- APS-C 369.7mm2
- 12.4 megapixels
- ISO 200 - 6400
- Go in depth with our full Pentax K-x Review.
- See real-world photos taken with the K-x.
| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Pentax K2000
K2000 vs K-x |
Fujifilm X-A5
X-A5 vs X-A7 |
| Successor: |
Pentax K-r
K-x vs K-r |
|
| General | ||
| Model Number: | K-x | X-A7 |
| Alternate Model Number(s): | ||
| Camera Format: | SLR | Compact System Camera |
| Currently Manufactured: | No | Yes |
| Retail Price: | $649.95 | $699.95 |
| Street Price: | $701.76 | $849.99 |
| Date Available: | 2009-10-15 | 2019-10-24 |
| Tripod Mount: | Yes | Yes |
| Weight: |
27.9 oz
(791 g)
includes batteries, kit lens |
16.0 oz
(455 g)
includes batteries, kit lens |
| Size: |
4.8 x
3.6 x
2.7 in. (122 x 92 x 69 mm) |
4.7 x
2.7 x
1.6 in. (119 x 68 x 41 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | ||
| Effective Megapixels: | 12.4 | 24.2 |
| Sensor Format: | APS-C | APS-C |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 368.95mm2 (23.50mm x 15.70mm) |
| Approximate Pixel Pitch: | 5.53 microns | 3.92 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 | Yes |
| DxO Sensor Score: | 72 | |
| DxO Color Depth Score (bits): | 22.8 | |
| DxO Dynamic Range Score (evs): | 12.5 | |
| DxO Maximum Effective ISO Score (iso): | 811 | |
| 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) |
6000 x 4000
(24.0 MP,
3:2), 4242 x 2832 (12.0 MP, 3:2), 3008 x 2000 (6.0 MP, 3:2), 6000 x 3376 (20.3 MP, 16:9), 4240 x 2384 (10.1 MP, 16:9), 3008 x 1688 (5.1 MP, 16:9), 4000 x 4000 (16.0 MP, 1:1), 2832 x 2832 (8.0 MP, 1:1), 2000 x 2000 (4.0 MP, 1:1), 5328 x 4000 (21.3 MP, 4:3), 3712 x 2784 (10.3 MP, 4:3), 2656 x 1995 (5.3 MP, 4:3), 9602 x 1440 (13.8 MP, Other), 2160 x 9600 (20.7 MP, Other), 6400 x 1440 (9.2 MP, Other), 2160 x 6400 (13.8 MP, Other) |
| Image File Format: | JPEG (EXIF 2.21), 12-bit RAW (.PEF, .DNG) | JPEG (Exif Ver 2.3), .RAF RAW, RAW + JPEG |
| Continuous-mode frames/second: | 4.3 | 6.0 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1280x720 (24)
640x416 (24) |
3840x2160 (30p/25p/24p/23.98p)
1920x1080 (60p/50p/30p/25p/24p/23.98p) 1080x1080 (60p/50p/30p/25/p24p/23.98p) 1280x720 (60p/50p/30p/25p/24p/23.98p) 720x720 (60p/50p/30p/25p/24p/23.98p) 1280x720 (100p) |
| Movie File Format: | MPEG-4/H.264 with linear PCM stereo sound | |
| 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) | Fujifilm X |
| Lens: | smc Pentax DA L 18-55mm f/3.5-5.6 AL | FUJINON XC 15-45mmF3.5-5.6 OIS PZ |
| Focal Length (35mm equivalent): | 27 - 84mm | 22.5 - 67.5mm |
| Focal Length (actual): | 18 - 55mm | 15 - 45mm |
| Zoom Ratio: | 3.00x | 3.00x |
| Aperture Range: | f/3.5 - 22 (W), f/5.6 - 38 (T) | f/3.5 (wide) / f/5.6 (tele) - f/22 |
| Integrated ND Filter: | No | No |
| Normal Focus Range: |
13 cm to Infinity 5.1 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 | Hybrid Phase/Contrast Detection AF with face and eye detection |
| Auto Focus Assist Light? | Yes | Yes |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | Optical / LCD | No / LCD |
| Viewfinder Type: | SLR type; fixed eye-level pentamirror, 96% coverage, 0.85x mag., -2.5 to +1.5 diopter | |
| Focus Peaking: | No | Yes |
| EVF Resolution: | n/a | n/a |
| Viewfinder Magnification (35mm equivalent): | 0.57x | |
| Viewfinder Magnification (nominal/claimed): | 0.85x | |
| Display | ||
| Eye-level Viewfinder: | Yes | No |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 2.7 | 3.5 |
| Rear Display Resolution: | 230,000 dots | 2,760,000 dots (920,000 px) |
| Touchscreen: | No | Yes |
| Articulating Screen: | No | Yes |
| Tilt Swivel Screen: | No | Yes |
| Selfie Screen: | No | Yes |
| Max Playback Zoom: | 16.0x | |
| Top Deck Display: | No | No |
| Exposure | ||
| Maximum ISO (native): | 6400 | 12800 |
| Minimum ISO (native): | 200 | 200 |
| ISO Settings: | Auto (200-6400), 100, 200, 400, 800, 1600, 3200, 6400; expandable to 12800 | 200-12800, Extended output sensitivity equivalent ISO 100, 25600 and 51200; AUTO, AUTO2, AUTO3 |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (D, N, W, L), Flash, Custom | Fine, Shade, Fluorescent light (Daylight), Fluorescent light (Warm White), Fluorescent light (Cool White), Incandescent light, Custom1-3, Underwater |
| Shutter Speed Range: | 1/6000 - 30 sec | 1/32000 - 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 | TTL 256-zones metering: Multi, Spot, Average |
