With the a77, never miss another shot whether shooting a sequence of your preschooler's somersault, or the game-changing instant when ball meets bat. The a77 flawlessly captures fast action and fleeting moments with up to 12 fps continuous shooting—all at full 24.3-megapixel resolution with uninterrupted auto focus. Cutting-edge features include the world's first OLED electronic viewfinder  and Sony's award-winning Translucent Mirror Technology. Now it's easier than ever to capture professional-grade photos that burst with unimaginable richness, clarity and detail.

Spectacular 24.3MP Resolution
Capture incredibly detailed images that make for gorgeous enlargements thanks the world's first 24.3-megapixel sensor for APS-C DSLR cameras. Each shot captures a massive amount of detail with greatly reduced noise and vibrant images that explode with clarity and richness.
Slot for two media types
The a77 camera accepts o Memory Stick PRO Duo /Memory Stick PRO-HG Duo and SD/SDHC/SDXC media (Class 4 or higher recommended), each sold separately

16-50mm f/2.8 Standard Zoom Lens
Frame up the perfect shot with the SAL-1650, for less editing later. Get amazing wide-angle to mid-range telephoto shots with beautifully defined colors that make reliving the moment magical. Enjoy fast response and strong depth-of-field thanks to the wide f/2.8 aperture. ED Glass ensures brilliant shots with a wide array of color or try out Circular Aperture for pleasing defocused effects. Aspherical lens elements minimize any visual abberations at the wide angle settings.

Full-time Phase Detection AF
At your command is accurate auto focus in every mode, even HD Movie and Live View thanks to Sony’s exclusive Translucent Mirror Technology. Typically Contrast Detection Auto Focus hunts for correct focus, while Phase Detection AF knows exactly where correct focus is, and goes straight for it.

Ultra Speed Shooting
Capture up to 12 fps at full 24.3-megapixel resolution with continuous auto focus (AE locked after first frame) thanks to the power of Sony's award-winning Translucent Mirror Technology. Ideal for snapping a unique sequence of photos to capturing the defining moment in high speed sports photography.

World's First OLED Viewfinder
The Tru-Finder OLED electronic viewfinder boasts 2359K dots for ultra-high resolution, so images pop with richness, clarity and detail. A high contrast ratio lends superb depth, while motion blur is reduced to a minimum. All camera adjustments can be made and seen in real time through the viewfinder.

Amazing HD Movies
The choice is yours. Shoot super smooth 60p, standard 60i or cinematic 24p movies—all at Full HD 1920 x 1080 resolution Capture high-quality AVCHD video that looks great on your HDTV, or shoot MP4 videos for upload to the web. Maintain creative control of your movies with access to shutter priority, aperture priority, manual mode and more.

Rugged Magnesium Alloy Body
With a strong-yet-lightweight magnesium alloy body, the a77 delivers on the promise of its good looks with the strength and rugged reliability your active lifestyle demands. Plus, all ports, doors and controls are weather-resistant for worry-free shooting, come rain or shine.

Incredible Speed and Precision
The a77 combines both speed and fast focus in one camera. Infused with the latest version of Sony's award-winning Translucent Mirror Technology, light is directed to the image sensor and Phase Detection AF sensor simultaneously. Combined with Sony’s Exmor sensor technology which provides more than 5,600 column-parallel A/D converters., the result is ultra-fast shooting up to 10 fps with continuous auto focus.

Camera
Lens Compatibility : Sony A-mount lens
Camera Type : Sony A-mount interchangeable lens digital camera

Optics/ SAL-1650 Lens

Lens Type : Standard Zoom
Lens Mount Type : Sony A-mount
Aperture (Max.) : f/2.8
Aperture (Min.) : f/22
Focal Length (35mm equivalent) : APS: 24-75mm (35mm Equivalent: 16-50mm)
Filter Diameter : 72mm
Lens Groups-Elements : 13 groups, 16 elements
Minimum Focus Distance : 1' (30cm)
Angle of View : 83o- 32o
Aperture Blade : 7 blades (Circular aperture)
Distance Encoder : Yes
Lens Weight : 20.4 oz (577g)
Maximum Magnification : 0.2x

Focus Control

Focus System : TTL phase detection AF (CCD line sensors)
Focus Points : 19 points (11 points cross type)
AF Modes : Single-shot AF(AF-S), Continuous AF(AF-C), Automatic AF(AF-A) selectable, Direct Manual Focus (DMF), Manual Focus
Focus Area : Wide (auto,19 points)/Zone/Spot/Local selectable
Focus Sensitivity : EV -1 to 18 EV (at ISO100 equivalent, with F2.8 lens attached)
Focus Features : Predictive control(AF-A, AF-C), Focus Lock, Eye-start AF
AF Illuminator : Built-in LED, Range: approx. 3' - 21' (1m-7m)

