Sony a55 detail page

Basic data
Name : a55
Manufacturer : Sony
Mount A-mount
Release year : 2010
Production status : Discontinued
Last firmware: 2.00 (06-2011)
Firmware download: EU-Win | EU-Mac | US-Win | US-Mac | Asia-Win | Asia-Mac
Sensor
Type: CMOS
Format: APS-C (1,5x)
Total pixel number: 16.7 MP
Effective pixel number: 16.2 MP
Sensor pitch: 4.78 µm
Sensor area: 3.67 cm²
Pixel density: 4.42 MP/cm²
Size: 23.5 x 15.6mm
Max. resolution: 4912 x 3264 px
ISO range: 100 - 12800
Sensor stabilisation: Yes
Focusing
AF sensors: 15 (3 cross)
Fast hybrid AF: No
Modes :
  • AFS (Single-shot AF)
  • AFC (Continuous AF)
  • AFA (Automatic AF)
AF range (EV): -1 - 18
AF assist (IR): No
AF lens adjustments: No
AF/MF button (rear): No
AF range limiter: No
Focus peaking: No
Eye start: Yes
Metering
Type: 1200 zone evaluative metering from main sensor
Range (EV): -2-17
AEL button: Yes
Exposure modes:
  • P-S-A-M
  • Auto
  • Auto no flash
  • 10fps shooting mode
  • sweep panorama
Program shift: No
Manual shift: Yes
Scene modes:
  • portrait
  • landscape
  • closeup
  • sport
  • night portrait
  • sunset
  • hand-held night shot
Exposure compensation: ±2.0 (1/3)
Flash
Built-in: Yes; GN: 10 m (32.8 ft) at ISO 100
Shoe Type iISO
Sync speed: 1/160
PC Sync connector: No
Ratio control: No
Flash modes:
  • normal
  • red-eye reduction
  • rear sync
  • slow sync
  • wireless
Flash exp. compensation: ± 2 (1/3)
Shooting
Max. shutter speed (s): 1/4000
Electronic first curtain: No
Electronic (silent) shutter: No
FPS w AF: 10
Drive modes:
  • single
  • continuous Hi (6 fps)
  • continuous Lo (3 fps)
  • 10 fps via continuous advance priority AE mode
Exposure bracketing (EV): 3 frames 1/3; 1/2
MLU: not needed
Wired remote conection: 3-pin
Wireless remote: Yes, optional
DOF preview: Yes
Tethered control: No
No-chip lenses: A / M mode
GPS: Yes
Viewfinder
Type: electronic
Vievfinder Resolution (px): 800×480
Magnification: 1.1 x
Eye relief (from frame): 19mm (18mm)
Diopter adjustement: -4 +4
Back LCD
Live view Yes
LCD size: 3"
LCD resolution: 921600px
LCD tilt - swivel: Yes - Yes
Touchscreen: No - Yes
Image options
Output resolutions:
  • 4912×3264
  • 3568×2368
  • 2448×16244912×2760 (16:9)
  • 3568×2000 (16:9)
  • 2448×1376 (16:9)
WB settings:
  • auto
  • daylight
  • shade
  • cloudy
  • tungsten
  • fluorescent
  • flash
  • direct entry
  • custom (1 preset)
Color spaces: sRGB, Adobe RGB
NR Off option: Yes
NR levels: Auto, Weak, multi-frame
DRO:
  • advanced auto
  • manual (5 levels)
Auto HDR: Yes
RAW: compressed ARW 2.2
Video features
Video capabilities: Yes
Resolution:
  • 1920 x 1080(60i or 50i depending on region)
  • 1440×1080
  • 640×480 (30p or 25p depending on region)
Video format: AVCHD, MPEG-4
Audio format: Dolby Digital (AC-3) / MPEG-4 AAC-LC
Microphone: built-in (stereo), external (stereo)
Additional video info: max. record time: 29 mins (SSS off; 9 mins w/ SSS on)
Body features and constructions
Environment sealings: No 
Card slots:
  • Memory Stick Duo
  • PRO Duo
  • PRO-HG Duo
  • SD
  • SDHC
  • SDXC
  • Eye-Fi
Vertical grip: No
Battery: NP-FW50
Weight: 441g
Dimensions: 124 x 92 x 85mm

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