• APS-C 369.7mm2
  • 14.2 megapixels
  • ISO 200 - 12,800
  • APS-C 369.7mm2
  • 14.2 megapixels
  • ISO 100 - 12,800
  • Detailed specifications
  • Sony Alpha DSLR-A550
  • Sony Alpha SLT-A33
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: DSLR-A550 A33
Alternate Model Number(s):    
Camera Format: SLR SLR
Currently Manufactured: No No
Retail Price: $1049.99 $749.99
Street Price: $859.40 $539.99
Date Available: 2009-10-08 2010-09-15
Tripod Mount: Yes Yes
Weight: 32.2 oz (912 g)
includes batteries, kit lens
25.6 oz (725 g)
includes batteries, kit lens
Size: 5.4 x 4.1 x 3.3 in.
(137 x 104 x 84 mm)
4.9 x 3.6 x 3.3 in.
(124 x 92 x 85 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Sony
Effective Megapixels: 14.2 14.2
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 369.72mm2 (23.7mm x 15.6mm)
Approximate Pixel Pitch: 5.16 microns 5.16 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2, 16:9 3:2, 16:9
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes Yes
On-Sensor Phase Detect: No No
DxO Sensor Score: 66 70
DxO Color Depth Score (bits): 21.9 22.8
DxO Dynamic Range Score (evs): 11.8 12.6
DxO Maximum Effective ISO Score (iso): 807 591
Image Capture
Image Resolution: 4592 x 3056 (14.0 MP, 3:2),
4592 x 2576 (11.8 MP, 16:9),
3344 x 2224 (7.4 MP, 3:2),
3344 x 1872 (6.3 MP, Other),
2288 x 1520 (3.5 MP, Other),
2288 x 1280 (2.9 MP, Other)
4592 x 3056 (14.0 MP, 3:2),
4592 x 2576 (11.8 MP, 16:9),
3344 x 2224 (7.4 MP, 3:2),
3344 x 1872 (6.3 MP, Other),
2288 x 1520 (3.5 MP, Other),
2288 x 1280 (2.9 MP, Other),
12416 x 1856 (23.0 MP, Other),
8192 x 1856 (15.2 MP, Other),
2160 x 5536 (12.0 MP, Other),
2160 x 3872 (8.4 MP, Other),
7152 x 1080 (7.7 MP, Other),
4912 x 1080 (5.3 MP, Other),
1920 x 1080 (2.1 MP, 16:9)
Image File Format: JPEG, RAW JPEG, RAW (ARW 2.2), RAW+JPEG
Continuous-mode frames/second: 6.7 7.1
Video Capture
Can take movies: No Yes
Movie Resolution: 1920x1080 (60i/​50i)
1440x1080 (30/​25)
640x480 (30/​25)
Movie File Format:   AVCHD, MP4
Composite Video Out: No No
NTSC/PAL Switchable Video: n/a n/a
Video Usable as Viewfinder: n/a n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Sony Alpha (Minolta A) Sony Alpha (Minolta A)
Lens: Sony 18-55mm f/3.5-5.6 DT SAM Sony 18-55mm f/3.5-5.6 DT SAM
Focal Length (35mm equivalent): 27 - 83mm 27 - 83mm
Focal Length (actual): 18 - 55mm 18 - 55mm
Zoom Ratio: 3.00x 3.00x
Aperture Range: f/3.5 - 22 (W), f/5.6 - ?? (T) f/3.5 - 22 (W), f/5.6 - ?? (T)
Integrated ND Filter: No No
Normal Focus Range:    
Macro Focus Range:    
Filter Thread: 55.0mm 55.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: No No
Digital Zoom Values: n/a n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 9-point TTL phase detection (one cross-type sensor) with eye-start AF; Wide, Spot, Local modes Phase Detection: 15 points (3 points cross type); Wide, Spot, Local.
