• 1/2.3 inch 28.1mm2
  • 12.1 megapixels
  • 28.00mm - 112.00mm (35mm eq.)
  • APS-C 369.7mm2
  • 16.2 megapixels
  • ISO 100 - 12,800
  • Detailed specifications
  • Canon PowerShot SD940 IS
  • Sony Alpha DSLR-A580
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: SD940 IS DSLR-A580
Alternate Model Number(s): Digital IXUS 120 IS  
Camera Format: Ultra Compact SLR
Currently Manufactured: No No
Retail Price: $299.99 $899.99
Street Price: $299.95  
Date Available: 2009-09-15 2010-11-30
Tripod Mount: Yes Yes
Weight: 4.9 oz (140 g)
includes batteries
24.5 oz (694 g)
includes batteries
Size: 3.5 x 2.2 x 0.8 in.
(90 x 55 x 20 mm)
5.4 x 4.1 x 3.3 in.
(137 x 104 x 84 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CMOS
Sensor Manufacturer:   Sony
Effective Megapixels: 12.1 16.2
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 4.82 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3, 16:9 3:2, 16:9
Color Filter Type: RGBG RGBG
Anti Aliasing Filter:   Fixed
Self-Cleaning: No Yes
Sensor shift image stabilization: No Yes
On-Sensor Phase Detect: No No
DxO Sensor Score:   80
DxO Color Depth Score (bits):   23.8
DxO Dynamic Range Score (evs):   13.3
DxO Maximum Effective ISO Score (iso):   1,123
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)
4912 x 3264 (16.0 MP, 3:2),
4912 x 2760 (13.6 MP, 16:9),
3568 x 2368 (8.4 MP, Other),
3568 x 2000 (7.1 MP, 16:9),
2448 x 1624 (4.0 MP, Other),
2448 x 1376 (3.4 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 2.2) JPEG, RAW (ARW 2.2), RAW+JPEG
Continuous-mode frames/second: 0.8 7.1
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1280x720 (30)
640x480 (30)
320x240 (30)
1920x1080 (60i/​50i)
1440x1080 (30/​25)
640x480 (30/​25)
Movie File Format: MOV (Image: H.264, Audio: PCM) AVCHD, MP4
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: n/a Sony Alpha (Minolta A)
Lens: Canon Zoom Lens Sony 18-55mm f/3.5-5.6 DT SAM
Focal Length (35mm equivalent): 28 - 112mm 27 - 83mm
Focal Length (actual): 5 - 20mm 18 - 55mm
Zoom Ratio: 4.00x 3.00x
Aperture Range: f/2.8 (W) - f/5.9 (T) f/3.5 - 22 (W), f/5.6 - 36 (T)
Integrated ND Filter: No No
Normal Focus Range: 30 cm to Infinity
11.8 in to Infinity
25 cm to Infinity
9.8 in to Infinity
Macro Focus Range: 3 - 50 cm
1.2 - 19.7 in
 
Filter Thread: n/a 55.0mm
Thread Type: n/a n/a
Optical Image Stabilization: Yes No
Digital Zoom: Yes No
Digital Zoom Values: Up to 4x n/a
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect AF with Face Detection Phase Detection: 15 points (3 points cross type), 11 points in viewfinder mode; Wide, Spot, Local.
Auto Focus Assist Light? Yes Yes
Manual Focus: No Yes
Viewfinder
Viewfinder: LCD Optical / LCD
Viewfinder Type:   SLR type; eye-level pentamirror, 95% coverage, 0.80x mag., 19mm eyepoint, -2.5 to +1 diopter
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):   0.53x
Viewfinder Magnification (nominal/claimed):   0.80x
Display
Eye-level Viewfinder: No Yes
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 3.0
Rear Display Resolution: 230,000 dots 921,600 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, 3200* (*special scene mode) 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, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom Auto, Daylight, Shade, Cloudy, Incandescent, Fluorescent, Flash, Custom, Color Temp./ Filter (2500 – 9900K with 19-step Magenta/Green compensation)
Shutter Speed Range: 1/1500 - 15 sec 1/4000 - 30 sec
Bulb Mode: No Yes
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: Evaluative, Center-weighted average, Spot (center), Face Detect AE 40-segment Multi Segment, Center-weighted, Spot; (1200 zone evaluative metering in Live View)
Program Auto Exposure: Yes Yes
Aperture Priority: No Yes
Shutter Priority: No Yes
Full Manual Exposure: No Yes
Creative Exposure Modes: Portrait, Foliage, Snow, Beach, Sunset, Fireworks, Aquarium, Underwater, ISO 3200, Indoor, Kids & Pets, Night Snapshot, Color Accent, Color Swap, Digital Macro, Long Shutter, Stitch Assist 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 (with mirror lock-up) 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 Auto, Off, Fill-flash, Rear sync, Wireless, High-Speed sync, Slow sync, Red-eye reduction: On/Off
Flash Guide Number (ISO 100): n/a 12.0 m / 39.4 ft.
Flash Range Description: Auto ISO: 1-13 ft./30cm-4.0m (W), 1.6-6.6 ft./50cm-2.0m (T) Lens dependent
Max Flash Sync:   1/160
Flash Exposure Compensation:   +/- 2.0 EV in 0.3EV steps
External Flash Connection: n/a Hot shoe
Built-In Wireless Flash Control:   Full TTL exposure
Image Storage
Usable Memory Types: SD / SDHC MS PRO Duo / SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No Yes
Uncompressed Format:   RAW (ARW 2.2), RAW+JPEG
Movie File Format: MOV (Image: H.264, Audio: PCM) AVCHD, MP4
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
Remote Control Type:   Optional Wireless or Wired
Connections (extended): Mini-HDMI, DC input DC input, HDMI mini connector (Type-C), BRAVIA Sync (link menu), PhotoTV HD; Wired Remote, External Micophone Jack
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 2.37 0.60
Cycle time for RAW shooting in single shot mode (seconds per frame):   0.60
Buffer size for RAW shooting in single shot mode (frames):   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): 0.8 7.1
Buffer size for JPEG shooting in burst mode (frames, max resolution): Unlimited 32
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 0.30 seconds
Shutter lag (full AF, tele): 0.55 seconds  
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):   0.192 seconds
Shutter lag (full AF, with flash):   0.41 seconds
Shutter Lag (prefocused): 0.077 seconds 0.084 seconds
Shutter Lag (notes):   Full Autofocus Wide Area AF lag = 0.306s Live View: Quick AF lag = 0.193s Focus Check PD AF lag = 0.618s Focus Check CD AF lag = 1.691s Prefocused lag = 0.090s
Startup Time: 1.9 seconds 0.8 seconds
Play -> Record Time:   0.5 seconds
Flash cycle time, full power: 4.4 seconds 3.6 seconds
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 220 shots  
Battery Life, Still (CIPA Rating OVF/EVF):   1050 shots
Battery Life, Video:    
Battery Form Factor: Proprietary NB-4L Proprietary NP-FM500H
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NB-4L 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:
Internal Charging Supported:
Software
Included Software: Canon Software Suite CD-ROM Software/USB Driver CD-ROM
OS Compatibility: Windows, Mac OS Windows XP SP3/Vista SP2/7, Mac OS X (v.10.3 +)
Miscellaneous
Notes & Features: Optical Image Stabilization, Smart Auto, Face, Blink and Motion Detection, Intelligent Contrast Correction, HD Movies, HDMI Output. Available in Blue, Black, Silver and Brown. 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.