Flash

Flash Compensation : ±3.0 EV (switchable between 1/3 and 1/2 EV steps)
Flash Coverage : FOV coverage up to 16 mm (in the focal length)
Recycling Time : Approx. 3 sec.
Flash Bracketing : 0.3/0.5/0.7/2.0/3.0EV steps, 3/5 frames(2.0/3.0EV : only 3 frames) selectable
Flash Metering System : ADI flash / Pre-flash TTL / Manual flash
Flash Modes : Auto, Fill-flash, Slow Sync., Rear Sync., Hi-speed sync., Red-eye reduction (on/off selectable for Autoflash and fill-flash mode), Wireless, Off
Flash Type : Built-in, Pop-up Auto
Guide Number : 12 (in meters at ISO100)

Weights and Measurements

Dimensions (Approx.) : Approx. 5-3/4 × 4-1/8 × 3-1/4" (142.6 x 104 x 80.9mm) (W/H/D) excluding protrusions
Weight (Approx.) : Approx. 1 lb 7 oz (653g) (excl battery, lens & media) Approx. 1 lb 9.8 oz (732g) (w/battery & media)

Imaging Sensor

Imaging Sensor : Exmor APS HD CMOS sensor (23.5 X 15.6mm)
Processor : BIONZ image processor
Anti Dust : Charge protection coating on Low-Pass Filter and electromagnetic vibration mechanism
Pixel Gross : Approx. 24.7 megapixels
Effective Picture Resolution : Approx. 24.3 megapixels
Focal Length Conversion Factor : 1.5x
Color Filter System : RGB primary color filters

Viewfinder

Type : 0.50" XGA OLED EVF (Electronic viewfinder) (2,359k dots)
Diopter Adjustment : -4.0m-1 to +3.0m
Field of View : 100%
Magnification : 1.09x (with 50mm lens at infinity, -1m )

Exposure System

Metering : Advanced 1200-zone evaluative metering
Metering Modes : Multi-segment, Center-weighted, Spot
Metering Sensitivity : -2EV to 17EV (at ISO 100 equivalent w/ f/1.4 lens)
Exposure Compensation : +/-5.0 EV(1/3EV,1/2EV steps selectable)
 
Exposure Settings : AUTO,AUTO Advanced (AUTO+), Scene Selection (SCN), Sweep Panorama, 3D Sweep Panorama (3D), Continuous Advance Priority AE (12fps), Movie, Programmed AE (P), Aperture priority (A), Shutter-speed priority (S), Manual (M)

Scene Mode(s) : Portrait, Landscape, Macro, Sports action, Sunset, Night portrait, Night View, Handheld Twilight

Picture Effect(s) : 11 types (15 variations): Posterization (Color, B/W), Pop Color, Retro Photo, Partial Color (R,G,B,Y), High Contrast Monochrome, Toy Camera, Soft High-key, Soft Focus, HDR Painting, Rich-tone Monochrome, Miniature

D-Range Optimizer : Yes: (Auto, Level, Off)
Auto Exposure Lock : Yes (AE Lock button)
Color Temperature : 2500 - 9900 k with 15-step each Magenta/Green compensation (G7 to M7), Amber/Blue (A7 to B7)

Creative Style : Standard, Vivid, Neutral, Clear, Deep, Light, Portrait , Landscape, Sunset, Night Scene, Autumn leaves, Black & White, Sepia (Contrast (-3 to +3steps), Saturation(-3 to +3steps), Sharpness(-3 to +3steps))


Exposure Bracketing : Bracket: Cont./Bracket: Single, 3/5 frames selectable

ISO : Auto (ISO 100-12800, selectable the lower limit and the upper limit ); Selectable ISO100 - 16000 equivalent (ISO numbers up from ISO50 can be set as expanded ISO range)

Noise Reduction : Long Exposure NR: (On/Off, available at shutter speeds longer than 1 second) High ISO NR: (High/Normal/Low)
 White Balance Mode : Auto,Daylight, Shade, Cloudy, Incandescent, Fluorescent (Warm White, Cool White, Day White, Daylight) , Flash, Setting the color temperature, Color Filter, Custom

Advanced Features

Auto High Dynamic Range : Yes, (Auto Exposure Difference, Exposure difference Level (1-6 EV at 1.0 EV step), off)
Embedded GPS : Yes
Sweep Panorama : Horizontal (Wide/Standard), Vertical, and 3D Panorama
Face Detection : On/On (Regist. Faces)/Off
Smile Shutter technology : Smile shutter (selectable from 3 steps)
Image Stabilization : SteadyShot INSIDE in-body image stabilization

