| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Pentax K2000
K2000 vs K-x |
Nikon D5000
D5000 vs D5100 |
| Successor: |
Pentax K-r
K-x vs K-r |
Nikon D5200
D5100 vs D5200 |
| General | ||
| Model Number: | K-x | D5100 |
| Alternate Model Number(s): | ||
| Camera Format: | SLR | SLR |
| Currently Manufactured: | No | No |
| Retail Price: | $649.95 | $899.95 |
| Street Price: | $701.76 | $649.99 |
| Date Available: | 2009-10-15 | 2011-04-17 |
| Tripod Mount: | Yes | Yes |
| Weight: |
27.9 oz
(791 g)
includes batteries, kit lens |
29.2 oz
(829 g)
includes batteries, kit lens |
| Size: |
4.8 x
3.6 x
2.7 in. (122 x 92 x 69 mm) |
5.0 x
3.8 x
3.1 in. (128 x 97 x 79 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Sony | |
| Effective Megapixels: | 12.4 | 16.2 |
| Sensor Format: | APS-C | APS-C |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 368.16mm2 (23.60mm x 15.60mm) |
| Approximate Pixel Pitch: | 5.53 microns | 4.79 microns |
| Focal Length Multiplier: | 1.5x | 1.5x |
| Aspect Ratio: | 3:2 | 3:2 |
| Color Filter Type: | RGBG | RGBG |
| Anti Aliasing Filter: | Fixed | Fixed |
| Self-Cleaning: | Yes | Yes |
| Sensor shift image stabilization: | Yes | No |
| On-Sensor Phase Detect: | No | No |
| DxO Sensor Score: | 72 | 80 |
| DxO Color Depth Score (bits): | 22.8 | 23.5 |
| DxO Dynamic Range Score (evs): | 12.5 | 13.6 |
| DxO Maximum Effective ISO Score (iso): | 811 | 1,183 |
| Image Capture | ||
| Image Resolution: |
4288 x 2848
(12.2 MP,
Other), 3936 x 2624 (10.3 MP, 3:2), 3072 x 2048 (6.3 MP, 3:2), 1728 x 1152 (2.0 MP, 3:2) |
4928 x 3264
(16.1 MP,
Other), 3696 x 2448 (9.0 MP, Other), 2464 x 1632 (4.0 MP, Other) |
| Image File Format: | JPEG (EXIF 2.21), 12-bit RAW (.PEF, .DNG) | JPEG (EXIF 2.3), NEF (RAW) 14-bits, RAW+JPEG |
| Continuous-mode frames/second: | 4.3 | 3.9 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1280x720 (24)
640x416 (24) |
1920x1080 (30/25/24)
1280x720 (30/25/24) 640x424 (30/25) |
| Movie File Format: | MOV H.264/MPEG-4 | |
| Composite Video Out: | Yes | Yes |
| NTSC/PAL Switchable Video: | Yes | Yes |
| Video Usable as Viewfinder: | No | Yes |
| HD Video Out: | No | Yes |
| HD Video Connection: | HDMI | |
| Lens & Optics | ||
| Lens Mount: | Pentax K (KA/KAF/KAF2/3) | Nikon F |
| Lens: | smc Pentax DA L 18-55mm f/3.5-5.6 AL | NIKKOR AF-S 18-55mm f/3.5-5.6G DX VR |
| Focal Length (35mm equivalent): | 27 - 84mm | 27 - 83mm |
| Focal Length (actual): | 18 - 55mm | 18 - 55mm |
| Zoom Ratio: | 3.00x | 3.00x |
| Aperture Range: | f/3.5 - 22 (W), f/5.6 - 38 (T) | f/3.5 -22 (W), f/5.6 -36 (T) |
| Integrated ND Filter: | No | No |
| Normal Focus Range: |
28 cm to Infinity 11.0 in to Infinity |
|
| Macro Focus Range: | ||
| Filter Thread: | 52.0mm | 52.0mm |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | No | Yes |
| Digital Zoom: | No | No |
| Digital Zoom Values: | n/a | n/a |
| Auto Focus | ||
| Auto Focus: | Yes | Yes |
| Auto Focus Type: | SAFOX VIII TTL phase-detect 11 point (9 cross) AF: 11 pt auto, 5 pt auto, AF pt select, center/spot | 11 point TTL phase detection with 3D focus tracking by Nikon Multi-CAM 1000; Single-point, Dynamic and Auto Area modes. One cross-type sensor. |
| Auto Focus Assist Light? | Yes | Yes |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | Optical / LCD | Optical / LCD |
