• APS-C 369.7mm2
  • 20.3 megapixels
  • ISO 100 - 12,800
  • APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 16,000
  • Detailed specifications
  • Samsung NX20
  • Sony Alpha SLT-A58
Links
Prices: Compare Prices Compare Prices
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:   Sony A68
A58 vs A68
General
Model Number: NX20 A58
Alternate Model Number(s):    
Camera Format: Compact System Camera SLR
Currently Manufactured: No No
Retail Price: $1099.99 $600.00
Street Price: $399.99 $598.00
Date Available: 2012-05-05 2013-04-15
Tripod Mount: Yes Yes
Weight: 22.5 oz (637 g)
includes batteries, kit lens
25.8 oz (731 g)
includes batteries, kit lens
Size: 4.8 x 3.5 x 1.6 in.
(122 x 90 x 40 mm)
5.1 x 3.8 x 3.1 in.
(129 x 96 x 78 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CMOS CMOS
Sensor Manufacturer: Samsung Sony
Effective Megapixels: 20.3 20.1
Sensor Format: APS-C APS-C
Sensor size: 369.72mm2 (23.7mm x 15.6mm) 366.6mm2 (23.50mm x 15.60mm)
Approximate Pixel Pitch: 4.33 microns 4.31 microns
Focal Length Multiplier: 1.5x 1.5x
Aspect Ratio: 3:2 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter: Fixed Fixed
Self-Cleaning: Yes Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No No
DxO Sensor Score: 75 74
DxO Color Depth Score (bits): 23.4 23.3
DxO Dynamic Range Score (evs): 12.9 12.5
DxO Maximum Effective ISO Score (iso): 785 753
Image Capture
Image Resolution: 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)
5456 x 3632 (19.8 MP, 3:2),
5456 x 3064 (16.7 MP, 16:9),
3872 x 2576 (10.0 MP, 3:2),
3872 x 2176 (8.4 MP, 16:9),
2736 x 1824 (5.0 MP, 3:2),
2736 x 1536 (4.2 MP, 16:9),
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)
Image File Format: JPEG (EXIF 2.21), .SRW 12-bit RAW JPEG, RAW (12-bit ARW 2.3), RAW+JPEG
Continuous-mode frames/second: 7.5 4.9
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1920x1080 (30p)
1920x810 (24p)
1280x720 (30p)
640x480 (30p)
320x240 (30p)
1920x1080 (60i or 24p (24/​17Mbps))
1440x1080 (30p/​12Mbps)
640x480 (30p/​3Mbps)
Movie File Format: MP4 (H.264) with AAC audio AVCHD / MP4; Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC, stereo
Composite Video Out: Yes No
NTSC/PAL Switchable Video: Yes n/a
Video Usable as Viewfinder: n/a
HD Video Out: Yes Yes
HD Video Connection: HDMI HDMI
Lens & Optics
Lens Mount: Samsung NX Sony Alpha (Minolta A)
Lens: Samsung 18-55mm f/3.5-5.6 OIS NX Sony 18-55mm f/3.5-5.6 DT SAM
Focal Length (35mm equivalent): 27 - 84mm 27 - 83mm
Focal Length (actual): 18 - 55mm 18 - 55mm
Zoom Ratio: 3.06x 3.06x
Aperture Range: f/3.5 (wide) / f/5.6 (tele) - f/22 f/3.5 - 22 (W), f/5.6 - 36 (T)
Integrated ND Filter: No No
Normal Focus Range: 28 cm to Infinity
11.0 in to Infinity
25 cm to Infinity
9.8 in to Infinity
Macro Focus Range:    
Filter Thread: 58.0mm 55.0mm
Thread Type: n/a n/a
Optical Image Stabilization: Yes No
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 2x i-Zoom Up to 4x; up to 2x Clear Image Digital Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: 15-point Contrast Detection; has single-point and 35-point closeup modes; Face Detection : Max. 10 faces Phase Detection: 15 points (3 points cross type); Wide (auto, 15 points), Zone, Spot, Local; Enhanced Object Tracking; Eye Start AF
Auto Focus Assist Light? Yes Yes
Manual Focus: Yes Yes
Viewfinder
Viewfinder: EVF / OLED EVF / LCD
Viewfinder Type: 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- EVF type; 1/2-inch, 1.44M-dot OLED Tru-Finder, 100% coverage, 0.88x magnification (0.57x 35mm eq.), 26.5mm from the eyepiece lens / 23mm from the eyepiece frame eye point, -4.0 to +4.0 diopter
Focus Peaking: No Yes
EVF Resolution: 1,440,000 dots (480,000 pixels) 1,440,000 dots
Viewfinder Magnification (35mm equivalent): 0.69x 0.57x
Viewfinder Magnification (nominal/claimed): 1.04x 0.88x
Display
Eye-level Viewfinder: Yes Yes
Rear Display: Yes Yes
Rear Display Size (inches): 3.0 2.7
Rear Display Resolution: 614,400 dots 460,800 dots (153,600 px)
Touchscreen: No No
Articulating Screen: Yes Yes
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom:   15.0x
Top Deck Display: No No
Exposure
Maximum ISO (native): 12800 16000
Minimum ISO (native): 100 100
ISO Settings: Auto (100-3200), 100, 200, 400, 800, 1600, 3200, 6400, 12800 (1 or 1/3 EV steps) Auto (100-3200), 100, 200, 400, 800, 1600, 3200, 6400, 12800, 16000; (Multi-frame NR mode up to ISO 25600)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Cloudy, White Fluorescent, Neutral Fluorescent, Daylight Fluorescent, Tungsten, Flash, Custom, Kelvin Color Temp., 7-step A/B + G/M adjust Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom, Color Temp./ Filter (2500-9900K with 15-step Magenta/Green compensation)
Shutter Speed Range: 1/8000 - 30 sec 1/4000 - 30 sec
Bulb Mode: Yes Yes
Exposure Compensation: +/- 3.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: 221-segment Multi, Center-weighted, Spot 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: Scene: Panorama (Live, 3D), Beauty shot, Night, Landscape, Portrait, Children, Sports, Close-Up, Text, Sunset, Dawn, Backlight, Fireworks, Beach & Snow, Sound Picture, 3D Photo; Smart Filter: Vignetting, Miniature, Fish-Eye, Sketch, De-fog, Halftone Dots, Soft Focus, Old Film1, Old Film2, Negative, Selective Color (4 Color Modes); Magic Frame: Old Album, Old Film, Wave, Full Moon, Old Record, Magazine, Sunny Day, Classic TV, Wall Art, Holiday, Billboard 1, Billboard 2, Newspaper Scene Modes: Portrait, Landscape, Macro, Sports Action, Sunset, Night Portrait, Night View, Handheld Twilight; Picture Effects: 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; Sweep Panorama, Anti Motion Blur, Multi Frame Noise Reduction
Self Timer: 2-30 sec in 1 sec steps seconds 2 or 10 seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Smart Flash, Auto, Auto+Red-eye reduction, Fill-in, Fill-in+Red-eye reduction, 1st Curtain, 2nd Curtain, Off Auto, Fill-flash, Slow Sync., Rear Sync., Hi-speed sync., Red-eye reduction (on/off selectable for Auto flash and fill-flash mode), Wireless, Off
Flash Guide Number (ISO 100): 11.0 m / 36.1 ft. 10.0 m / 32.8 ft.
