• 1/2.3 inch 28.1mm2
  • 12.1 megapixels
  • 35.00mm - 140.00mm (35mm eq.)
  • APS-C 369.7mm2
  • 20.3 megapixels
  • ISO 100 - 12,800
  • Detailed specifications
  • Canon PowerShot A3100 IS
  • Samsung NX20
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: A3100 IS NX20
Alternate Model Number(s):    
Camera Format: Compact Compact System Camera
Currently Manufactured: No No
Retail Price: $179.99 $1099.99
Street Price: $84.95 $399.99
Date Available: 2010-02-28 2012-05-05
Tripod Mount: Yes Yes
Weight: 5.4 oz (154 g)
includes batteries 		22.5 oz (637 g)
includes batteries, kit lens
Size: 3.8 x 2.3 x 1.1 in.
(97 x 58 x 28 mm) 		4.8 x 3.5 x 1.6 in.
(122 x 90 x 40 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:   Samsung
Effective Megapixels: 12.1 20.3
Sensor Format: 1/2.3 inch APS-C
Sensor size: 28.0735mm2 (6.17mm x 4.55mm) 369.72mm2 (23.7mm x 15.6mm)
Approximate Pixel Pitch: 1.54 microns 4.33 microns
Focal Length Multiplier: n/a 1.5x
Aspect Ratio: 4:3, 16:9 3:2
Color Filter Type: RGBG RGBG
Anti Aliasing Filter:   Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: No No
On-Sensor Phase Detect: No No
DxO Sensor Score:   75
DxO Color Depth Score (bits):   23.4
DxO Dynamic Range Score (evs):   12.9
DxO Maximum Effective ISO Score (iso):   785
Image Capture
Image Resolution: 4000 x 3000 (12.0 MP, 4:3),
4000 x 2248 (9.0 MP, 16:9),
3264 x 2448 (8.0 MP, 4:3),
2592 x 1944 (5.0 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3),
640 x 480 (0.3 MP, 4:3) 		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 (EXIF 2.2) JPEG (EXIF 2.21), .SRW 12-bit RAW
Continuous-mode frames/second: 0.8 7.5
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30/​30 LP)
320x240 (30) 		1920x1080 (30p)
1920x810 (24p)
1280x720 (30p)
640x480 (30p)
320x240 (30p)
Movie File Format: AVI (Motion JPEG) MP4 (H.264) with AAC audio
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out: No Yes
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a Samsung NX
Lens: Canon Zoom Lens Samsung 18-55mm f/3.5-5.6 OIS NX
Focal Length (35mm equivalent): 35 - 140mm 27 - 84mm
Focal Length (actual): 6.2 - 24.8mm 18 - 55mm
Zoom Ratio: 4.00x 3.06x
Aperture Range: f/2.7 (W) to f/5.6 (T) f/3.5 (wide) / f/5.6 (tele) - f/22
Integrated ND Filter: No No
Normal Focus Range: 3 cm to Infinity
1.2 in to Infinity 		28 cm to Infinity
11.0 in to Infinity
Macro Focus Range: 3 - 60 cm
1.2 - 23.6 in 		 
Filter Thread: n/a 58.0mm
Thread Type: n/a n/a
Optical Image Stabilization: Yes Yes
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 4x Up to 2x i-Zoom
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect AF with Face Detection 15-point Contrast Detection; has single-point and 35-point closeup modes; Face Detection : Max. 10 faces
Auto Focus Assist Light? Yes Yes
Manual Focus: No Yes
Viewfinder
Viewfinder: LCD EVF / OLED
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-
Focus Peaking: No No
EVF Resolution: n/a 1,440,000 dots (480,000 pixels)
Viewfinder Magnification (35mm equivalent):   0.69x
Viewfinder Magnification (nominal/claimed):   1.04x
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.0
Rear Display Resolution: 230,000 dots 614,400 dots
Touchscreen: No No
Articulating Screen: No Yes
Tilt Swivel Screen: No
Selfie Screen: No
Max Playback Zoom: 10.0x  
Top Deck Display: No
Exposure
Maximum ISO (native):   12800
Minimum ISO (native):   100
