• APS-C 369.7mm2
  • 14.6 megapixels
  • ISO 100 - 3200
  • APS-C 369.7mm2
  • 14.2 megapixels
  • ISO 100 - 3200
  • Detailed specifications
  • Samsung GX-20
  • Sony Alpha DSLR-A350
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: GX-20 DSLR-A350
Alternate Model Number(s):    
Camera Format: Pro SLR SLR
Currently Manufactured: No No
Retail Price: $1399.95 $900.00
Street Price:    
Date Available: 2008-03-30 2008-03-15
Tripod Mount: Yes Yes
Weight: 25.2 oz (714 g) 20.5 oz (582 g)
Size: 5.6 x 4.0 x 2.8 in.
(142 x 102 x 70 mm)
5.1 x 3.9 x 2.9 in.
(131 x 99 x 75 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CCD
Sensor Manufacturer:   Sony
Effective Megapixels: 14.6 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: 5.07 microns 5.16 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2 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: 68 65
DxO Color Depth Score (bits): 23.1 22.6
DxO Dynamic Range Score (evs): 11.2 11.5
DxO Maximum Effective ISO Score (iso): 714 595
Image Capture
Image Resolution: 4672 x 3104 (14.5 MP, Other),
3872 x 2592 (10.0 MP, Other),
3008 x 2000 (6.0 MP, 3:2),
1824 x 1216 (2.2 MP, 3:2)
4592 x 3056 (14.0 MP, 3:2),
4592 x 2576 (11.8 MP, 16:9),
3408 x 2272 (7.7 MP, 3:2),
3408 x 1920 (6.5 MP, 16:9),
2288 x 1520 (3.5 MP, Other),
2288 x 1280 (2.9 MP, Other)
Image File Format: JPEG (EXIF 2.21), RAW (.PEF, .DNG), 14-bit JPEG (EXIF 2.21), RAW, RAW+JPEG; (.ARW)
Continuous-mode frames/second: n/a 2.4
Video Capture
Can take movies: No No
Movie Resolution:
Movie File Format:    
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder: No No
HD Video Out: No
HD Video Connection:
Lens & Optics
Lens Mount: Pentax K (KA/KAF/KAF2) Sony Alpha (Minolta A)
Lens: n/a Sony 18-70mm f/3.5-5.6 DT SAL-1870
Focal Length (35mm equivalent):   27 - 105mm
Focal Length (actual):   18 - 70mm
Zoom Ratio:   3.88x
Aperture Range:   f/3.5 - 22 (W), f/5.6 - 36 (T)
Integrated ND Filter: No No
Normal Focus Range:   38 cm to Infinity
15.0 in to Infinity
Macro Focus Range:    
Filter Thread: n/a 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: 11-point TTL phase-matching (SAFOX VIII) 9-point, center cross TTL phase detection with eye-start and "Quick AF" for Live View
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: Optical / LCD Optical / LCD
Viewfinder Type: SLR type; eye-level pentaprism SLR type; eye-level pentamirror, 95% coverage, 0.74x magnification
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):   0.49x
Viewfinder Magnification (nominal/claimed):   0.74x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 2.7
Rear Display Resolution: 230,000 dots 230,000 dots
Touchscreen: No No
Articulating Screen: No Yes
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom: 32.0x 14.0x
Top Deck Display: Yes No
Exposure
Maximum ISO (native): 3200 3200
Minimum ISO (native): 100 100
ISO Settings: Auto, 100, 200, 400, 800, 1600, 3200, 6400 (expanded) Auto, 100, 200, 400, 800, 1600, 3200
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent (W, D, N), Flash, Color Temperature Auto, Daylight, Shade, Cloudy, Tungsten, Fluorescent, Flash, Color Temperature/Color Filter, Custom
Shutter Speed Range: 1/4000 - 30 sec 1/4000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: TTL open-aperture: 16-segment, Center-weighted, Spot 40-segment Honeycomb Pattern, Center-weighted, Spot; (1200 zone metering in Live View mode)
Program Auto Exposure: Yes Yes
Aperture Priority: Yes Yes
Shutter Priority: Yes Yes
Full Manual Exposure: Yes Yes
Creative Exposure Modes: Sensitivity Priority, Shutter and Aperture Priority Portrait, Landscape, Macro, Sports action, Sunset, Night portrait, No flash
Self Timer: 2 or 12 seconds 2 or 10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: On, Redeye, Slow Sync, Slow Sync + Redeye, Trailing Curtain Sync, Wireless Built-in Auto Popup: Auto, Fill-flash, Rear flash sync, Slow Sync, High Speed, Sync, Wireless off camera flash (with Flash HVL-F56AM, F36AM)
Flash Guide Number (ISO 100): n/a 12.0 m / 39.4 ft.
Flash Range Description: Depends on lens Lens dependent
Max Flash Sync: 1/180  
Flash Exposure Compensation:   +/- 3.0 EV in 0.3EV steps
External Flash Connection: Hot Shoe, X-Sync Socket Hot shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC CF1 / CF2 / Microdrive
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: RAW (.PEF, .DNG), 14-bit RAW, RAW+JPEG; (.ARW)
Movie File Format:    
Included Memory: No memory included  
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No No
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: Wired or IR Optional Wired
Connections (extended): DC input, wired remote DC Input, Wired Remote
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):   0.77
Cycle time for RAW shooting in single shot mode (seconds per frame):   0.75
Buffer size for RAW shooting in single shot mode (frames):   5
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press? No
JPEG shooting speed in burst mode (fps, max resolution):   2.4
Buffer size for JPEG shooting in burst mode (frames, max resolution):   3
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):   0.19 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.167 seconds
Shutter lag (full AF, with flash):   0.21 seconds
Shutter Lag (prefocused):   0.088 seconds
Shutter Lag (notes):   Full Autofocus Live View = 0.181s Full Autofocus Live View with Flash = 0.288s Prefocused Live View = 0.089s
Startup Time:   1.0 seconds
Play -> Record Time:   0.5 seconds
Flash cycle time, full power:   2.6 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):    
Battery Life, Still (CIPA Rating OVF/EVF):   730 shots
Battery Life, Video:    
Battery Form Factor: Proprietary Proprietary NP-FM500H
Usable Battery Types: Lithium-ion rechargeable Lithium Ion rechargeable
Batteries Included: 1 x Proprietary Lithium-ion rechargeable 1 x Proprietary NP-FM500H Lithium Ion rechargeabl
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
OS Compatibility:   Windows 2000/XP/Vista, Mac OS X 10.4+
Miscellaneous
Notes & Features: Tilting 2.7" LCD with Live View; Quick AF during Live View (pentamirror Tilt mechanism directs light to a dedicated live view image sensor, enabling fast and responsive TTL phase-detection auto-focusing, even during live view.); Super SteadyShot IS; Anti-Dust; Dynamic Range Optimizer. $800 body only, or $900 bundled with DT 18-70mm kit lens.