Sony A55 Review

4.5
February 17, 2011 | Mark Goldstein |

Specifications

Lens Mount
Sony α mount YES
Compatibility with A-Mount bayonet lenses from Minolta and Konica Minolta YES
Lens Compatibility
All types of Sony α lenses YES
Minolta & Konica Minolta α/MAXXUM/DYNAX lenses YES
Image Sensory
Image sensor type CMOS Sensor
Image sensor colour filter R, G, B, Primary color
Size (mm) 23.5 x 15.6 (APS-C size)
Camera
Total sensor Pixels (megapixels) Approx. 16.7
Effective Pixels (megapixels) Approx. 16.2
Automatic White Balance YES
White balance: preset selection Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash
White balance: custom setting YES
White balance: types of color temperature 2500 - 9900 k with 19-step Magenta / Green compensation
White balance bracketing 3 frames, Selectable 2 steps
ISO Sensitivity Setting ISO100 - 12800 equivalent
SteadyShot INSIDE
System: Sensor-shift mechanism YES
SteadyShot INSIDE scale (in viewfinder) YES
Camera-Shake warning (in viewfinder) NO
SteadyShot INSIDE capability Approx. 2.5 EV - 4 EV decrease in shutter speed (varies according to shooting conditions and lens used)
SteadyShot INSIDE compatibility All Sony DSLR lenses and A-Mount bayonet lenses from Minolta and Konica Minolta
*SteadyShot INSIDE was previously known as Super SteadyShot  
Anti-Dust
Charge protection coating on Low-Pass Filter and electromagnetic vibration mechanism YES
Auto Focus System
TTL phase-detection system YES
Sensor 15 points (3 points cross type)
Sensitivity Range (at ISO 100 equivalent); EV -1 - 18
Eye Start AF System (on off selectable) YES
AF Area: Wide focus area YES (auto with 15 areas)
AF Area: Spot YES
AF Area: Local focus area selection YES (15 local areas)
AF Area: Multi Point NO
AF Area: Center Weighted NO
AF Area: Flexible Spot NO
AF Modes Continuous, Single Shot, Automatic, Manual Focus
Predictive Focus Control YES (AF-A and AF-C)
Focus Lock YES
AF Illuminator YES (with built-in flash)
AF Illuminator range (meters) Approx. 1-5
Auto Exposure System
Light metering type 1200-zone evaluative metering
Light metering cell NO
Light metering: Multi segment YES
Light metering: Spot YES
Light metering: Center weighted YES
Exposure: Automatic YES
Exposure: Program Auto YES
Exposure: iAUTO NO
Exposure: AUTO+ YES
Exposure: Shutter priority YES
Exposure: Aperture priority YES
Exposure: Manual YES
Exposure: Scene selection YES
Sweep Panorama YES (2D, 3D)
Anti Motion Blur NO
AE Lock YES
Exposure compensation YES (+/-2.0 EV, 1/3 EV step)
AE Bracketing With 1/3 EV / 2/3 EV increments, 3 frames
Shutter
Type Electronically-controlled, vertical-traverse, focal-plane type
Shutter Speed Range (seconds) 1/4000 - 30 and bulb
Flash Sync Speed; second 1/160
Flash Sync Speed (With Steady Shoot On); second 1/160
Flash
Built-in-Flash Guide Number (in meters at ISO 100) 10
Flash Metering System ADI / Pre-flash TTL flash metering
Flash Compensation +/-2.0 EV (1/3 EV steps)
Built-in-Flash Recycling Time (approx. time in seconds) 4
Flash Mode Autoflash, Fill-flash, Slow sync, Rear flash sync. High Speed sync.
Wireless flash mode YES (with optional compatible accessory flash)
Slow Synchronization YES
Red-Eye Reduction YES
Flash Popup Auto
Automatic Flash YES
Viewfinder
Type Electronic
Field of View (%) 100
Magnification (with 50mm lens at infinity) 1.10x
Eye Relief Approx. 19mm from the Eyepiece lens
Diopter Adjustment -4.0 to +4.0 diopter
Live View
Type YES - Quick AF Live View
Other Face detection / Smile shutter
LCD screen
Screen Size 7.5cm / 3" Wide
Monitor Type Xtra Fine TruBlack LCD
LCD Total Dot Number 921.600
LCD on/off YES
