| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Pentax K2000
K2000 vs K-x |
Nikon D800E
D800E vs D810 |
| Successor: |
Pentax K-r
K-x vs K-r |
Nikon D850
D810 vs D850 |
| General | ||
| Model Number: | K-x | D810 |
| Alternate Model Number(s): | ||
| Camera Format: | SLR | Pro SLR |
| Currently Manufactured: | No | Yes |
| Retail Price: | $649.95 | $3299.95 |
| Street Price: | $701.76 | $2,278.45 |
| Date Available: | 2009-10-15 | 2014-07-31 |
| Tripod Mount: | Yes | Yes |
| Weight: |
27.9 oz
(791 g)
includes batteries, kit lens |
34.9 oz
(988 g)
includes batteries |
| Size: |
4.8 x
3.6 x
2.7 in. (122 x 92 x 69 mm) |
5.7 x
4.8 x
3.2 in. (146 x 123 x 82 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Sony | |
| Effective Megapixels: | 12.4 | 36.3 |
| Sensor Format: | APS-C | 35mm |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 861.6mm2 (35.90mm x 24.00mm) |
| Approximate Pixel Pitch: | 5.53 microns | 4.88 microns |
| Focal Length Multiplier: | 1.5x | 1.0x |
| Aspect Ratio: | 3:2 | 3:2 |
| Color Filter Type: | RGBG | RGBG |
| Anti Aliasing Filter: | Fixed | None |
| Self-Cleaning: | Yes | Yes |
| Sensor shift image stabilization: | Yes | No |
| On-Sensor Phase Detect: | No | No |
| DxO Sensor Score: | 72 | 97 |
| DxO Color Depth Score (bits): | 22.8 | 25.7 |
| DxO Dynamic Range Score (evs): | 12.5 | 14.8 |
| DxO Maximum Effective ISO Score (iso): | 811 | 2,853 |
| 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) |
7360 x 4912
(36.2 MP,
3:2), 5520 x 3680 (20.3 MP, 3:2), 3680 x 2456 (9.0 MP, 3:2), 6114 x 4080 (24.9 MP, 3:2), 4608 x 3056 (14.1 MP, Other), 3072 x 2040 (6.3 MP, Other), 4800 x 3200 (15.4 MP, 3:2), 3600 x 2400 (8.6 MP, 3:2), 2400 x 1600 (3.8 MP, 3:2), 6144 x 4912 (30.2 MP, 5:4), 4608 x 3680 (17.0 MP, 5:4), 3072 x 2456 (7.5 MP, 5:4) |
| Image File Format: | JPEG (EXIF 2.21), 12-bit RAW (.PEF, .DNG) | JPEG (EXIF 2.3), NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; small size available (12-bit uncompressed only); TIFF |
| Continuous-mode frames/second: | 4.3 | 5.1 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1280x720 (24)
640x416 (24) |
1920x1080 (60p/50p/30p/25p/24p)
1280x720 (60p/50p) |
| Movie File Format: | MOV (H.265/MPEG-4 AVC, Linear PCM stereo audio) | |
| Composite Video Out: | Yes | No |
| NTSC/PAL Switchable Video: | Yes | n/a |
| Video Usable as Viewfinder: | No | n/a |
| 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 | n/a |
| Focal Length (35mm equivalent): | 27 - 84mm | |
| Focal Length (actual): | 18 - 55mm | |
| Zoom Ratio: | 3.00x | |
| Aperture Range: | f/3.5 - 22 (W), f/5.6 - 38 (T) | |
| Integrated ND Filter: | No | |
| Normal Focus Range: | ||
| Macro Focus Range: | ||
| Filter Thread: | 52.0mm | n/a |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | No | No |
| Digital Zoom: | No | Yes |
| Digital Zoom Values: | n/a | 1.2x, 1.5x (DX), 5:4 crop modes |
| 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 | OVF: 51-point TTL phase detection via Nikon Advanced Multi-CAM 3500FX including 15 cross-type sensors; f/8 supported by 11 central sensors; Contrast detection AF in Live View mode |
| 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; eye-level pentaprism, 100% coverage, 0.7x magnification, 17mm eyepoint, -3 to +1 diopter |
| Focus Peaking: | No | No |
| EVF Resolution: | n/a | n/a |
| Viewfinder Magnification (35mm equivalent): | 0.57x | 0.70x |
| Viewfinder Magnification (nominal/claimed): | 0.85x | 0.70x |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 2.7 | 3.2 |
| Rear Display Resolution: | 230,000 dots | 1,229,000 dots (307,250 px) |
| Touchscreen: | No | No |
| Articulating Screen: | No | No |
| Tilt Swivel Screen: | No | No |
| Selfie Screen: | No | No |
| Max Playback Zoom: | 16.0x | |
| Top Deck Display: | No | Yes |
| Exposure | ||
| Maximum ISO (native): | 6400 | 12800 |
| Minimum ISO (native): | 200 | 64 |
| ISO Settings: | Auto (200-6400), 100, 200, 400, 800, 1600, 3200, 6400; expandable to 12800 | Auto, 64 - 12800 in 1/3, 1/2 or 1EV steps, plus down to 32 in Lo-1, up to 51,200 in Hi-2 |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (D, N, W, L), Flash, Custom | Auto (2), Incandescent, Fluorescent (7), Direct Sunlight, Flash, Cloudy, Shade, Preset Manual (6) (Spot WB available in Live View), Color Temperature (2,500K-10,000K); Fine-tuning available for all options. |
