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Digital SLR Cameras > Digital SLR Cameras - Sony > Sony Alpha A900 DSLR Camera
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Sony Alpha A900 Digital SLR Camera
       type i and microdrives (cf type ii).gif) 
The Sony Alpha A900 is a top-of-the-line 35mm full frame Digital SLR, incorporating a class-leading 24.6 Megapixel Full Frame Exmor CMOS sensor - dual BIONZ image processors work in parallel to maximise the performance of the sensor - and the world’s first body-integrated full-size “SteadyShot INSIDE” technology. The A900 features a durable Magnesium Alloy Chassis with weather-proof seals for peace of mind when shooting in tough conditions, a 3" Xtra Fine 921k LCD screen with Intelligent Preview and incorporates an exceptionally bright Viewfinder with 100% frame coverage.
The A900 also boasts a host of other features including:
- 5 fps fast continuous shooting with 24.6 mega pixel high resolution.
- Center dual-cross 9-point AF with additional 10-point assist plus dedicated f2.8 sensor for fast glass.
- AF micro adjustment for “tuning in” lenses.
- Improved Noise-Reduction and Dynamic range Optimizer (DRO) Algorithm.
- 3 User Programmable Memory Modes via Control Dial.
- 13 Creative Style presets for maximum image control.
- Quick Navi menu system for one-handed operation.
- Custom Button can be assigned to your choice of camera function.
- Dual memory card slots for Compact Flash and Memory Stick®
- Built-In Eyepiece Shutter.
- Mirror Lockup Mode.
- Top-mounted LCD panel for at-a-glance settings confirmation.
- Includes wireless Remote Commander for shutter-release and playback of images.
- Choice of Optional Focusing Screens to suit your shooting style.
- PhotoTV HD for quality photo viewing on BRAVIA HDTV via HDMI output.

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What's in the box?
Sony Alpha A900 Digital SLR Rechargeable Lithium-Ion Battery NPFM500H Battery Charger BC-VM10 Wireless Remote Commander RMT-DSLR1 Remote Commander Clip Shoulder Strap Body Cap USB Cable Video Cable Accessory Shoe Cap Eyecup CD-ROM Software Instruction Manual 12 Month Warranty with Sony Australia |
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Specifications
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Main Specifications of a900 |
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Camera Type |
Digital SLR camera for use with interchangeable lenses |
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Lens mount |
Sony a mount |
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Lens compatibility |
Sony a lenses, Minolta and Konica Minolta AF lenses*1 |
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Image Sensor |
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Sensor type |
35mm-film format (35.9 x 24.0 mm), Exmor CMOS sensor |
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Effective pixels |
Approx. 24.6 Megapixels |
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Total pixels |
Approx. 25.7 Megapixels |
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Aspect ratio |
3:2 |
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Anti-Dust function |
Charge protection coating on low-pass filter, Image-sensor shift mechanism |
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ISO sensitivity |
ISO 200-3200 in 1/3 EV steps
(ISO 100-6400 can be set as expanded ISO range)
ISO Auto Range: ISO 200-1600, ISO 400-1600,
ISO 400-800, ISO 200-800, ISO 200-400 selectable |
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Recording |
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Image format |
JPEG (DCF2.0 and Exif 2.21 compliant, DPOF supported), RAW (Sony ARW 2.1 format), RAW + JPEG |
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Image size |
<Aspect ratio 3:2>
L size: 6048 x 4032 (24M), M size: 4400 x 2936 (13M), S size: 3024 x 2016 (6.1M)
<Aspect ratio 16:9>
L size: 6048 x 3408 (21M), M size: 4400 x 2472 (11M), S size: 3024 x 1704 (5.2M)
<APS-C size capture>
L size: 3984 x 2656 (11M), M size: 2896 x 1928 (5.6M), S size: 1984 x 1320 (2.6M) |
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Image quality modes |
RAW, cRAW (compressed), RAW & JPEG (Fine), cRAW (compressed) & JPEG (Fine), Extra Fine, Fine, Standard |
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Media |
Memory Stick Duo, Memory Stick PRO Duo, Memory Stick PRO-HG Duo, CompactFlash (Type I / Type II, UDMA Mode 5 compliant), Microdrive |
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Card slot |
Dual slot for Memory Stick Duo / CompactFlash, selectable with Quick-Navi or from Setup Menu |
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Noise reduction |
Long exposure NR: On/Off selectable, available at shutter speeds longer than 1 sec. High ISO NR: High / Normal / Low / Off selectable at ISO 1600 or higher |
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Colour space |
sRGB / Adobe RGB selectable from Recording Menu |
