 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 MJPEG - 1280 x 720 - 30 fps MJPEG - 640 x 480 - 30 fps |
MOV - 1920 x 1080 - 24 fps MOV - 1280 x 720 - 30 fps MOV - 1280 x 720 - 25 fps MOV - 1280 x 720 - 24 fps MOV - 640 x 424 - 24 fps |
| BATTERY AND CHARGING | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
|---|
| Battery Type | Olympus BLN-1 Lithium Ion | Nikon EN-EL14 Lithium Ion |
|---|---|---|
| Details | Olympus BLN-1 Li-ion rechargeable battery (included) | Nikon EN-EL14 Li-ion rechargeable battery (included) |
| Battery Life | Photo shooting - 250 shots | Photo shooting - 550 shots |
| CONNECTIONS | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Interface | Composite video/audio, HDMI, USB 2.0, Wireless LAN | Composite video/audio, HDMI, USB 2.0 |
|---|---|---|
| Connectivity Features | Remote control via mobile devices, remote live view | - |
| Print Standard | DPOF support, Exif Print support, PRINT Image Matching | Direct print, DPOF support, Exif Print support, PictBridge support |
| Flash Terminal | Hot shoe | Hot shoe |
| Connector Type | USB 2.0 Composite video/audio output HDMI output (19 pin micro HDMI Type D) Microphone Accessory port |
USB 2.0 HDMI output Composite video/audio output |
| FEATURES | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
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| Self-Timer Delay | 2sec, 12sec | 10 sec, 2sec |
|---|---|---|
| Continuous Shooting Speed | 10 frames per second, 6.5 frames per second | 3 frames per second |
| Additional Features | Audio recording, built-in speaker, RGB primary colour filter, auto power save, sharpness control, histogram display, AE lock, AF lock, cropping an image, resizing an image, saturation control, in-camera red-eye fix, interval shooting mode, face detection, Shadow Adjustment Technology, in-camera RAW processing, Full-time Live View, Intelligent AUTO (iAUTO), Eye-Fi Card Ready, Touch Shutter technology, GPS via mobile | Date/time stamp, digital image rotation, camera orientation detection, histogram display, AE lock, AF lock, in-camera red-eye removal, cropping an image, GPS ready, LCD live view mode, highlight point display, Active D-Lighting technology, face detection, built-in help guide, Scene Recognition System (SRS), in-camera RAW processing, text input to Exif header |
| OTHERS | Olympus OM-D E-M1 | Nikon Coolpix D3100 + AF-S VR DX 18-55mm |
|---|
| Included Accessories | Battery charger, body cap, shoulder strap, USB cable | Eyepiece cover, battery charger, dust cap, body cap, lens cap, neck strap, carrying case, eyecup, shoe cap |
|---|---|---|
| Software | Drivers & Utilities, Olympus Viewer 3 | Nikon ViewNX 2, Adobe Photoshop Lightroom 3 |
| Max Operating Temperature | 40 °C | 40 °C |
| Min Operating Temperature | -10 °C | 0 °C |
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