| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Pentax K2000
K2000 vs K-x |
Sony RX10 III
RX10 III vs RX10 IV |
| Successor: |
Pentax K-r
K-x vs K-r |
|
| General | ||
| Model Number: | K-x | RX10 IV |
| Alternate Model Number(s): | DSC-RX10M4 | |
| Camera Format: | SLR | EVF |
| Currently Manufactured: | No | Yes |
| Retail Price: | $649.95 | $1699.99 |
| Street Price: | $701.76 | $1,698.00 |
| Date Available: | 2009-10-15 | 2017-10-15 |
| Tripod Mount: | Yes | Yes |
| Weight: |
27.9 oz
(791 g)
includes batteries, kit lens |
38.6 oz
(1,095 g)
includes batteries |
| Size: |
4.8 x
3.6 x
2.7 in. (122 x 92 x 69 mm) |
5.2 x
3.7 x
5.0 in. (133 x 94 x 127 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Sony Exmor RS | |
| Effective Megapixels: | 12.4 | 20.1 |
| Sensor Format: | APS-C | 1 inch |
| Sensor size: | 369.72mm2 (23.7mm x 15.6mm) | 116.16mm2 (13.20mm x 8.80mm) |
| Approximate Pixel Pitch: | 5.53 microns | 2.41 microns |
| Focal Length Multiplier: | 1.5x | 2.7x |
| Aspect Ratio: | 3:2 | 3:2 |
| Color Filter Type: | RGBG | RGBG |
| Anti Aliasing Filter: | Fixed | Fixed |
| Self-Cleaning: | Yes | No |
| 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) |
5472 x 3648
(20.0 MP,
3:2), 4864 x 3648 (17.7 MP, 4:3), 5472 x 3080 (16.9 MP, 16:9), 3648 x 3648 (13.3 MP, 1:1), 3888 x 2592 (10.1 MP, 3:2), 3648 x 2736 (10.0 MP, 4:3), 3648 x 2056 (7.5 MP, Other), 2736 x 1824 (5.0 MP, 3:2), 2592 x 1944 (5.0 MP, 4:3), 2720 x 1528 (4.2 MP, 16:9), 12416 x 1856 (23.0 MP, Other), 8192 x 1856 (15.2 MP, Other), 2160 x 5536 (12.0 MP, Other), 2160 x 3872 (8.4 MP, Other) |
| Image File Format: | JPEG (EXIF 2.21), 12-bit RAW (.PEF, .DNG) | JPEG, RAW (ARW 2.3), RAW+JPEG |
| Continuous-mode frames/second: | 4.3 | 23.8 |
| Video Capture | ||
| Can take movies: | Yes | Yes |
| Movie Resolution: |
1280x720 (24)
640x416 (24) |
3840x2160 (30p/25p/24p)
1920x1080 (120p/100p/60p/60i/50p/50i/24p) 1280x720 (30p/25p) 1824x1026 (250p/240p) 1824x616 (500p/480p/250p/240p) 1244x420 (1000p/960p) 1292x436 (500p/480p) 912x308 (1000p/960p) |
| Movie File Format: | XAVC S 4K / XAVC S HD / AVCHD Ver.2.0 / MP4; with LPCM (2ch) / Dolby Digital (AC3) / MPEG-4 AAC-LC 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) | n/a |
| Lens: | smc Pentax DA L 18-55mm f/3.5-5.6 AL | Zeiss Vario-Sonnar T*, 18 elements in 13 groups (6 aspheric elements, including AA lens; 7 ED glass elements, 1 Super ED glass element) |
| Focal Length (35mm equivalent): | 27 - 84mm | 24 - 600mm |
| Focal Length (actual): | 18 - 55mm | 8.8 - 220mm |
| Zoom Ratio: | 3.00x | 25.00x |
| Aperture Range: | f/3.5 - 22 (W), f/5.6 - 38 (T) | f/2.4 (W) / f/4 (T) - f/16; 9-blade iris diaphragm |
| Integrated ND Filter: | No | No |
| Normal Focus Range: |
3 cm to Infinity 1.2 in to Infinity |
|
| Macro Focus Range: | ||
| Filter Thread: | 52.0mm | 72.0mm |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | No | Yes |
| Digital Zoom: | No | Yes |
| Digital Zoom Values: | n/a | Up to 4x standard digital zoom; up to 2x Clear Image Digital Zoom; Higher at reduced resolutions, up to 15.2x at VGA |
| 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 | Fast Hybrid AF (phase-detection AF/contrast-detection AF): Wide (315 points (phase-detection AF), 25 points (contrast-detection AF)); Center; Flexible Spot (S/M/L);Expanded Flexible Spot; Lock on AF (Wide/Center/Flexible Spot (S/M/L)/Expanded Flexible Spot) |
| Auto Focus Assist Light? | Yes | Yes |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | Optical / LCD | EVF / LCD |
| Viewfinder Type: | SLR type; fixed eye-level pentamirror, 96% coverage, 0.85x mag., -2.5 to +1.5 diopter | Fixed EVF: 0.39-inch, 2359K-dot XGA OLED, 100% coverage, 0.7x magnification, -4.0 to +3.0 diopter, eyepoint 23mm from eyepiece, 21.5mm from eyepiece frame (CIPA standard), eye sensor |
| Focus Peaking: | No | Yes |
| EVF Resolution: | n/a | 2,359,296 dots (786,432 pixels) |
| Viewfinder Magnification (35mm equivalent): | 0.57x | 0.70x |
| Viewfinder Magnification (nominal/claimed): | 0.85x | |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 2.7 | 3.0 |
| Rear Display Resolution: | 230,000 dots | 1,440,000 dots (480,000 px) |
| Touchscreen: | No | Yes |
| Articulating Screen: | No | Yes |
| 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 | 100 |
