Sony a57 (SLT-A57)

Sony a57 (SLT-A57)
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Basic data

Name: a57 (SLT-A57)

Manufacturer: Sony

Mount: A-mount

Release year: 2012

Last firmware: 1.04 (02-2013)


Sensor

Type: CMOS

Format: APS-C (1,5x)

Total pixel number: 16.7MP

Effective pixel number: 16.1MP

Sensor pitch: 4.78 µm

Sensor area: 3.67 cm²

Pixel density: 4.39 MP/cm²

Size: 23.5x15.6mm

Max resolution: 4912x3264px

Iso range: 100 - 16000

Sensor stabilisation: Yes


Focus

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: No

Af range limiter: No

Focus peaking: Yes

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: No

Scene modes:

  • Portrait
  • Landscape
  • Macro
  • Sports Action
  • Sunset
  • Night Portrait
  • Night View
  • Hand-held Twilight

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

Modes:

  • normal
  • red-eye reduction
  • rear sync
  • slow sync
  • wireless

Exp compensation: ± 2 (1/3)


Shooting

Max shutter speed: 1/4000

Electronic first curtain: Yes

Electronic shutter: No

Fps w af: 12

Drive modes:

  • single
  • continuous Hi (8 fps)
  • continuous Lo (3 fps)
  • 12 fps via high-speed mode

Exposure bracketing ev: 3 frames 1/3; 1/2

Mlu: not needed

Wired remote connection: 3-pin

Wireless remote: Yes, optional

Dof preview: Yes

Tethered control: No

Gps: No

No chip lenses: A / M mode


Viewfinder

Type: electronic

Resolution px: 800×600

Magnification: 1.04 x

Eye relief: 23,1mm (18mm)

Diopter adjustment: -4 +3


LCD

Live view: Yes

Size: 3"

Resolution: 921000px

Tilt swivel: Yes - Yes

Touchscreen: No - Yes


Image

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 2.3

Output resolutions:

  • 4912×3264
  • 4912×2760 (16:9)
  • 3568×2368
  • 3568×2000 (16:9)
  • 2448×1624
  • 2448×1376 (16:9)


Video

Capabilities: Yes

Resolution:

  • 1920x1080 (60p)
  • 1920x1080(24p)
  • 1440x1080(30p)
  • 640x480(30fps)

Format: AVCHD, MPEG-4

Audio format: Dolby Digital (AC-3) / MPEG-4 AAC-LC

Microphone: built-in (stereo), external (stereo)


Body

Environment sealings: No

Card slots:

  • Memory Stick Duo
  • PRO Duo
  • PRO-HG Duo
  • SD
  • SDHC
  • SDXC
  • Eye-Fi

Vertical grip: No

Battery: NP-FM500H

Weight: 618g

Dimensions: 132 x 98 x 81mm