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD EVF / LCD
Viewfinder Type: SLR type; eye-level pentamirror, 95% coverage, 0.80x mag., 19mm eyepoint, -2.5 to +1.0 diopter EVF type; 1.1cm (0.43") 1,152K-dot LCD (384K-dot time-multiplexed RGB), 100% coverage, 1.10x mag., 19mm eyepoint, -4 to +4 diopter
Focus Peaking: No No
EVF Resolution: n/a  
Viewfinder Magnification (35mm equivalent): 0.53x 0.73x
Viewfinder Magnification (nominal/claimed): 0.80x 1.10x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 3.0
Rear Display Resolution: 921,600 dots 921,600 dots
Touchscreen: No No
Articulating Screen: Yes Yes
Tilt Swivel Screen:
Selfie Screen:
Max Playback Zoom: 14.0x 11.8x
Top Deck Display: No No
Exposure
Maximum ISO (native): 12800 12800
Minimum ISO (native): 200 100
ISO Settings: Auto (200-1600), 200, 400, 800, 1600, 3200, 6400, 12800 Auto (100-1600), 100, 200, 400, 800, 1600, 3200, 6400, 12800. (Multi-frame NR mode up to ISO 25600)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom, Color Temp./ Filter (2500 – 9900K with 19-step Magenta/Green compensation)
Shutter Speed Range: 1/4000 - 30 sec 1/4000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: 40-segment Multi Segment, Center-weighted, Spot; (1200 zone evaluative metering in Live View) 1200-zone Evaluative, Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Portrait, Landscape, Macro, Sports, Sunset, Night Portrait/Night View Portrait, Landscape, Macro, Sports action, Sunset, Night portrait, Night view, Hand-held Twilight, Sweep Panorama (2D/3D)
Self Timer: 2 or 10 seconds 2 or 10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off
Flash Guide Number (ISO 100): 12.0 m / 39.4 ft. 10.0 m / 32.8 ft.
Flash Range Description: Lens dependent Lens dependent
Max Flash Sync: 1/160 1/160
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps +/- 2.0 EV in 0.3EV steps
External Flash Connection: Hot shoe Hot shoe
Built-In Wireless Flash Control: Full TTL exposure Full TTL exposure
Image Storage
Usable Memory Types: MS Duo / MS PRO Duo / SD / SDHC MS PRO Duo / SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW RAW (ARW 2.2), RAW+JPEG
Movie File Format:   AVCHD, MP4
Included Memory:    
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No Yes
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wireless or Wired Optional Wireless or Wired
Connections (extended): DC input, mini-HDMI, Wired Remote Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.41 0.98
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.41 0.97
Buffer size for RAW shooting in single shot mode (frames): 19 Unlimited
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 6.7 7.1
Buffer size for JPEG shooting in burst mode (frames, max resolution): 15 13
RAW shooting speed in burst mode (fps):    
Buffer size for RAW shooting in burst mode (frames):    
RAW+JPEG shooting speed in burst mode (fps):    
Buffer Size for RAW+JPEG shooting in burst mode (frames):    
Shutter lag (full AF, wide/mid): 0.18 seconds 0.22 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.178 seconds 0.208 seconds
Shutter lag (full AF, with flash): 0.22 seconds 0.47 seconds
Shutter Lag (prefocused): 0.074 seconds 0.102 seconds
Shutter Lag (notes): Quick AF Live View shutter lag: 0.188s Full AF, wide-area mode = 0.219s
Startup Time: 0.5 seconds 0.8 seconds
Play -> Record Time: 0.4 seconds 0.5 seconds
Flash cycle time, full power: 3.5 seconds 3.4 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF): 950 shots 270 shots
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FM500H Proprietary NP-FW50
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FM500H 1 x Proprietary NP-FW50 Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Software/USB Driver CD-ROM Software CD-ROM (includes Picture Motion Browser, Image Data Converter SR, Image Data Lightbox SR)
OS Compatibility: Windows 2000/XP/Vista, Mac OS X (v. 10.13+) Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +)
Miscellaneous
Notes & Features: Exmore CMOS Sensor, Variable-angle LCD, SteadyShot In-body Sensor-shift Image Stabilization, Live View, Auto HDR, D-Range Optimizer (Auto, Level 1-5), HDMI Output, 7 fps (AF/AE Locked). SteadyShot INSIDE Image Stabilization, Articulating LCD, 1080i HD Video, Multi-frame NR, Hand-held Twilight, Auto HDR, D-Range Optimizer, 2D/3D Sweep Panorama, Smile Shutter, DOF Preview, 7fps Burst Mode.