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Creative Style |
13 image styles: Standard / Vivid / Neutral / Clear / Deep / Light / Portrait / Landscape / Sunset / Night View / Autumn Leaves / B&W / Sepia Adjustable parameter: Contrast / Saturation / Sharpness / Brightness / Zone Matching* 6 settings can be registered. * Saturation cannot be set for B&W and Sepia. |
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D-Range Optimizer |
Modes: Off / Standard / Advanced Auto / Advanced (Lv 1 to 5) DRO Advanced Bracketing: 3 frames, Hi / Lo selectable |
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White Balance |
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Modes |
Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash Color Temperature (2500 - 9900K) with color filter (19-step magenta / green compensation), Custom (3 settings can be registered) |
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Bracketing |
3 frames, Hi / Lo level selectable |
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Focus Control |
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Type |
TTL phase detection system |
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Sensor |
CCD line sensors |
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No. of focus points |
9 points (centre dual-cross type) with 10 assist points |
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Sensitivity range |
EV 0 - 18 (at ISO 100) |
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Modes |
Single-shot AF (AF-S), Automatic AF (AF-A), Continuous AF (AF-C), Direct Manual Focus (DMF), Manual Focus (MF) |
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Focus areas |
Wide, Spot, Local (9 local focus areas, selectable with multi selector) |
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Other features |
AF Micro Adjustment (+/- 20-step increments for up to 30 different lenses), Predictive control, Focus lock, AF illuminator (LED, Range: approx. 1-7 m, Auto / Off selectable) |
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Exposure |
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Metering |
Type: TTL metering Cell: 40-segment honeycomb-pattern SPC Range: EV 0-20 (EV 2-20 in spot metering mode) (at ISO 100 with F1.4 lens) Modes: Multi segment, Centre-weighted, Spot |
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Exposure control |
Modes: Auto, Program Auto (P, with program shift), Aperture priority (A), Shutter priority (S), Manual (M) Exposure compensation: +/-3 EV, 0.3 / 0.5 EV steps selectable Bracketing: 3 / 5 frames selectable, Single or Continuous selectable, 0.3 / 0. 5 / 0.7 / 2.0* EV steps selectable * 2.0 EV bracketing limited to 3 frames. |
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Viewfinder |
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Type |
Fixed eye-level, Pentaprism |
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Field coverage |
Approx. 100 % |
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Magnification |
Approx. 0.74 x (with 50mm lens at infinity, -1m-1 ) |
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Diopter adjustment |
-3.0 to +1.0 m-1 |
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Eye point |
Approx. 20 mm from the eyepiece (at -1 m-1 ) |
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Focusing screen |
Spherical acute matte screen (Type G). User-replaceable Type L (grid type) and Type M (super-spherical acute matte type) available (both types optional) |
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Area displayed |
AF area, Spot AF area, Spot metering area, Shooting area for aspect ratio 16:9, APS-C size area |
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Other displays |
Flash compensation, Flash charging, Wireless flash, High-speed sync, Manual focus, Focus signal, Shutter speed, Aperture, EV scale, AE lock, Shot-remaining counter, Camera shake warning, SteadyShot scale, Aspect ratio 16:9 |
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Eyepiece shutter |
Built in |
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LCD Monitor |
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Type |
3.0-inch type* Xtra Fine LCD * Viewable area, measured diagonally |
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Total number of dots |
921,600 dots |
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Coverage |
100% |
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Brightness adjustment |
Adjustable in +/- 5 steps |
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Preview |
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Function |
Intelligent Preview / Optical Preview selectable from menu |
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LCD Panel |
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Displays |
Shutter speed, Aperture, Exposure compensation, White balance, ISO sensitivity, Drive mode, Battery remaining, Remaining no. of recordable images, with illumination |