Power

Battery Type : InfoLITHIUM NP-FM500H (7.2V)
Number of Still Images : Approx. 470 images with viewfinder, 530 images with LCD monitor (CIPA standard)
Recording
Media Type : Memory Stick PRO Duo/Pro-HG Duo media; SD, SDHC and SDXC memory card
Color Space : sRGB, AdobeRGB

Still Image Mode : JPEG (Standard, Fine, Extra Fine), RAW, RAW+JPEG
Still Image Size 16:9 : L size: 6000 x 3376 (20M) M size: 4240 x 2400 (10M) S size: 3008 x1688 (5.1M)
Still Image Size 3:2 : L size: 6000 x 4000 (24M) M size: 4240 x 2832 (12M) S size: 3008 x 2000 (6M)
Panorama Still Image Size : Horizontal Wide: 12,416 x 1,856 (23M) Horizontal Std.: 8,192 x 1,856 (15M) Vertical Wide: 2,160 x 5,536 (12M) Vertical Std.: 2,160 x 3,872 (8.4M) 3D Sweep Panorama: Horizontal Wide: 7152 X 1080 (7.7M) Horizontal Std.: 4912 X 1080 (5.3M) 16:9: 1920 X 1080 (2.1M)

Video Format : AVCHD / MP4 (MPEG-4 AVC (H.264))

Video Mode : AVCHD: PS - 1920 x 1080/60p@28Mbps FX - 1920 x 1080/60i@24Mbps FH - 1920 x 1080/60i@17Mbps FX - 1920 x 1080/24p@24Mbps FH - 1920 x 1080/24p@17Mbps MP4: HD - 1440 x 1080/ 30p@12Mbps VGA - 640 x 480/ 30p@3Mbps

Video Signal : NTSC color, EIA standards
Audio Format : Dolby Digital (AC-3) / MPEG-4 AAC-LC
Microphone/Speaker : Built-in Stereo Microphone

Still Image File Format : JPEG (DCF Ver. 2.0, Exif Ver.2.3, MPF Baseline compliant), RAW (Sony ARW 2.3format), 3D MPO (MPF Extended compliant)

LCD Display

LCD Type : 3.0” TFT Xtra Fine LCD (921,600 pixels) w/TruBlack technology
 Angle Adjustment : Tilt angle: Up: 150 degrees; Down: Approx. 180 degrees Rotation angle:180 degrees clockwise and 90 degrees counterclockwise.
 Brightness Control : Auto, Manual (5 steps between -2 to +2)

Coverage : 100%
Live View : Continuous Live View (LCD/EVF Auto, selectable)
Real-time image adjustment display : Yes(On/Off)
Histogram : Yes (On/off)
Grid Display : Yes (Rule of thirds, 4x6 Square, Diagonal & 4x6 Square Grids, Off)
Customization : Grid, Histogram display, Digital Level Gauge, Grid Line, Magnified display for playback

Drive System

Burst Buffer : JPEG Standard (17 shots) JPEG Fine (17 shots) JPEG Extra Fine (13 shots) RAW (13 shots) RAW+JPEG (11 shots)
Continuous Shooting Speed : Continuous (Hi: up to 8fps,Low: up to 3fps) Continuous Priority AE (12fps)
Drive Mode : Single-shot, Continuous shooting (Hi/Lo selectable), Self-timer (10/2 sec delay selectable), Bracket (Continuous/Single/WB/DRO), Remote commander (RMT-DSLR1 Sold Separately)
Self-timer : 2-sec. or 10-sec. delay,
Shutter Speeds : 1/8000 to 30 seconds, bulb
Shutter Type : Electronically-controlled, vertical-traverse, focal-plane shutter
Interface
Accessory Shoe : Yes (Alpha)
BRAVIA Sync : Yes, via HDMI with compatible BRAVIA HDTV
DVDirect : Yes, via USB
HD Output : HDMI (TypeC mini)

Memory Card Slot : Dual compatibility slot: Memory Stick PRO Duo/Pro-HG Duo/PRO-HG HX Duo media - SD, SDHC and SDXC memory card
 PhotoTV HD : Yes, with BRAVIA Sync enabled HDTV and HDMI® cable
 USB Port(s) : USB2.0 Hi-speed (mass-storage, MTP)

Limited Warranty Term : 1 Year Parts & Labor

Software

Supplied Software : *PMB (Picture Motion Browser) v5.2; Image Data Converter SR v3.2; Image Data Lightbox SR v2.2

*PMB is not compatible with Mac OS. Camera (via USB), Image Data Converter, and Image Data Lightbox software are compatible with Mac OS.

Operating System Compatibility : Windows XP SP3 (32-bit), Windows Vista SP2, Windows 7 SP1; Mac OS X (v10.3-10.6),