| Links | ||
|---|---|---|
| Prices: | ||
| Manufacturer URL: | Manufacturer website | Manufacturer website |
| Predecessor: |
Pentax K20D
K20D vs K-7 |
|
| Successor: |
Pentax K-5
K-7 vs K-5 |
|
| General | ||
| Model Number: | A900 | K-7 |
| Alternate Model Number(s): | ||
| Camera Format: | Pro SLR | Pro SLR |
| Currently Manufactured: | No | No |
| Retail Price: | $2999.99 | $1299.95 |
| Street Price: | ||
| Date Available: | 2008-11-15 | 2009-07-15 |
| Tripod Mount: | Yes | Yes |
| Weight: |
33.1 oz
(939 g)
includes batteries |
26.7 oz
(758 g)
includes batteries |
| Size: |
6.2 x
4.6 x
3.2 in. (156 x 117 x 82 mm) |
5.1 x
3.8 x
2.9 in. (130 x 97 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 | 14.6 |
| Sensor Format: | 35mm | APS-C |
| Sensor size: | 861.6mm2 (35.90mm x 24.00mm) | 369.72mm2 (23.7mm x 15.6mm) |
| Approximate Pixel Pitch: | 5.94 microns | 5.07 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 | Fixed |
| Self-Cleaning: | Yes | Yes |
| Sensor shift image stabilization: | Yes | Yes |
| On-Sensor Phase Detect: | No | No |
| DxO Sensor Score: | 79 | 61 |
| DxO Color Depth Score (bits): | 23.7 | 22.6 |
| DxO Dynamic Range Score (evs): | 12.3 | 10.6 |
| DxO Maximum Effective ISO Score (iso): | 1,431 | 536 |
| 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) |
4672 x 3104
(14.5 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) |
| Image File Format: | JPEG (EXIF 2.21), RAW, cRAW, RAW+JPEG; (ARW 2.0) | JPEG (EXIF 2.21), RAW (.PEF, .DNG) |
| Continuous-mode frames/second: | 5.0 | 5.2 |
| Video Capture | ||
| Can take movies: | No | Yes |
| Movie Resolution: |
1280x720 (30)
1536x1024 (30) 640x416 (30) |
|
| Movie File Format: | AVI (Motion JPEG) | |
| Composite Video Out: | Yes | Yes |
| NTSC/PAL Switchable Video: | Yes | Yes |
| Video Usable as Viewfinder: | No | No |
| HD Video Out: | Yes | Yes |
| HD Video Connection: | HDMI | HDMI |
| Lens & Optics | ||
| Lens Mount: | Sony Alpha (Minolta A) | Pentax K (KA/KAF/KAF2) |
| 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 | No |
| Digital Zoom Values: | n/a | 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. | 11-point TTL phase-matching (SAFOX VIII) |
| 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 100% coverage, 0.74x mag., 20mm eyepoint, -3 to +1 diopter | SLR type; eye-level pentaprism, 100% coverage, 0.92x mag., -2.5 to 1.5 diopter |
| Focus Peaking: | No | No |
| EVF Resolution: | n/a | n/a |
| Viewfinder Magnification (35mm equivalent): | 0.74x | 0.61x |
| Viewfinder Magnification (nominal/claimed): | 0.74x | 0.92x |
| Display | ||
| Eye-level Viewfinder: | Yes | Yes |
| Rear Display: | Yes | Yes |
| Rear Display Size (inches): | 3.0 | 3.0 |
| Rear Display Resolution: | 921,600 dots | 921,000 dots |
| Touchscreen: | No | No |
| Articulating Screen: | No | No |
| Tilt Swivel Screen: | No | No |
| Selfie Screen: | No | No |
| Max Playback Zoom: | 19.0x | 32.0x |
| Top Deck Display: | Yes | Yes |
| Exposure | ||
| Maximum ISO (native): | 3200 | 3200 |
| Minimum ISO (native): | 200 | 100 |
| ISO Settings: | Auto, 200-3200, Extensions to 100 and 6400 | Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) |
| 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, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature |
| 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: 77-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: | Sensitivity Priority, Shutter and Aperture Priority, USER, Movie | |
| Self Timer: | 2 or 10 seconds | 2 or 12 seconds |
| Time Lapse (intervalometer): | Yes | |
| High Resolution Composite: | No | No |
| Flash | ||
| Built-in Flash: | No | Yes |