| 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 | Scene: Portrait Enhancer, Landscape, Sports, Night, Portrait, Fireworks, Sunset, Snow, Beach, Party, Flower, Text, Multiple Exposure, Light Trail; Film Simulation (PROVIA/STANDARD, Velvia/VIVID, ASTIA/SOFT, CLASSIC CHROME, PRO Neg Hi, PRO Neg. Std, MONOCHROME, MONOCHROME+Ye FILTER, MONOCHROME+R FILTER, MONOCHROME+G FILTER, SEPIA); Dynamic range setting: AUTO (100-400%), 100%, 200%, 400%; HDR (Auto, 1.0EV, 1.5EV, 2.0EV, 2.5EV, 3.0EV); Advanced Filters (Toy camera, Miniature, Pop color, High-key, Low-key, Dynamic tone, Fish-eye, Soft focus, Cross screen, Partial color (Red / Orange / Yellow / Green / Blue / Purple), Fog Remove, HDR Art); Motion Panorama |
| Self Timer: | 2 or 12 seconds | 2, 10, Smile, Buddy, Group, Face Auto Shutter 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 | Auto, Forced Flash, Suppressed Flash, Slow Synchr, Rear-curtain Synchro, Commander; Red-eye reduction available |
| Flash Guide Number (ISO 100): | 11.3 m / 37.1 ft. | 4.0 m / 13.1 ft. |
| Flash Range Description: | Depends on lens | GN=4m (ISO 100) or 5.7m (ISO 200) |
| Max Flash Sync: | 1/180 | 1/180 |
| Flash Exposure Compensation: | -2 to +1 EV in 0.5EV steps | +/- 2.0 EV in 0.3EV steps |
| External Flash Connection: | Hot Shoe | Hot shoe |
| Built-In Wireless Flash Control: | Full TTL exposure | Trigger Only |
| 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) | .RAF RAW, RAW + JPEG |
| Movie File Format: | MPEG-4/H.264 with linear PCM stereo sound | |
| Included Memory: | No memory included | No memory included |
| Included Memory Type: | ||
| Connectivity | ||
| Built-In Wi-Fi: | No | Yes |
| NFC: | No | No |
| Bluetooth: | No | Yes |
| 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,Bluetooth,WiFi |
| PictBridge Compliant: | No | Yes |
| DPOF Compliant: | Yes | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Optional IR | Wi-Fi/Bluetooth or optional wired |
| Connections (extended): | AC adapter available | USB Type-C (USB 2.0 High-speed), Micro (Type D) HDMI, 2.5mm wired remote/external mic jack |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.39 | |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 0.43 | |
| Buffer size for RAW shooting in single shot mode (frames): | 10 | |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | ||
| Camera penalizes early shutter press? | No | |
| JPEG shooting speed in burst mode (fps, max resolution): | 4.3 | 6.0 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 25 | |
| RAW shooting speed in burst mode (fps): | ||
| Buffer size for RAW shooting in burst mode (frames): | ||
| RAW+JPEG shooting speed in burst mode (fps): | ||
| Buffer Size for RAW+JPEG shooting in burst mode (frames): | ||
| Shutter lag (full AF, wide/mid): | 0.10 seconds | |
| Shutter lag (full AF, tele): | ||
| Shutter lag (full AF, live view - DSLR): | ||
| Shutter lag (prefocused, live view - DSLR): | ||
| Shutter Lag (manual focus): | 0.082 seconds | |
| Shutter lag (full AF, with flash): | 0.23 seconds | |
| Shutter Lag (prefocused): | 0.082 seconds | |
| Shutter Lag (notes): | Live View: Phase-detect Full AF: 0.448s Contrast-detect Full AF: 2.567s Prefocused: 0.427s | |
| Startup Time: | 0.6 seconds | |
| Play -> Record Time: | 0.2 seconds | |
| Flash cycle time, full power: | 3.3 seconds | |
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | 270 shots | |
| Battery Life, Still (CIPA Rating OVF/EVF): | 420 shots (NiMH AA) | |
| Battery Life, Video: | 55 minutes | |
| Battery Form Factor: | 4 x AA | Proprietary NP-W126S |
| Usable Battery Types: | Lithium, Alkaline disposables; NiMH rechargeables | Lithium-ion rechargeable |
| Batteries Included: | 4 x AA Alkaline disposables | 1 x Proprietary NP-W126S Lithium-ion rechargeable |
| Battery Charger Included (dedicated charger or AC/USB adapter): | No | Yes |
| Dedicated Battery Charger Included: | No | |
| Internal Charging Supported: | Yes | |
| Software | ||
| Included Software: | CD-ROM | Viewer software, RAW File Converter, etc. available via download |
| OS Compatibility: | Windows XP/Vista/7, MacOS-X 10.3+ | |
| 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. | Available in Camel, Dark Silver, Mint Green or Silver. |
