- APS-C 361.2mm2
- 25.7 megapixels
- ISO 100 - 1,600,000
- Go in depth with our full Pentax K-3 III Review.
- See real-world photos taken with the K-3 III.
| Links | ||
|---|---|---|
| Prices: | Compare Prices | |
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Pentax K-3 II
K-3 II vs K-3 III |
|
| Successor: | ||
| General | ||
| Model Number: | A850 | K-3 III |
| Alternate Model Number(s): | K-3 Mark III | |
| Camera Format: | Pro SLR | Pro SLR |
| Currently Manufactured: | No | Yes |
| Retail Price: | $1999.95 | $1999.95 |
| Street Price: | $2,219.00 | $1,846.95 |
| Date Available: | 2009-10-08 | 2021-04-06 |
| Tripod Mount: | Yes | Yes |
| Weight: | 30.0 oz (850 g) |
28.9 oz
(820 g)
includes batteries |
| Size: |
6.2 x
4.6 x
3.2 in. (156 x 117 x 82 mm) |
5.3 x
4.1 x
2.9 in. (135 x 104 x 74 mm) |
| Waterproof: | No | No |
| Waterproof Depth: | n/a | n/a |
| Image Sensor | ||
| Sensor Type: | CMOS | CMOS |
| Sensor Manufacturer: | Sony | |
| Effective Megapixels: | 24.6 | 25.7 |
| Sensor Format: | 35mm | APS-C |
| Sensor size: | 861.6mm2 (35.90mm x 24.00mm) | 361.15mm2 (23.30mm x 15.50mm) |
| Approximate Pixel Pitch: | 5.94 microns | 3.76 microns |
| Focal Length Multiplier: | 1.0x | 1.5x |
| Aspect Ratio: | 3:2, 16:9 | 3:2 |
| Color Filter Type: | RGBG | RGBG |
| Anti Aliasing Filter: | Fixed | Optional |
| Self-Cleaning: | Yes | Yes |
| Sensor shift image stabilization: | Yes | Yes |
| On-Sensor Phase Detect: | No | No |
| DxO Sensor Score: | 79 | |
| DxO Color Depth Score (bits): | 23.8 | |
| DxO Dynamic Range Score (evs): | 12.2 | |
| DxO Maximum Effective ISO Score (iso): | 1,415 | |
| Image Capture | ||
| Image Resolution: |
6048 x 4032
(24.4 MP,
3:2), 6048 x 3408 (20.6 MP, Other), 4400 x 2936 (12.9 MP, 3:2), 4400 x 2472 (10.9 MP, 16:9), 3984 x 2656 (10.6 MP, 3:2), 3024 x 2016 (6.1 MP, 3:2), 2896 x 1928 (5.6 MP, 3:2), 3024 x 1704 (5.2 MP, Other), 1984 x 1320 (2.6 MP, 3:2) |
6192 x 4128
(25.6 MP,
3:2), 4752 x 3168 (15.1 MP, 3:2), 3648 x 2432 (8.9 MP, 3:2), 1920 x 1280 (2.5 MP, 3:2) |
| Image File Format: | JPEG (EXIF 2.21), RAW, cRAW, RAW+JPEG; (ARW 2.0) | JPEG (EXIF 2.30), 14-bit RAW (.PEF, .DNG), RAW+JPEG |
| Continuous-mode frames/second: | 3.0 | 12.0 |
| Video Capture | ||
| Can take movies: | No | Yes |
| Movie Resolution: |
3840x2160 (30p/24p)
1920x1080 (60p/50p/30p/25p/24p) |
|
| Movie File Format: | MPEG-4 AVC/H.264 (MOV) | |
| Composite Video Out: | Yes | No |
| NTSC/PAL Switchable Video: | Yes | n/a |
| Video Usable as Viewfinder: | No | n/a |
| HD Video Out: | Yes | Yes |
| HD Video Connection: | HDMI | HDMI |
| Lens & Optics | ||
| Lens Mount: | Sony Alpha (Minolta A) | Pentax K (KA/KAF/KAF2/3/4) |
| Lens: | n/a | n/a |
| Focal Length (35mm equivalent): | ||
| Focal Length (actual): | ||
| Zoom Ratio: | ||
| Aperture Range: | ||
| Integrated ND Filter: | No | No |
| Normal Focus Range: | ||
| Macro Focus Range: | ||
| Filter Thread: | n/a | n/a |
| Thread Type: | n/a | n/a |
| Optical Image Stabilization: | No | No |
| Digital Zoom: | No | |
| Digital Zoom Values: | n/a | |
| Auto Focus | ||
| Auto Focus: | Yes | Yes |