ISO Settings: Auto, 80, 100, 200, 400, 800, 1600 Auto (100-3200), 100, 200, 400, 800, 1600, 3200, 6400, 12800 (1 or 1/3 EV steps)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom 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: 1/1600 - 15 sec 1/8000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 3.0EV in 0.3EV steps
Metering Modes: Evaluative, Center-weighted average, Spot, Face Detect AE 221-segment Multi, Center-weighted, Spot
Program Auto Exposure: Yes Yes
Aperture Priority: No Yes
Shutter Priority: No Yes
Full Manual Exposure: No Yes
Creative Exposure Modes: Auto*, Easy, Portrait, Landscape, Night Snapshot, Kids & Pets, Indoor, SCN**; *Automatically detects shooting scene; **Face Detection Self-Timer, Low Light, Super Vivid, Poster Effect, Beach, Foliage, Snow, Fireworks, Long Shutter 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
Self Timer: 2, 10, custom seconds 2-30 sec in 1 sec steps seconds
Time Lapse (intervalometer):    
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Red-eye Reduction, Auto Red-eye Correction, Flash On, Flash Off; FE lock, Slow Synchro, Smart Flash Smart Flash, Auto, Auto+Red-eye reduction, Fill-in, Fill-in+Red-eye reduction, 1st Curtain, 2nd Curtain, Off
Flash Guide Number (ISO 100): n/a 11.0 m / 36.1 ft.
Flash Range Description: Auto ISO: 1-13 ft./30cm-4.0m (W), 1-6.6 ft./30cm-2.0m (T) Depends on lens aperture
Max Flash Sync:   1/180
Flash Exposure Compensation:   +/- 2.0 EV in 0.5EV steps
External Flash Connection: n/a Hot shoe
Built-In Wireless Flash Control:   No
Image Storage
Usable Memory Types: SD / SDHC / SDXC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No Yes
Uncompressed Format:   .SRW 12-bit RAW
Movie File Format: AVI (Motion JPEG) MP4 (H.264) with AAC audio
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No Yes
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,WiFi
PictBridge Compliant: Yes Yes
DPOF Compliant: Yes Yes
Remote Control: Yes
Remote Control Type:   Optional wired (SR2NX02)
Connections (extended):   Micro (Type D) HDMI, Combined AV/USB/Remote Micro USB Port
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 2.32 1.40
Cycle time for RAW shooting in single shot mode (seconds per frame):   1.32
Buffer size for RAW shooting in single shot mode (frames):   4
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): 0.8 7.5
Buffer size for JPEG shooting in burst mode (frames, max resolution): Unlimited 11
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): 0.48 seconds 0.35 seconds
Shutter lag (full AF, tele): 0.52 seconds  
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.060 seconds
Shutter lag (full AF, with flash):   0.62 seconds
Shutter Lag (prefocused): 0.078 seconds 0.044 seconds
Shutter Lag (notes):   Full AF Shutter Lag, Wide Area mode = 0.650s
Startup Time: 2.1 seconds 3.0 seconds
Play -> Record Time:   0.9 seconds
Flash cycle time, full power:   3.6 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 240 shots 360 shots
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary NB-8L Proprietary BP1310
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NB-8L Lithium-ion rechargeable 1 x Proprietary BP1310 lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): Yes Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Canon Software Suite CD-ROM intelli-studio 3.0, Samsung RAW Converter 4, PC Auto Backup, Adobe Reader
OS Compatibility: Windows, Mac OS Windows, Mac OS (except intelli-studio)
Miscellaneous
Notes & Features: Optical Image Stabilization, i-Contrast, Smart Auto, Face Detection self-timer. Available in Silver, Red and Blue. 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.