Alpha 900 Specification

Type
 
 
Digital SLR camera for use with interchangeable lenses
Lens mount
 
 
Sony α mount
Lens compatibility
 
 
Sony α lenses, Minolta and Konica Minolta AF lenses *1
Image sensor
Image sensor
 
35mm-film format (35.9 ‚˜ 24.0mm), Exmor CMOS sensor
Effective pixels
 
Approx. 2460 megapixels
Total pixels
 
Approx. 2570 megapixels
Aspect ratio
 
3:2
Anti-dust function
 
Charge protection coating on low-pass filter, image-sensor shift mechanism
ISO sensitivity (Recommended Exposure Index)
 
ISO200-3200 in 1/3 EV steps iISO100 – 6400 can be set as expanded ISO range.j
ISO Auto Range: ISO200-1600, ISO200-1600, ISO400-1600, ISO400-800, ISO200-800, ISO200-400 selectable
Recording
Image format
 
JPEG (DCF2.0 and Exif 2.21 compliant, DPOF supported), RAW (Sony ARW 2.1 format), RAW & JPEG
Image Size
 
[Aspect Ratio 3:2] L size: 6048×4032 (24M), M size: 4400×2936 (13M), S size: 3024×2016 (6.1M)
 
[Aspect Ratio 16:9] L size: 6048×3408 (21M), M size: 4400×2472 (11M), S size: 3024×1704 (5.2M)
 
[APS-C Size Capture] L size: 3984×2656 (11M), M size: 2896×1928 (5.6M), S size: 1984×1320 (2.6M)
Image quality modes
 
RAW, cRAW (compressed), RAW & JPEG (Fine), cRAW (compressed) & JPEG (Fine), Extra Fine, Fine, Standard
Media
 
Memory Stick Duo, Memory Stick PRO Duo, Memory Stick PRO-HG Duo, CompactFlash (Type I/Type II, UDMA Mode 5 compliant), Microdrive
Card slot
 
Dual slot for Memory Stick Duo/CompactFlash, Selectable with Quick Navi or from Setup Menu
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
Colour space
 
sRGB/Adobe RGB selectable from Recording Menu
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.
D-Range optimizer
 
Mode: Off/Standard/Advanced Auto/Advanced (Lv 1 to 5)
 
DRO Advanced Bracketing: 3 frames, Hi/Lo level selectable
White Balance
Modes
 
Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Colour Temperature (2500-9900K) with colour filter (19-step magenta/green compensation), Custom (3 settings can be registered)

White Balance Bracketing: 3 frames; Hi/Lo level selectable
Focus
Type
 
TTL phase detection system
Sensor
 
CCD line sensors
Focus point
 
9 points (centre dual-cross type) with 10 assist points
Sensitivity range
 
EV 0 – 18 iat ISO100)
Modes
 
Single shot AF (AF-S), Automatic AF (AF-A), Continuous AF (AF-C), Direct Manual Focus (DMF), Manual Focus (MF)
Focus area
 
Wide, Spot, Local (9 local focus areas, selectable with multi selector)
Features
 
AF Micro Adjustment (+/- 20-step increments for up to 30 different lenses), Predictive control, Focus lock, AF illuminator (LED, Range: approx. 1-7m, Auto/Off selectable)
Exposure
Metering
 
Type: TTL metering
 
Metering Cell: 40-segment honeycomb-pattern SPC
 
Range: EV 0 – 20 iEV 2 – 20 in spot metering mode) (at ISO100 with F1.4 lens)
 
Mode: Multi segment, Centre-weighted, Spot
Exposure control
 
Mode: 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
 
Exposure 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.
Viewfinder
Type
 
Fixed eye-level, pentaprism
Field coverage
 
Approx. 100%
Magnification
 
Approx. 0.74x (with 50mm lens at infinity, -1m-1)
Diopter adjustment
 
-3.0 to +1.0m-1
Eyepoint
 
Approx. 20mm from the eyepiece (at -1m-1)
Focusing screen
 
Spherical acute matte screen (G type)
User-replaceable L type (Grid type) and M type (Super spherical acute matte type) available (with both types optional)
Viewfinder display
Focusing screen
AF area, Spot AF area, Spot metering area, Shooting area for aspect ratio 16:9, APS-C size area
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
Eyepiece shutter
 
