• APS-C 369.7mm2
  • 14.2 megapixels
  • ISO 100 - 12,800
  • APS-C 369.0mm2
  • 20.3 megapixels
  • ISO 100 - 25,600
  • Detailed specifications
  • Sony Alpha SLT-A33
  • Samsung Galaxy NX
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: A33 Galaxy NX
Alternate Model Number(s):   GN120
Camera Format: SLR Compact System Camera
Currently Manufactured: No No
Retail Price: $749.99 $1399.99
Street Price: $539.99 $7,999.99
Date Available: 2010-09-15 2013-10-15
Tripod Mount: Yes Yes
Weight: 25.6 oz (725 g)
includes batteries, kit lens
25.3 oz (718 g)
includes batteries, kit lens
Size: 4.9 x 3.6 x 3.3 in.
(124 x 92 x 85 mm)
5.4 x 4.0 x 1.0 in.
(137 x 101 x 26 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Sony Samsung
Effective Megapixels: 14.2 20.3
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 368.95mm2 (23.50mm x 15.70mm)
Approximate Pixel Pitch: 5.16 microns 4.29 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2, 16:9 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No Yes
DxO Sensor Score: 70 75
DxO Color Depth Score (bits): 22.8 23.4
DxO Dynamic Range Score (evs): 12.6 12.3
DxO Maximum Effective ISO Score (iso): 591 910
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),
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)
5472 x 3648 (20.0 MP, 3:2),
5472 x 3080 (16.9 MP, 16:9),
3648 x 3648 (13.3 MP, 1:1),
3888 x 2592 (10.1 MP, 3:2),
3712 x 2088 (7.8 MP, 16:9),
2640 x 2640 (7.0 MP, 1:1),
2976 x 1984 (5.9 MP, 3:2),
2736 x 1824 (5.0 MP, 3:2),
2944 x 1656 (4.9 MP, 16:9),
2000 x 2000 (4.0 MP, 1:1),
1920 x 1080 (2.1 MP, 16:9),
1728 x 1152 (2.0 MP, 3:2),
1024 x 1024 (1.0 MP, 1:1)
Image File Format: JPEG, RAW (ARW 2.2), RAW+JPEG JPEG, MPO, .SRW 12-bit RAW
Continuous-mode frames/second: 7.1 8.2
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (60i/​50i)
1440x1080 (30/​25)
640x480 (30/​25)
1920x1080 (30p)
1920x810 (24p)
1280x720 (60p/​30p)
640x480 (60p/​30p)
320x240 (30p)
640x480 (240p)
Movie File Format: AVCHD, MP4 MP4 (H.264) with AAC audio
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) Samsung NX
Lens: Sony 18-55mm f/3.5-5.6 DT SAM Samsung 18-55mm f/3.5-5.6 OIS NX
Focal Length (35mm equivalent): 27 - 83mm 27 - 84mm
Focal Length (actual): 18 - 55mm 18 - 55mm
Zoom Ratio: 3.00x 3.06x
Aperture Range: f/3.5 - 22 (W), f/5.6 - ?? (T) f/3.5 (wide) / f/5.6 (tele) - f/22
Integrated ND Filter: No No
Normal Focus Range:   28 cm to Infinity
11.0 in to Infinity
Macro Focus Range:    
Filter Thread: 55.0mm 58.0mm
Thread Type: n/a n/a
Optical Image Stabilization: No Yes
Digital Zoom: No Yes
Digital Zoom Values: n/a Up to 2x i-Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Phase Detection: 15 points (3 points cross type); Wide, Spot, Local. Hybrid AF (Phase and Contrast Detection)
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / LCD EVF / LCD
Viewfinder Type: 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 EVF type with Eye Contact Sensor; SVGA (800 x 600) TFT-LCD; Coverage: Approx. 100%; Magnification: Approx. 1.04X (APS-C, 50mm, -1m-1), Approx. 0.68X (Equivalent to a 50mm lens on a 35mm camera); Eyepoint: Approx. 18.0mm; Diopter Adjustment: -4.0 to +4.0m-
Focus Peaking: No Yes
EVF Resolution:    
Viewfinder Magnification (35mm equivalent): 0.73x 0.69x
Viewfinder Magnification (nominal/claimed): 1.10x 1.04x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 4.8
Rear Display Resolution: 921,600 dots 2,764,800 dots (921,600 px)
Touchscreen: No Yes
Articulating Screen: Yes No
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom: 11.8x  
Top Deck Display: No No
Exposure
Maximum ISO (native): 12800 25600
Minimum ISO (native): 100 100
ISO Settings: Auto (100-1600), 100, 200, 400, 800, 1600, 3200, 6400, 12800. (Multi-frame NR mode up to ISO 25600) Auto, 100, 200, 400, 800, 1600, 3200, 6400, 12800, 25600 (1 or 1/3 EV steps)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom, Color Temp./ Filter (2500 – 9900K with 19-step Magenta/Green compensation) Auto, Daylight, Cloudy, White Fluorescent, Neutral Fluorescent, Daylight Fluorescent, Tungsten, Flash, Custom, Kelvin Color Temp., 7-step A/B + G/M adjust