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Shutter |
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Type |
Electronically-controlled, vertical-traverse, focal-plane type |
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Speed range |
1/8000 to 30 sec., Bulb |
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Flash sync speed |
1/200 sec. with SteadyShot INSIDE, 1/250 sec. without SteadyShot INSIDE |
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SteadyShot® INSIDE (Image Stabilization) |
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Type |
Image-sensor shift mechanism |
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Indications |
SteadyShot scale and camera-shake warning in the viewfinder |
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Compensation effect |
Equivalent to approx. 2.5 to 4 steps in shutter speeds (varies according to shooting conditions and lens used) |
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Flash Control |
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External flash units |
a system flash units (optional) |
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Control |
ADI, Pre-flash TTL |
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Flash compensation |
3 / 5 frames, +/- 3 EV (0.3 / 0.5 EV steps selectable) |
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Modes |
Autoflash, Fill-flash, Rear sync, Wireless*, Slow sync, High-speed Sync * HVL-F58AM, HVL-F56AM, HVL-F42AM, HVL-F36AM supported; full multi-flash functionality requires at least one HVL-F58AM unit |
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Flash bracketing |
3 / 5 frames, 0.3 / 0.5 / 0.7 / 2.0* EV step selectable * 2.0 EV bracketing limited to 3 frames. |
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Sync terminal |
Built in, adaptable to the sync terminal of the opposite polarity |
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Drive |
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Modes |
Single, Continuous (Hi / Lo selectable), Self-timer (10 sec. / 2 sec. delay selectable), Mirror lock up, Remote commander |
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Continuous shooting speed |
Hi: approx 5 frames per sec. (max.), Lo: approx. 3 frames per sec. (max.) |
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No. of frames recordable |
Standard: 285, Fine: 105, Extra Fine: 11, RAW: 12, cRAW: 12, RAW & JPEG: 10, cRAW & JPEG: 10 |
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Playback |
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Modes |
Single (with or without shooting information, with 4 previous / following images, RGB histogram & highlight / shadow warning), 4 / 9 / 25-frame index view, enlarged display modes (max. zoom ratio: L size: 19x, M size: 14x, S size: 9.4x) |
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Interface |
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Computer interface type |
USB2.0 Hi-Speed, Mass Storage / Multi LUN / PTP / PC Remote Control |
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Video output |
NTSC / PAL selectable |
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HDMI output |
HDMI mini connector, 1080i / 720p / SD selectable (optional HDMI cable required) |
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Remote control |
Wired control: Remote Commander RM-S1AM / RM-L1AM (optional) Wireless control: with supplied Remote Commander / RMT-DSLR1 (optional) |
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Others |
PhotoTV HD supported |
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Supported OS Environments |
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Windows |
Windows 2000 Professional / Windows XP / Windows Vista |
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Macintosh |
Mac OS X (v. 10.13 or later) |
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Print |
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Compatible standards |
Exif Print, Print Image Matching III, PictBridge |
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Power |
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Power source |
One Rechargeable Battery Pack NP-FM500H, one CR2025 for Wireless Remote Commander |
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Battery performance |
Approx. 880 shots (measured using CIPA standards) |
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External power source |
AC Adapter / Charger AC-VQ900AM (optional) |
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Others |
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Dimension (WxHxD) |
Approx. 156.3 x 116.9 x 81.9 mm (6-1/8 x 4-5/8 x 3-1/4 in.) (excl. protrusions) |
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Weight |
Approx. 850 g (1 lb 14 oz) (w/o battery, memory card, accessories) |
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Operating temperature |
0-40 degrees C (32-104 degrees F) |
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