| Shutter Speed Range: | 1/6000 - 30 sec | 1/8000 - 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 | 91K-pixel 3D Color Matrix Metering III, Center-weighted (weight of 75% given to 12-mm circle in center of frame; diameter of circle can be changed to 8, 15 or 20 mm, or weighting can be based on average of entire frame), Spot (4mm circle or about 1.5% frame, centered on selected focus area) |
| 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 | None |
| Self Timer: | 2 or 12 seconds | 2/5/10/20 seconds |
| Time Lapse (intervalometer): | Yes | |
| 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 | Front-curtain sync, Slow sync, Rear-curtain sync, Red-eye reduction, Red-eye reduction with slow sync; supports Advanced Wireless Lighting system |
| Flash Guide Number (ISO 100): | 11.3 m / 37.1 ft. | 12.0 m / 39.4 ft. |
| Flash Range Description: | Depends on lens | Lens aperture dependent; GN = 12m or 39 ft (ISO 100) |
| Max Flash Sync: | 1/180 | 1/250 (up to 1/320s with lower flash range) |
| Flash Exposure Compensation: | -2 to +1 EV in 0.5EV steps | -3 to +1 EV in 0.3EV steps |
| External Flash Connection: | Hot Shoe | ISO-type hot-shoe, PC Sync terminal |
| Built-In Wireless Flash Control: | Full TTL exposure | Full TTL exposure |
| Image Storage | ||
| Usable Memory Types: | SD / SDHC | CF1 / SD / SDHC / SDXC |
| UHS Support: | UHS-I | |
| Other Memory: | UHS-I/UDMA compliant | |
| Dual Card Slots: | No | Yes |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | 12-bit RAW (.PEF, .DNG) | NEF (RAW): 12 or 14 bit, lossless compressed, compressed, or uncompressed; small size available (12-bit uncompressed only); TIFF |
| Movie File Format: | MOV (H.265/MPEG-4 AVC, Linear PCM stereo audio) | |
| 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 | Yes |
| External Connections: | USB 2.0 High Speed | USB 3.0 Super Speed |
| PictBridge Compliant: | No | Yes |
| DPOF Compliant: | Yes | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Optional IR | Optional wired or wireless |
| Connections (extended): | AC adapter available | Mini HDMI (Type C), USB 3.0 Micro-B, 10-pin Expansion Terminal (GP-1 GPS compatible), Stereo Mic Mini Jack (3.5mm), Stereo Audio Out (3.5mm) |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.39 | <0.3 |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 0.43 | <0.3 |
| Buffer size for RAW shooting in single shot mode (frames): | 10 | |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | <0.3 | |
| Camera penalizes early shutter press? | No | No |
| JPEG shooting speed in burst mode (fps, max resolution): | 4.3 | 5.1 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 25 | 57 |
| RAW shooting speed in burst mode (fps): | 5.1 | |
| Buffer size for RAW shooting in burst mode (frames): | 23 | |
| RAW+JPEG shooting speed in burst mode (fps): | 5.0 | |
| Buffer Size for RAW+JPEG shooting in burst mode (frames): | 18 | |
| Shutter lag (full AF, wide/mid): | 0.10 seconds | 0.21 seconds |
| Shutter lag (full AF, tele): | ||
| Shutter lag (full AF, live view - DSLR): | 0.88 seconds | |
| Shutter lag (prefocused, live view - DSLR): | 0.158 seconds | |
| Shutter Lag (manual focus): | 0.082 seconds | 0.056 seconds |
| Shutter lag (full AF, with flash): | 0.23 seconds | 0.24 seconds |
| Shutter Lag (prefocused): | 0.082 seconds | 0.054 seconds |
| Shutter Lag (notes): | Live View: Phase-detect Full AF: 0.448s Contrast-detect Full AF: 2.567s Prefocused: 0.427s | OVF, Full Autofocus, 51-point Auto Area = 0.302s Live View, Full Autofocus = 0.875s Live View, Prefocused = 0.158s |
| Startup Time: | 0.6 seconds | 0.5 seconds |
| Play -> Record Time: | 0.2 seconds | 0.8 seconds |
| Flash cycle time, full power: | 3.3 seconds | 2.2 seconds |
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | ||
| Battery Life, Still (CIPA Rating OVF/EVF): | 420 shots (NiMH AA) | 1200 shots |
| Battery Life, Video: | ||
| Battery Form Factor: | 4 x AA | Proprietary |
| Usable Battery Types: | Lithium, Alkaline disposables; NiMH rechargeables | EN-EL15 Lithium-ion rechargeable or MB-D12 battery grip |
| Batteries Included: | 4 x AA Alkaline disposables | 1 x Proprietary EN-EL15 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 | Nikon ViewNX 2 CD-ROM |
| OS Compatibility: | Windows XP/Vista/7, MacOS-X 10.3+ | Windows Vista/7/8; Mac OS 10.7.5+ |
| 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. | Brand-new, 36.3-megapixel FX-format (full-frame) AA-filterless CMOS sensor, expanded sensitivity range (ISO 32-51200), EXPEED 4 processor, Group-area AF mode, 5fps full-res burst mode, electronic front curtain shutter option, Full HD 60p video, Small RAW option, USB 3.0, dual CF/SD slots. |