Brightness adjustable YES
Tilting screen YES - Variable Angle Tilt
Rotating screen YES
Recording
Drive Mode Single, Continuous, 10 seconds and 2 seconds Self-timer
Continuous-Advance Rate (approx. frames per second at maximum) Max.10 fps in Continuous Advance Priority AE, max. 6 fps in Drive Mode
Number of Continuous Advance JPEG (L size, Fine): 35 images, RAW: 20 images, RAW+JPEG: 20 images
Recording Media Memory Stick PRO Duo™, Memory Stick PRO-HG Duo™, SD, SDHC, SDXC memory cards
Recording Format JPEG (DCF Ver. 2.0, Exif Ver. 2.3, MPF Baseline) compliant, DPOF compatible, RAW (Sony ARW 2.2 format), RAW + JPEG
Image Size L - JPEG (pixels) 4912 X 3264 (16M)
Image Size M (pixels) 3568 X 2368 (8.4M)
Image Size S (pixels) 2448 X 1624 (4M)
Panorama size:Max. degrees of sweep angle(focal length 16mm/18mm) "Image Size: Std Horizontal: 8,192 x 1,856(135deg/120deg) / Vertical: 3,872 x 2,160(101deg/90deg) Image Size: Wide Horizontal: 12,416 x 1,856(202deg/180deg) / Vertical: 5,536 x 2,160(142deg/126d
3D Panorama size:Max. degrees of sweep angle(Focal length:16mm/18mm) Image Size: 16:9 Horizontal: 1920 X 1080(69deg/62deg) Image Size: Std Horizontal: 4912 X 1080(178deg/158deg) Image Size: Wide Horizontal: 7152 X 1080(259deg/230deg)
Still Image quality RAW, RAW + JPEG, JPEG (Fine, Standard)
Movie Recording Format AVCHD / MP4
Video Compression MPEG-4 AVC / H.264
Audio recording Format Dolby® Digital (AC-3) / MPEG-4 AAC-LC
Movie recording mode - AVCHD YES, 1920 x 1080 (50i, Interlace), Approx.17Mbps (Average bit-rate) (PAL)
Movie recording mode - MP4 YES, 1440 x 1080 (Approx.25fps, Progressive), Approx.12Mbps(Average bit-rate) (PAL) / VGA(640 x 480, Approx.25fps, Progressive), Approx.3Mbps(Average bit-rate) (PAL)
GPS Heading YES
Noise Reduction (Long exp.NR) On / Off, available at shutter speeds longer than 1 second
Noise Reduction (High ISO NR) YES
Delete Function YES
Color Space (sRGB) YES
Color Space (Adobe RGB) YES
Color mode/DEC/Creative styles Standard, Vivid, Portrait, Landscape, Sunset, B/W
Dynamic Range Optimizer Off, Auto, Advanced: Level
Date/Time Print YES
Playback/Edit
Information Display YES
White/Black Out Alert YES
Index Playback YES (12, 6)
Enlarge (Maximum magnification) L size: 11.8x, M size: 8.8x, S size: 6x
Image Rotation YES
Auto Image Rotation YES
General
Battery Remaining Indicator YES
InfoLITHIUM Battery Indicator YES (in %)
Histogram Indicator YES
Exif 2.3
Exif Print YES
PictBridge NO
Menu Language English / French / German / Spanish / Italian / Portuguese / Dutch / Russian / Swedish / Danish / Norwegian / Finish / Polish / Czech / Hungarian / Greek / Turkish
Zone Matching NO
Depth-of-Field Preview YES
PRINT Image Matching III YES
Remote Release Terminal YES
IR Remote Control YES (with RMT-DSLR1)
DPOF(Digital Print Order Format) YES
Indicator of remaining memory space (CF) YES
Beep Sound On/Off selectable
File Number Memory On/Off selectable
Folder Name Mode Standard and Date
Operating Temperature (degrees C) 0 - 40
Jacks
Video Out NO
HD/HDMI® Out HDMI® mini connector (Type C), BRAVIA® Sync (Sync menu), Photo TV HD
USB 2.0 Hi-Speed YES
USB Mode Mass Storage (PC connection) / PTP
Power/Others
Battery System NP-FW50
Supplied Battery NP-FW50
Stamina (battery life in CIPA condition) Approx. 330 images with viewfinder, approx. 380 images in live view mode
Weight (g) Approx. 441
Dimensions
Width (mm) 124.4
Height (mm) 92
Depth (mm) 84.7

Entry Tags

hd video, hd, 3 inch LCD, review, 16 megapixel, hdmi, sony, DSLR, tilting, 1080i, 10fps, alpha, slt, slt-a55, a55, Sony A55

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