| Viewfinder Type: | SLR type; fixed eye-level pentamirror, 96% coverage, 0.85x mag., -2.5 to +1.5 diopter | SLR type; eye-level pentamirror, ~95% coverage, ~0.78x magnification (50mm f/1.4 lens and infinity, -1.0m^1), 17.9mm eyepoint (-1.0m^1), -1.7 to +0.7 diopter |
| Focus Peaking: | No | No |
| EVF Resolution: | n/a | n/a |
| Viewfinder Magnification (35mm equivalent): | 0.57x | 0.52x |
| Viewfinder Magnification (nominal/claimed): | 0.85x | 0.78x |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 2.7 | 3.0 |
| Rear Display Resolution: | 230,000 dots | 921,600 dots |
| Touchscreen: | No | No |
| Articulating Screen: | No | Yes |
| Tilt Swivel Screen: | No | Yes |
| Selfie Screen: | No | Yes |
| Max Playback Zoom: | 16.0x | 31.0x |
| Top Deck Display: | No | No |
| Exposure | ||
| Maximum ISO (native): | 6400 | 6400 |
| Minimum ISO (native): | 200 | 100 |
| ISO Settings: | Auto (200-6400), 100, 200, 400, 800, 1600, 3200, 6400; expandable to 12800 | Auto, 100-6400, Hi-1=12800, Hi-2=25600 |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (D, N, W, L), Flash, Custom | Auto, Incandescent, Fluorescent (7), Direct Sunlight, Flash, Cloudy, Shade, Manual |
| Shutter Speed Range: | 1/6000 - 30 sec | 1/4000 - 30 sec |
| Bulb Mode: | Yes | Yes |
| Exposure Compensation: | +/- 2.0EV in 0.3EV steps | +/- 5.0EV in 0.3EV steps |
| Metering Modes: | 16-segment Multi, Center-weighted, Spot | 3D Color Matrix Metering II (420-pixel RGB), Center-weighted (75% given to 8mm circle in the center), Spot (3.5mm circle (2.5%) centered on selected focus point) |
| Program Auto Exposure: | Yes | Yes |
| Aperture Priority: | Yes | Yes |
| Shutter Priority: | Yes | Yes |
| Full Manual Exposure: | Yes | Yes |
| Creative Exposure Modes: | Auto Picture (Portrait, Landscape, Macro, Action, Night Scene Portrait, Picture (Portrait, Landscape, Macro, Action, Night Scene Portrait, Standard Flash Off), Scene (Night Scene, Surf & Snow, Food, Sunset, Kids, Pet, Candlelight, Museum, Stage Lighting [JPG], Night Snap [JPG]), Sensitivity Priority | Portrait, Landscape, Child, Sports, Close up, Scene (Party/indoor, Beach/snow, Sunset, Dusk/dawn, Pet portrait, Candlelight, Blossom, Autumn colors, Food, Night portrait, Night landscape), Special Effects (Stills or D-movies: Silhouette, Selective Color, Night Vision, High Key, Low Key, Miniature Effect, Color Sketch). |
| Self Timer: | 2 or 12 seconds | 2, 5, 10, 20 seconds |
| Time Lapse (intervalometer): | ||
| High Resolution Composite: | No | No |
| Flash | ||
| Built-in Flash: | Yes | Yes |
| Flash Modes: | On, off, redeye, slow sync, slow sync w redeye, slow sync w trailing curtain, wireless | Auto, auto with red-eye reduction, auto slow sync, auto slow sync with red-eye reduction, fill-flash, red-eye reduction, slow sync, slow sync with red-eye reduction, rear-curtain with slow sync, rear-curtain sync, off; 18-300mm coveraqge |
| Flash Guide Number (ISO 100): | 11.3 m / 37.1 ft. | 12.0 m / 39.4 ft. |
| Flash Range Description: | Depends on lens | Lens dependent |
| Max Flash Sync: | 1/180 | 1/200 |
| Flash Exposure Compensation: | -2 to +1 EV in 0.5EV steps | -3 to +1 EV in 0.3EV steps |
| External Flash Connection: | Hot Shoe | Hot shoe |
| Built-In Wireless Flash Control: | Full TTL exposure | |
| Image Storage | ||
| Usable Memory Types: | SD / SDHC | SD / SDHC / SDXC |
| UHS Support: | UHS-I | |
| Other Memory: | ||
| Dual Card Slots: | No | No |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | 12-bit RAW (.PEF, .DNG) | NEF (RAW) 14-bits, RAW+JPEG |