| ISO Settings: | Auto (200-6400), 100, 200, 400, 800, 1600, 3200, 6400; expandable to 12800 | Auto, ISO 100 - 12800 with ISO 64 and 80 low extensions, up to 25600 with Multi Frame NR |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (D, N, W, L), Flash, Custom | Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent (Warm, Cool, Day, Daylight), Flash, Color Temp/Filter, Custom |
| Shutter Speed Range: | 1/6000 - 30 sec | 1/32000 - 30 sec |
| Bulb Mode: | Yes | Yes |
| Exposure Compensation: | +/- 2.0EV in 0.3EV steps | +/- 3.0EV in 0.3EV steps |
| Metering Modes: | 16-segment Multi, Center-weighted, Spot | Multi-segment, Center-weighted, Spot |
| 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 Modes: Portrait, Sports Action, Macro, Landscape, Sunset, Night Scene, Handheld Twilight, Night Portrait, Anti Motion Blur, Panorama; HFR Mode; Picture Effects: Toy Camera, Pop Color, Posterization, Retro Photo, Soft High- key, Partial Color, High Contrast Monochrome, Soft Focus, HDR Painting, Rich-tone Monochrome, Miniature, Watercolor, Illustration; Dynamic Range Optimizer (Auto / Level), Auto High Dynamic Range: Off, Auto exposure difference, Exposure difference level (1.0 - 6.0 EV, 1.0 EV step) |
| Self Timer: | 2 or 12 seconds | 2, 5, 10; 3 or 5 shots after 2, 5, 10; Smile 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, Fill-flash, Slow Sync, Rear Sync, Off; (Wireless supported via external flash only; internal flash does not support Wireless mode.) |
| Flash Guide Number (ISO 100): | 11.3 m / 37.1 ft. | n/a |
| Flash Range Description: | Depends on lens | ISO Auto: Approx. 1.0m to 10.8m (3.28 ft. to 35.43 ft.) (W) / Approx. 1.0m to 6.5m (3.28 ft. to 21.33 ft.) (T) |
| Max Flash Sync: | 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 | Multi Interface Hot Shoe |
| Built-In Wireless Flash Control: | Full TTL exposure | No |
| Image Storage | ||
| Usable Memory Types: | SD / SDHC | MS Duo / MS PRO Duo / 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) | RAW (ARW 2.3), RAW+JPEG |
| Movie File Format: | XAVC S 4K / XAVC S HD / AVCHD Ver.2.0 / MP4; with LPCM (2ch) / Dolby Digital (AC3) / MPEG-4 AAC-LC audio | |
| Included Memory: | No memory included | No memory included |
| Included Memory Type: | ||
| Connectivity | ||
| Built-In Wi-Fi: | No | Yes |
| NFC: | No | Yes |
| Bluetooth: | No | Yes |
| Built-In GPS: | No | No |
| Microphone Jack: | No | Yes |
| Headphone Jack: | No | Yes |
| External Connections: | USB 2.0 High Speed | USB 2.0 High Speed,Bluetooth,WiFi |
| PictBridge Compliant: | No | No |
| DPOF Compliant: | Yes | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Optional IR | Optional Wired or Wi-Fi |
| Connections (extended): | AC adapter available | Micro HDMI (Type D) with 4K support, Multi-terminal Micro USB port supports optional wired remote, External mic and headphone jacks |
| 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 | |
| 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 | 23.8 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 25 | 217 |
| RAW shooting speed in burst mode (fps): | 24.2 | |
| Buffer size for RAW shooting in burst mode (frames): | 112 | |
| RAW+JPEG shooting speed in burst mode (fps): | 23.8 | |
| Buffer Size for RAW+JPEG shooting in burst mode (frames): | 107 | |
| Shutter lag (full AF, wide/mid): | 0.10 seconds | 0.03 seconds |
| Shutter lag (full AF, tele): | 0.04 seconds | |
| Shutter lag (full AF, live view - DSLR): | ||
| Shutter lag (prefocused, live view - DSLR): | ||
| Shutter Lag (manual focus): | 0.082 seconds | 0.035 seconds |
| Shutter lag (full AF, with flash): | 0.23 seconds | 0.12 seconds |
| Shutter Lag (prefocused): | 0.082 seconds | 0.009 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 | 1.9 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): | 400 shots | |
| Battery Life, Still (CIPA Rating OVF/EVF): | 420 shots (NiMH AA) | 370 shots |
| Battery Life, Video: | 75 minutes | |
| Battery Form Factor: | 4 x AA | Proprietary |
| Usable Battery Types: | Lithium, Alkaline disposables; NiMH rechargeables | NP-FW50 Lithium-ion rechargeable |
| Batteries Included: | 4 x AA Alkaline disposables | 1 x Proprietary NP-FW50 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 | Capture One Express (for Sony) free 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. | |
