• 1/2.3 inch 28.1mm2
  • 12.1 megapixels
  • 28.00mm - 112.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 20.0 megapixels
  • 25.00mm - 300.00mm (35mm eq.)
  • Detailed specifications
  • Canon PowerShot SD940 IS
  • Canon PowerShot ELPH 170 IS
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Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: SD940 IS 170 IS
Alternate Model Number(s): Digital IXUS 120 IS IXUS 170
Camera Format: Ultra Compact Ultra Compact
Currently Manufactured: No No
Retail Price: $299.99 $149.99
Street Price: $299.95 $119.00
Date Available: 2009-09-15 2015-02-15
Tripod Mount: Yes Yes
Weight: 4.9 oz (140 g)
includes batteries
5.0 oz (141 g)
includes batteries
Size: 3.5 x 2.2 x 0.8 in.
(90 x 55 x 20 mm)
3.9 x 2.3 x 0.9 in.
(100 x 58 x 23 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CCD
Sensor Manufacturer:    
Effective Megapixels: 12.1 20.0
Sensor Format: 1/2.3 inch 1/2.3 inch
Sensor size: 28.0735mm2 (6.17mm x 4.55mm) 28.0735mm2 (6.17mm x 4.55mm)
Approximate Pixel Pitch: 1.54 microns 1.20 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3, 16:9 4:3
Color Filter Type: RGBG RGBG
Anti Aliasing Filter:    
Self-Cleaning: No No
Sensor shift image stabilization: No No
On-Sensor Phase Detect: No No
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
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)
5152 x 3864 (19.9 MP, 4:3),
5152 x 2896 (14.9 MP, 16:9),
3648 x 2736 (10.0 MP, 4:3),
2048 x 1536 (3.1 MP, 4:3),
640 x 480 (0.3 MP, 4:3),
2560 x 1920 (4.9 MP, 4:3)
Image File Format: JPEG (EXIF 2.2) JPEG (EXIF 2.3)
Continuous-mode frames/second: 0.8 0.8
Video Capture
Can take movies: Yes Yes
Movie Resolution: 1280x720 (30)
640x480 (30)
320x240 (30)
1280x720 (25p)
640x480 (30p)
Movie File Format: MOV (Image: H.264, Audio: PCM) MOV (Image: MPEG-4 AVC/H.264; Audio: Linear PCM (Monaural))
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out: Yes No
HD Video Connection: HDMI
Lens & Optics
Lens Mount: n/a n/a
Lens: Canon Zoom Lens Canon Zoom Lens
Focal Length (35mm equivalent): 28 - 112mm 25 - 300mm
Focal Length (actual): 5 - 20mm 4.5 - 54mm
Zoom Ratio: 4.00x 12.00x
Aperture Range: f/2.8 (W) - f/5.9 (T) f/3.6 (W) / f/7.0 (T) - ??
Integrated ND Filter: No No
Normal Focus Range: 30 cm to Infinity
11.8 in to Infinity
5 cm to Infinity
2.0 in to Infinity
Macro Focus Range: 3 - 50 cm
1.2 - 19.7 in
1 - 50 cm
0.4 - 19.7 in
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: Yes Yes
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 4x Up to 4x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect AF with Face Detection Contrast Detect AF with Face Detection
Auto Focus Assist Light? Yes Yes
Manual Focus: No No
Viewfinder
Viewfinder: LCD No / LCD
Viewfinder Type:    
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: No No
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 2.7
Rear Display Resolution: 230,000 dots 230,400 dots (78,000 px)
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 10.0x 10.0x
Top Deck Display:
Exposure
Maximum ISO (native):   1600
Minimum ISO (native):   100
ISO Settings: Auto, 80, 100, 200, 400, 800, 1600, 3200* (*special scene mode) Auto, ISO 100 - 1600
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom
Shutter Speed Range: 1/1500 - 15 sec 1/2000 - 15 sec
Bulb Mode: No No
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 Evaluative, Center-weighted average, Spot (center)
Program Auto Exposure: Yes Yes
Aperture Priority: No No
Shutter Priority: No No
Full Manual Exposure: No No
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, Face Self-timer, Low Light, Fisheye Effect, Miniature Effect, Toy Camera Effect, Monochrome, Super Vivid, Poster Effect, Snow, Fireworks, Long Shutter
Self Timer: 2 or 10 seconds 2, 10, Custom 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, Flash On, Slow Synchro, Flash Off
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: Auto ISO: 1-13 ft./30cm-4.0m (W), 1.6-6.6 ft./50cm-2.0m (T) Auto ISO: 1.6 ft. - 13 ft. (W), 3.3 - 6.6 ft. (T) (50cm - 4.0m (W), (1.0m - 2.0m (T))
Max Flash Sync:    
Flash Exposure Compensation:    
External Flash Connection: n/a n/a
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: SD / SDHC SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No No
Uncompressed Format:    
Movie File Format: MOV (Image: H.264, Audio: PCM) MOV (Image: MPEG-4 AVC/H.264; Audio: Linear PCM (Monaural))
Included Memory: No memory included No memory included
Included Memory Type:    
Connectivity
Built-In Wi-Fi: No No
NFC: No 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:
Remote Control Type:    
Connections (extended): Mini-HDMI, DC input  
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution): 2.37  
Cycle time for RAW shooting in single shot mode (seconds per frame):    
Buffer size for RAW shooting in single shot mode (frames):    
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): 0.8 0.8
Buffer size for JPEG shooting in burst mode (frames, max resolution): Unlimited  
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  
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):    
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused): 0.077 seconds  
Shutter Lag (notes):    
Startup Time: 1.9 seconds  
Play -> Record Time:    
Flash cycle time, full power: 4.4 seconds  
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 220 shots 200 shots
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary NB-4L Proprietary NB-11LH/NB-11L
Usable Battery Types: Lithium-ion rechargeable Lithium-ion rechargeable
Batteries Included: 1 x Proprietary NB-4L Lithium-ion rechargeable 1 x Proprietary NB-11LH 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: Canon Software Suite CD-ROM  
OS Compatibility: Windows, Mac OS  
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. Intelligent IS, 720p HD videos, available in blue, silver or black.