Flash Range Description: Depends on lens aperture Lens dependent
Max Flash Sync: 1/180 1/160
Flash Exposure Compensation: +/- 2.0 EV in 0.5EV steps +/- 2.0 EV in 0.3EV steps
External Flash Connection: Hot shoe Multi Interface Hot shoe
Built-In Wireless Flash Control: No Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC / SDXC MS PRO Duo / SD / SDHC / SDXC
UHS Support:   No UHS support
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: Yes Yes
Uncompressed Format: .SRW 12-bit RAW RAW (12-bit ARW 2.3), RAW+JPEG
Movie File Format: MP4 (H.264) with AAC audio AVCHD / MP4; Audio: Dolby Digital (AC-3)/MPEG-4 AAC-LC, stereo
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: Yes 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,WiFi USB 2.0 High Speed
PictBridge Compliant: Yes No
DPOF Compliant: Yes Yes
Remote Control: Yes Yes
Remote Control Type: Optional wired (SR2NX02) Optional wired RM-VPR1
Connections (extended): Micro (Type D) HDMI, Combined AV/USB/Remote Micro USB Port Type-D Micro HDMI, DC Input, 3.5mm Stereo Micophone Jack, Multi/Micro USB (remote)
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 1.40 0.51
Cycle time for RAW shooting in single shot mode (seconds per frame): 1.32 0.55
Buffer size for RAW shooting in single shot mode (frames): 4 2
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):   0.57
Camera penalizes early shutter press? No No
JPEG shooting speed in burst mode (fps, max resolution): 7.5 4.9
Buffer size for JPEG shooting in burst mode (frames, max resolution): 11 8
RAW shooting speed in burst mode (fps):   4.9
Buffer size for RAW shooting in burst mode (frames):   6
RAW+JPEG shooting speed in burst mode (fps):   4.9
Buffer Size for RAW+JPEG shooting in burst mode (frames):   5
Shutter lag (full AF, wide/mid): 0.35 seconds 0.13 seconds
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus): 0.060 seconds 0.082 seconds
Shutter lag (full AF, with flash): 0.62 seconds 0.33 seconds
Shutter Lag (prefocused): 0.044 seconds 0.054 seconds
Shutter Lag (notes): Full AF Shutter Lag, Wide Area mode = 0.650s Full Autofocus Shutter Lag, Wide-area Mode = 0.139s
Startup Time: 3.0 seconds 1.9 seconds
Play -> Record Time: 0.9 seconds 1.1 seconds
Flash cycle time, full power: 3.6 seconds 2.1 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 360 shots 700 shots
Battery Life, Still (CIPA Rating OVF/EVF):   690 shots
Battery Life, Video:    
Battery Form Factor: Proprietary BP1310 Proprietary
Usable Battery Types: Lithium-ion rechargeable NP-FM500H Lithium-ion rechargeable
Batteries Included: 1 x Proprietary BP1310 lithium-ion rechargeable 1 x Proprietary NP-FM500H Lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included: Yes
Internal Charging Supported: No
Software
Included Software: intelli-studio 3.0, Samsung RAW Converter 4, PC Auto Backup, Adobe Reader PlayMemories Home, Image Data Converter 4
OS Compatibility: Windows, Mac OS (except intelli-studio) Windows XP SP3/Vista SP2/7 SP1/8; Mac OS X v10.5 or later. (Software is Windows only.)
Miscellaneous
Notes & Features: Built-in Wi-Fi (IEEE 802.11b/g/n support, Mobile Link, Remote Viewfinder, Social Sharing, Email, Cloud , Auto Backup, TV Link, Wi-Fi Direct), supports geotagging w/ optional WGS84 GPS Module. New 20.1MP Exmor APS HD CMOS sensor, SteadyShot INSIDE image stabilization, 2.7" 406K-dot tilting LCD, OLED Tru-Finder EVF, 5fps full-resolution burst mode (up to 8fps in Tele-zoom Continuous Advance Priority AE mode), new Lock-on autofocus, Full HD 1080i60 movies, Multi Interface Hot Shoe, new area-specific noise reduction. U.S. availability and pricing TBD.