| Auto Focus Type: | 9-point TTL phase detection with 10 assist points, center dual-cross at f/2.8. | SAFOX 13 TTL phase-matching - 101 point (25 cross type focus points in the center) |
| Auto Focus Assist Light? | Yes | Yes |
| Manual Focus: | Yes | Yes |
| Viewfinder | ||
| Viewfinder: | Optical / LCD (playback only) | Optical / LCD |
| Viewfinder Type: | SLR type; eye-level pentaprism with 98% coverage, 0.74x mag., 20mm eyepoint, -3 to +1 diopter | SLR type; eye-level pentaprism, ~100% coverage, 1.05x mag., 20.5mm eyepoint, -4.0 to +1.0 diopter |
| Focus Peaking: | No | Yes |
| EVF Resolution: | n/a | n/a |
| Viewfinder Magnification (35mm equivalent): | 0.74x | 1.05x |
| Viewfinder Magnification (nominal/claimed): | 0.74x | |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 3.0 | 3.2 |
| Rear Display Resolution: | 921,600 dots | 1,620,000 dots (540,000 px) |
| Touchscreen: | No | Yes |
| Articulating Screen: | No | No |
| Tilt Swivel Screen: | No | No |
| Selfie Screen: | No | No |
| Max Playback Zoom: | 19.0x | 16.0x |
| Top Deck Display: | Yes | Yes |
| Exposure | ||
| Maximum ISO (native): | 3200 | 1600000 |
| Minimum ISO (native): | 200 | 100 |
| ISO Settings: | Auto, 200-3200, Extensions to 100 and 6400 | Auto, 100-1600000 (1, 1/2 or 1/3 EV steps) |
| Auto ISO Mode: | Yes | Yes |
| White Balance Settings: | Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Color Temperature from 2,500K to 9,900K, Custom (3) | Auto, Multi Auto WB, Daylight, Shade, Cloudy, Fluorescent Light (D: Daylight Color, N:Daylight White, W:Cool White, L:Warm White), Tungsten Light, Flash, CTE, Manual (up to 3 settings), Color Temperature (up to 3 settings), Copying the white balance setting of a captured image |
| Shutter Speed Range: | 1/8000 - 30 sec | 1/8000 - 30 sec |
| Bulb Mode: | Yes | Yes |
| Exposure Compensation: | +/- 3.0EV in 0.3EV steps | +/- 5.0EV in 0.3EV steps |
| Metering Modes: | 40-segment Honeycomb Pattern, Center-weighted, Spot | TTL open-aperture: Multi-segment with 307K-pixel RGBIr sensor, Center-weighted, Spot, Highlight-weighted |
| Program Auto Exposure: | Yes | Yes |
| Aperture Priority: | Yes | Yes |
| Shutter Priority: | Yes | Yes |
| Full Manual Exposure: | Yes | Yes |
| Creative Exposure Modes: | Scene Analyze Auto, Program, Sensitivity Priority, Shutter Priority, Aperture Priority, Shutter & Aperture Priority; Digital filters (capture): Extract Color, Replace Color, Toy Camera, Retro, High Contrast, Shading, Invert Color, Unicolor Bold, Tone Expansion, Bold Monochrome, Grainy Monochrome; HDR: Auto, HDR1, HDR2, HDR3, Advanced HDR, Exposure bracket value adjustable, Automatic composition correction function; Pixel Shift Resolution (On/Off) | |
| Self Timer: | 2 or 10 seconds | 2 or 12 seconds |
| Time Lapse (intervalometer): | ||
| High Resolution Composite: | No | 24.0 megapixels |
| Flash | ||
| Built-in Flash: | No | No |
| Flash Modes: | n/a | P-TTL; Modes available depends on external flash mounted |
| Flash Guide Number (ISO 100): | n/a | n/a |
| Flash Range Description: | n/a | n/a |
| Max Flash Sync: | 1/250 | 1/200 |
| Flash Exposure Compensation: | +/- 3.0 EV in 0.3EV steps | -2 to +1 EV in 0.5EV steps |