Built-in
LCD Monitor Display
Type
 
3.0-inch type* Xtra Fine LCD 
*Viewable area, measured diagonally
Total number of dots
 
921,600 dots
Coverage
 
100%
Brightness adjustment
 
Adjustable in +/- 5 steps
Preview Function
 
 
Intelligent Preview/Optical Preview selectable from menu
Display Panel
 
 
Shutter speed, Aperture, Exposure compensation, White balance, ISO sensitivity, Drive mode, Battery remaining, Remaining number of recordable images, with illumination
Shutter
Type
 
Electronically-controlled, vertical-traverse, focal-plane type
Speed range
 
1/8000 to 30 sec., Bulb
Flash sync. speed
 
1/250 sec. w/o SteadyShot INSIDE, 1/200 sec. w/ SteadyShot INSIDE
SteadyShot INSIDE (Image Stabilization)
Type
 
Image-sensor shift mechanism
Indication
 
SteadyShot scale and camera-shake warning in the viewfinder
Compensation effect
 
Equivalent to approx. 2.5 to 4 steps in shutter speeds (varies according to shooting conditions and lens used)
Flash Control
External flash
 
α system flash units (optional)
Control
 
ADI , pre-flash TTL
Flash compensation
 
3 / 5 frames, +/- 3EV, 0.3 / 0.5 EV steps selectable
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
Flash bracketing
 
3 / 5 frames, 0.3 / 0.5 / 0.7 / 2.0*EV step selectable
*2.0EV bracketing limited to 3 frames.
Sync terminal
 
Built-in, adaptable to the sync. terminal of the opposite polarity 
Drive
Modes
 
Single, Continuous (Hi/Lo selectable), Self-timer (10 sec. /2 sec. delay selectable), Mirror lockup, Remote commander
Continuous shooting speed
 
Hi: approx 5 frames per sec. (max.), Lo: approx. 3 frames per sec. (max.)
Number of frames recordable
 
Standard: 285, Fine: 105, Extra Fine: 11, RAW: 12, cRAW: 12, RAW & JPEG: 10, cRAW & JPEG: 10
Playback
 
 
Single (with or without shooting information, with 4 previous/following images, RGB histogram, & height light /shadow warning), 4/9/25-frame index view, enlarged display mode (max. zoom ratio: L size: 19x, M size: 14x, S size: 9.4x)
Interface
PC interface
Type
USB2.0 Hi-speed
Mass Storage / Multi LUN / PTP / PC Remote Control
Supported OS
Windows: Windows 2000 Professional/Windows XP/Windows Vista
Macintosh: Mac OS X (v10.1.3 or laterj 
Video output
 
NTSC/PAL selectable
HDMI output
 
HDMI mini connector, 1080i/720p/SD selectable (optional HDMI cable necessary )
Remote control
Wired
Remote Commander RM-S1AM/RM-L1AM (optional)
Wireless Control
With supplied Remote Commander
 
Other
 
PhotoTV HD supported
Print Function
Compatible standards
 
Exif Print, Print Image Matching III, PictBridge
Power
Power source
 
One Rechargeable Battery Pack NP-FM500H
One CR2025 for Wireless Remote Commander
Battery performance
 
Approx. 880 shots (measured using CIPA standard)
External power source (AC adapter)
 
AC Adapter/Charger AC-VQ900AM (optional)
Weight
 
 
Approx. 850g (1 lb 14 oz) (w/o battery, memory card, accessories)
Dimensions
 
 
Approx. 156.3 (W) x 116.9 (H) x 81.9 (D) mm (excl. protorusions)
6 1/8 x 4 5/8 x 3 1/4 inches
Operating Temperature
 
 
0 to 40 degrees C (32-104 degrees F)