| key specs |
| Camera Type | DSLR Camera | Digital Camera |
| Effective Pixels | 16.2 MP | 20 MP |
| Sensor Type | CMOS | CMOS |
| Display Size | 3 inch | 3 inch |
| Battery Type | Lithium ion | Lithium ion |
| Display Type | - | TFT LCD |
| general |
| Brand | Nikon | Nikon |
| Model | D5100 16.2MP DSLR Camera | CoolPix A900 20MP Digital Camera |
| Model Name | D5100 | CoolPix A900 |
| Color | Black | Black |
| Type | DSLR Camera | Digital Camera |
| Effective Pixels | 16.2 MP | 20 MP |
| Tripod Socket | Yes | - |
| Dimensions(WxHxD) | 7.9 x 12.8 x 9.7 cm | 18.2 x 17 x 15.2 cm |
| Face Detection | Yes | - |
| Lens Attachment | Body Only | - |
| Temperature | 0 to 40 | 0 to 40 |
| Model Number | - | A900 |
| Series | - | CoolPix |
| Weight | - | 298 GM |
| sensor features |
| Sensor Type | CMOS | CMOS |
| Maximum ISO | 6400 ISO | - |
| Maximum FPS | 4 | - |
| Sensor Technology | CMOS | - |
| Sensor Size | - | 1/2.3 inch |
| ISO Rating | - | ISO 80 - 1600 |
| lens features |
| Manual Focus | Yes | - |
| Focal Length | - | 4.3 to 151 mm Angle of View Equivalent of 24 x 840 mm Lens in 35 mm 135 Format |
| Digital Zoom | - | 4x |
| Optical Zoom | - | 35x |
| viewfinder features |
| View Finder | Yes | - |
| focus features |
| Auto Focus | Yes | - |
| White Balancing | Auto TTL white-balance with main image sensor and 420-pixel RGB sensor, Incandescent, Fluorescent 7 types , Direct, Sunlight, Flash, Cloudy, Shade, preset manual. | - |
| Focus Mode | - | Contrast Detect Auto Focus |
| Focus Range | - | W 50 cm 1 ft 8 inch to Infinity, T Approx 2.0 m 6 ft 7 inch to Infinity, Macromode Approx 1 cm 0.4 inch to Infinity Wide-angle Position |
| Metering Modes | - | Matrix, Center-weighted, Spot |
| shutter features |
| Self-timer | Yes | Yes |
| Continuous Shots | Continuous shooting mode Approx. 4fps | - |
| flash features |
| Built-in Flash | Yes | Yes |
| Flash Modes | Fill-flash, slow sync, auto slow sync, red-eye reduction, auto with red-eye reduction, slow sync with red-eye reduction, auto, slow sync with red-eye reduction, rear-curtain sync, rear-curtain with slow sync. | - |
| image features |
| Image Format | NEF 12 or 14-bit lossless compressed or compressed RAW, JPEG Baseline-compliant | - |
| Red Eye Reduction | Yes | - |
| Image Sizing | 4928 x 3264 L | - |
| Picture Angle | Approx 1.5x lens focal length | - |
| display features |
| Display Size | 3 inch | 3 inch |
| LCD Display Image Resolution | 921000 dots | - |
| LCD Display Video Resolution | 1920 x 1080 | - |
| Display Type | - | TFT LCD |
| connectivity features |
| USB | 2 | - |
| Wifi | No | - |
| storage and power features |
| Upgradable Memory | Yes | - |
| Card Type | SD / SDHC / SDXC | - |
| Power Supply | EH-5a AC Adapter | - |
| Battery Type | Lithium ion | Lithium ion |
| Batteries Included | - | Yes |
| audio and video features |
| Video Format | MOV movie H.264, MPEG-4 AVC compression format with Linear PCM sound Stereo sound with external microphone | - |
| Audio Video Interface | Audio / Video Output | - |
| Video Resolution | - | 5184 x 3888 Pixels, 2272 x 1704 Pixels, 1600 x 1200 Pixels, 3888 x 3888 Pixels, 3648 x 2736 Pixels, 640 x 480 Pixels, 5184 x 2920 Pixels |
| Video Quality | - | UHD |
| modes and functions features |
| Delete Function | Yes | - |
| Shooting Modes | Single frame, Continuous 4fps, Self-timer, Delayed remote, Quick-response remote, Silent shuttle release, D-Movie. | - |
| HD Support | - | Yes |
| exposure features |
| Exposure Mode | - | Programmed auto exposure, Exposure compensation |