| Movie File Format: | MOV H.264/MPEG-4 | |
| Included Memory: | No memory included | No memory included |
| Included Memory Type: | ||
| Connectivity | ||
| Built-In Wi-Fi: | No | No |
| NFC: | No | No |
| Bluetooth: | No | No |
| Built-In GPS: | No | No |
| Microphone Jack: | No | Yes |
| Headphone Jack: | No | No |
| External Connections: | USB 2.0 High Speed | USB 2.0 High Speed |
| PictBridge Compliant: | No | Yes |
| DPOF Compliant: | Yes | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Optional IR | Optional ML-L3 IR Remote or MC-DC2 Remote Cord |
| Connections (extended): | AC adapter available | HDMI Out (with CEC), Accessory Terminal for Wired Remote (MC-DC2) or GPS (GP-1), 3.5mm Stereo Mic Jack; DC-input via dummy battery AC adapter. |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.39 | 0.73 |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 0.43 | 0.77 |
| Buffer size for RAW shooting in single shot mode (frames): | 10 | Unlimited |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | 0.77 | |
| Camera penalizes early shutter press? | No | No |
| JPEG shooting speed in burst mode (fps, max resolution): | 4.3 | 3.9 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 25 | 100 |
| RAW shooting speed in burst mode (fps): | 4.0 | |
| Buffer size for RAW shooting in burst mode (frames): | 13 | |
| RAW+JPEG shooting speed in burst mode (fps): | 3.9 | |
| Buffer Size for RAW+JPEG shooting in burst mode (frames): | 9 | |
| Shutter lag (full AF, wide/mid): | 0.10 seconds | 0.27 seconds |
| Shutter lag (full AF, tele): | ||
| Shutter lag (full AF, live view - DSLR): | 1.28 seconds | |
| Shutter lag (prefocused, live view - DSLR): | 0.488 seconds | |
| Shutter Lag (manual focus): | 0.082 seconds | 0.248 seconds |
| Shutter lag (full AF, with flash): | 0.23 seconds | 0.29 seconds |
| Shutter Lag (prefocused): | 0.082 seconds | 0.114 seconds |
| Shutter Lag (notes): | Live View: Phase-detect Full AF: 0.448s Contrast-detect Full AF: 2.567s Prefocused: 0.427s | Optical Viewfinder: Wide-area AF: 0.408s Live View: Full AF lag: 1.28s Prefocused: 0.49s |
| Startup Time: | 0.6 seconds | 0.5 seconds |
| Play -> Record Time: | 0.2 seconds | 0.4 seconds |
| Flash cycle time, full power: | 3.3 seconds | 4.0 seconds |
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | ||
| Battery Life, Still (CIPA Rating OVF/EVF): | 420 shots (NiMH AA) | 660 shots |
| Battery Life, Video: | ||
| Battery Form Factor: | 4 x AA | Proprietary EN-EL14 |
| Usable Battery Types: | Lithium, Alkaline disposables; NiMH rechargeables | Lithium-ion rechargeable |
| Batteries Included: | 4 x AA Alkaline disposables | 1 x Proprietary EN-EL14 Lithium-ion rechargeable |
| Battery Charger Included (dedicated charger or AC/USB adapter): | No | Yes |
| Dedicated Battery Charger Included: | Yes | |
| Internal Charging Supported: | No | |
| Software | ||
| Included Software: | CD-ROM | ViewNX 2 CD-ROM |
| OS Compatibility: | Windows XP/Vista/7, MacOS-X 10.3+ | Windows, Mac OS |
| Miscellaneous | ||
| Notes & Features: | Sensor-shift shake reduction, 720p HD video capture, Live View with face detection. Available in black or white. Limited edition colors of red and navy will become available at select locations to be announced. | 3" Vari-angle 921K-dot LCD, Full HD Videos (up to 1920x1080@30fps), In-camera Special Effects, Night Vision mode, HDR, Active D-Lighting, 3.5mm External Stereo Mic socket. |