| Flash Modes: | n/a | On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync, Wireless |
| Flash Guide Number (ISO 100): | n/a | 13.0 m / 42.7 ft. |
| Flash Range Description: | n/a | Depends on lens |
| Max Flash Sync: | 1/250 | 1/180 |
| 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: | Full TTL exposure | |
| Image Storage | ||
| Usable Memory Types: | CF1 / CF2 / MS Duo / MS PRO Duo / Microdrive | SD / SDHC |
| UHS Support: | ||
| Other Memory: | ||
| Dual Card Slots: | Yes | No |
| RAW Capture Support: | Yes | Yes |
| Uncompressed Format: | RAW, cRAW, RAW+JPEG; (ARW 2.0) | RAW (.PEF, .DNG) |
| Movie File Format: | AVI (Motion JPEG) | |
| Included Memory: | No memory included | |
| Included Memory Type: | ||
| Connectivity | ||
| Built-In Wi-Fi: | No | No |
| NFC: | No | |
| Bluetooth: | No | No |
| Built-In GPS: | No | No |
| Microphone Jack: | No | No |
| Headphone Jack: | No | No |
| External Connections: | USB 2.0 High Speed | USB 2.0 High Speed |
| PictBridge Compliant: | Yes | No |
| DPOF Compliant: | Yes | Yes |
| Remote Control: | Yes | Yes |
| Remote Control Type: | Wired or wireless | Wired or IR |
| Connections (extended): | DC input, Multi-connector, Sync termimal, Remote terminal, HDMI Type-C minijack | DC input, wired remote, external stereo mic jack |
| Performance Timing | ||
| Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): | 0.40 | <0.3 |
| Cycle time for RAW shooting in single shot mode (seconds per frame): | 0.41 | <0.3 |
| Buffer size for RAW shooting in single shot mode (frames): | 15 | 13 |
| Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot): | ||
| Camera penalizes early shutter press? | No | No |
| JPEG shooting speed in burst mode (fps, max resolution): | 5.0 | 5.2 |
| Buffer size for JPEG shooting in burst mode (frames, max resolution): | 11 | 20 |
| 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 | 0.09 seconds |
| Shutter lag (full AF, tele): | ||
| Shutter lag (full AF, live view - DSLR): | ||
| Shutter lag (prefocused, live view - DSLR): | ||
| Shutter Lag (manual focus): | 0.153 seconds | 0.075 seconds |
| Shutter lag (full AF, with flash): | 0.15 seconds | |
| Shutter Lag (prefocused): | 0.072 seconds | 0.074 seconds |
| Shutter Lag (notes): | Live View Phase-Detect Full AF: 1.2 seconds Contrast-Detect Full AF: 2.3 seconds Prefocused: 0.405 second | |
| Startup Time: | 0.5 seconds | 0.6 seconds |
| Play -> Record Time: | 0.3 seconds | 0.1 seconds |
| Flash cycle time, full power: | 3.7 seconds | |
| Power | ||
| Battery Life, Stills (CIPA Rating Monitor/Live View): | ||
| Battery Life, Still (CIPA Rating OVF/EVF): | 880 shots | 740 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: | ||
| Internal Charging Supported: | ||
| Software | ||
| Included Software: | Image Data Converter SR, Image Data Lightbox SR, Remote Camera Control (all Windows & Macintosh), Picture Motion Browser (Windows only). | CD-ROM S-SW74/75 |
| OS Compatibility: | Windows 2000Pro/XP/Vista; Mac OS X (v 10.1.3+) | Windows XP/Vista, MacOS 10.2 or later |
| Miscellaneous | ||
| Notes & Features: | 24.6MP Full-frame CMOS sensor, In-body SteadyShot Image Stabilization, Intelligent Preview, Enhanced DRO, Magnesium-alloy Body, Dust/Moisture Resistance, 100K Shutter, 3 User Programmable Memory Modes, AF Micro-adjustment, Top Mounted LCD, Quick Navigation system, Custom button, PhotoTV HD output via HDMI optimized for Sony Bravia TVs. | Sensor-shift image stabilization, new 77-segment metering system, Distortion and Lateral Chromatic Aberrations correction, High Dynamic Range (HDR) image capture mode, HD Movie capture (1280x720, 1536x1024, 640x416 all at 30 frames per second), HDMI output, magnesium alloy body. |