Shutter Speed Range: 1/4000 - 30 sec 1/6000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: 1200-zone Evaluative, Center-weighted, Spot 221-segment Multi, 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 action, Sunset, Night portrait, Night view, Hand-held Twilight, Sweep Panorama (2D/3D) (1) Portrait : Smart Mode Suggest, Beauty face, Best Photo, Continuous Shot, Best Face, Color Bracket, Kids, Vignett+, Golf; (2) Scenery : Landscape, Dawn, Snow; (3) Close-up/Indoor : Macro, Food, Party/Indoor; (4) Pro Style : Action freeze, Rich Tone, Panorama, Waterfall, Animated Photo, Multi Exposure, Drama, Eraser, Sound & Shot, Miniature, Creative Shot, Interval; (5) Night Scenery : Silhouette, Sunset, Night, Fireworks, Light Trace
Self Timer: 2 or 10 seconds 2-30 sec in 1 sec steps seconds
Time Lapse (intervalometer):   Yes
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off Smart Flash, Auto, Auto+Red-eye reduction, Fill-in, Fill-in+Red-eye reduction, 1st Curtain, 2nd Curtain, Off
Flash Guide Number (ISO 100): 10.0 m / 32.8 ft. 11.0 m / 36.1 ft.
Flash Range Description: Lens dependent Lens dependant; GN=11m (at ISO 100)
Max Flash Sync: 1/160 1/180
Flash Exposure Compensation: +/- 2.0 EV in 0.3EV steps +/- 2.0 EV in 0.5EV steps
External Flash Connection: Hot shoe Hot shoe
Built-In Wireless Flash Control: Full TTL exposure  
Image Storage
Usable Memory Types: MS PRO Duo / SD / SDHC / SDXC microSD / microSDHC / microSDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (ARW 2.2), RAW+JPEG .SRW 12-bit RAW
Movie File Format: AVCHD, MP4 MP4 (H.264) with AAC audio
Included Memory:   No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
NFC: No
Bluetooth: No Yes
Built-In GPS: No Yes
Microphone Jack: Yes No
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed,Bluetooth,WiFi
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional Wireless or Wired  
Connections (extended): Type-C HDMI Mini Connector (BRAVIA Sync, PhotoTV HD); Wired Remote Terminal, 3.5mm External Stereo Micophone Jack Cellular (3G, 4G LTE), Wi-Fi, Micro (Type D) HDMI, SIM card slot, headphone jack (but not active during video recording)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 0.98 1.12
Cycle time for RAW shooting in single shot mode (seconds per frame): 0.97 1.33
Buffer size for RAW shooting in single shot mode (frames): Unlimited 20
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? No Yes
JPEG shooting speed in burst mode (fps, max resolution): 7.1 8.2
Buffer size for JPEG shooting in burst mode (frames, max resolution): 13 15
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): 0.22 seconds 0.33 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.208 seconds 0.201 seconds
Shutter lag (full AF, with flash): 0.47 seconds 0.55 seconds
Shutter Lag (prefocused): 0.102 seconds 0.146 seconds
Shutter Lag (notes): Full AF, wide-area mode = 0.219s Full AF shutter lag, auto-area mode = 0.422s
Startup Time: 0.8 seconds 2.7 seconds
Play -> Record Time: 0.5 seconds 3.0 seconds
Flash cycle time, full power: 3.4 seconds 6.3 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   440 shots
Battery Life, Still (CIPA Rating OVF/EVF): 270 shots  
Battery Life, Video:    
Battery Form Factor: Proprietary NP-FW50 Proprietary
Usable Battery Types: Lithium-ion rechargeable 3.8v 4360 mAh lithium-ion rechargeable
Batteries Included: 1 x Proprietary NP-FW50 Lithium-ion rechargeable 1 x Proprietary 4360 mAh 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 CD-ROM (includes Picture Motion Browser, Image Data Converter SR, Image Data Lightbox SR) Samsung Kies, Adobe Photoshop Lightroom
OS Compatibility: Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +) Windows, Mac
Miscellaneous
Notes & Features: 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. 20.3MP APS-C Sensor, DRIMe IV Image Processor, Advanced Hybrid Auto Focus (AF) System, 8.6fps Burst Mode, 30 Smart Modes, Runs Android 4.2 Jelly Bean OS, 1.6GHz Quad-Core Processor, Cellular (4G LTE, 3G), Wi-Fi a/b/g/n, Bluetooth 4.0 (LE), GPS, GLONASS.