| External Flash Connection: | Hot shoe, PC-sync | Hot Shoe, PC Sync socket |
| Built-In Wireless Flash Control: | No | |
| Image Storage | ||
| Usable Memory Types: | CF1 / CF2 / MS Duo / MS PRO Duo / Microdrive | SD / SDHC / SDXC |
| UHS Support: | UHS-II | |
| Other Memory: | ||
| Dual Card Slots: | Yes | Yes |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | RAW, cRAW, RAW+JPEG; (ARW 2.0) | 14-bit RAW (.PEF, .DNG), RAW+JPEG |
| Movie File Format: | MPEG-4 AVC/H.264 (MOV) | |
| Included Memory: | No memory included | |
| Included Memory Type: | ||
| Connectivity | ||
| Built-In Wi-Fi: | No | Yes |
| NFC: | No | |
| Bluetooth: | No | Yes |
| 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,Bluetooth,WiFi |
| PictBridge Compliant: | Yes | No |
| DPOF Compliant: | Yes | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Optional wired or wireless | Optional Wired or IR |
| Connections (extended): | DC input, Multi-connector, Sync termimal, Remote terminal, HDMI Type-C minijack | USB 3.2 Gen1 (Type-C), Micro B,Micro (Type D) HMDI, External cable switch terminal (2.5mm), X-sync socket, 3.5mm stereo mic input, 3.5mm headphone jack |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.40 | |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 0.50 | |
| Buffer size for RAW shooting in single shot mode (frames): | 23 | |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | ||
| Camera penalizes early shutter press? | Yes | |
| JPEG shooting speed in burst mode (fps, max resolution): | 3.0 | 12.0 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 23 | 30 |
| 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): | 0.18 seconds | |
| Shutter lag (full AF, tele): | ||
| Shutter lag (full AF, live view - DSLR): | ||
| Shutter lag (prefocused, live view - DSLR): | ||
| Shutter Lag (manual focus): | 0.154 seconds | |
| Shutter lag (full AF, with flash): | ||
| Shutter Lag (prefocused): | 0.074 seconds | |
| Shutter Lag (notes): | ||
| Startup Time: | 0.5 seconds | |
| Play -> Record Time: | 0.3 seconds | |
| Flash cycle time, full power: | ||
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | ||
| Battery Life, Still (CIPA Rating OVF/EVF): | 880 shots | 800 shots |
| Battery Life, Video: | ||
| Battery Form Factor: | Proprietary | Proprietary D-LI90 |
| Usable Battery Types: | NP-FM500H Lithium-ion rechargeable | Lithium-ion rechargeable |
| Batteries Included: | 1 x Proprietary NP-FM500H Lithium-ion rechargeable | 1 x Proprietary D-LI90 Lithium-ion rechargeable |
| Battery Charger Included (dedicated charger or AC/USB adapter): | Yes | Yes |
| Dedicated Battery Charger Included: | Yes | |
| Internal Charging Supported: | No | |
| Software | ||
| Included Software: | Image Data Converter SR, Image Data Lightbox SR, Remote Camera Control (all Windows & Macintosh), Picture Motion Browser (Windows only). | Software CD-ROM includes Digital Camera Utility 5 |
| OS Compatibility: | Windows 2000Pro/XP/Vista; Mac OS X (v 10.1.3+) | |
| Miscellaneous | ||
| Notes & Features: | Cost reduced Sony A900. Smaller viewfinder (98% vs 100%), slower burst mode (3 fps vs 5), wireless remote not included. | |
