• 1/2.3 inch 28.1mm2
  • 12.1 megapixels
  • 35.00mm - 140.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 14.0 megapixels
  • 28.00mm - 110.00mm (35mm eq.)
  • Detailed specifications
  • Canon PowerShot A1100 IS
  • Pentax Optio RS1500
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: A1100 IS RS1500
Alternate Model Number(s):    
Camera Format: Compact Ultra Compact
Currently Manufactured: No No
Retail Price: $199.99 $149.95
Street Price:   $89.99
Date Available: 2009-03-15 2011-04-30
Tripod Mount: Yes Yes
Weight: 5.5 oz (155 g) 4.5 oz (128 g)
includes batteries
Size: 3.8 x 2.5 x 1.2 in.
(95 x 62 x 31 mm) 		3.6 x 2.2 x 0.9 in.
(91 x 56 x 23 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CCD
Sensor Manufacturer:    
Effective Megapixels: 12.1 14.0
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 1.44 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3, 16:9 4:3, 16:9
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) 		4288 x 3216 (13.8 MP, 4:3),
4224 x 2376 (10.0 MP, 16:9),
3072 x 2304 (7.1 MP, 4:3),
1920 x 1080 (2.1 MP, 16:9),
640 x 480 (0.3 MP, 4:3)
Image File Format: JPEG (EXIF 2.2) JPEG (EXIF 2.3)
Continuous-mode frames/second: 2.0 n/a
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30)
320x240 (30) 		1280x720 (30)
1280x720 (15)
640x480 (30)
640x480 (15)
320x240 (30)
320x240 (15)
Movie File Format: AVI (Motion JPEG) AVI (Motion JPEG)
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes Yes
Video Usable as Viewfinder:
HD Video Out: No No
HD Video Connection:
Lens & Optics
Lens Mount: n/a n/a
Lens: Canon Zoom Lens Pentax Zoom; 6 elements in 5 groups, 3 aspheric
Focal Length (35mm equivalent): 35 - 140mm 28 - 110mm
Focal Length (actual): 6.2 - 24.8mm 4.9 - 19.6mm
Zoom Ratio: 4.00x 4.00x
Aperture Range: f/2.7 (W) to f/5.6 (T) f/3.2 (W) / f/5.9 (T) - ???
Integrated ND Filter: No No
Normal Focus Range: 50 cm to Infinity
19.7 in to Infinity 		40 cm to Infinity
15.7 in to Infinity
Macro Focus Range: 3 - 50 cm
1.2 - 19.7 in 		8 - 50 cm
3.1 - 19.7 in
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: Yes No
Digital Zoom: Yes Yes
Digital Zoom Values: Up to 4x Up to approx. 6.7x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: Contrast Detect AF with Face Detection Contrast Detection; 3-point AF, Spot AF, Auto tracking AF
Auto Focus Assist Light? Yes No
Manual Focus: No No
Viewfinder
Viewfinder: Optical / LCD LCD
Viewfinder Type: Real-image optical zoom  
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: Yes No
Rear Display: Yes Yes
Rear Display Size (inches): 2.5 3.0
Rear Display Resolution: 115,000 dots 230,000 dots
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):    
Minimum ISO (native):    
ISO Settings: Auto, 80, 100, 200, 400, 800, 1600, 3200* (* 3200 in special scene mode) Auto: 100-800, Digital SR 100-6400 (ISO 3200-6400 at 5M) Manual: 100-6400 (ISO 3200-6400 at 5M)
Auto ISO Mode: Yes Yes
White Balance Settings: Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom Auto, Daylight, Shade, Tungsten, Fluorescent, Manual
Shutter Speed Range: 1/1600 - 15 sec 1/2000 - 4 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, Face Detect AE TTL Multi-segment
Program Auto Exposure: Yes Yes
Aperture Priority: No No
Shutter Priority: No No
Full Manual Exposure: No No
Creative Exposure Modes: Easy, Portrait, Landscape, Special Scene (Night Scene, Foliage, Snow, Beach, Sunset, Fireworks, Aquarium, ISO 3200), Indoor, Kids & Pets, Night Snapshot, Movie Portrait, Night Scene Portrait, Night Scene, Movie, Landscape, Blue Sky, Sunset, Flower, Sport, Pet, Digital SR (ISO 3200-6400 5M), Natural Skin Tone, Kids, Frame Composite, Food, Candlelight, Text, Surf & Snow, Digital Panorama (2M per frame), Half Length Portrait (3M)
Self Timer: 2 or 10 seconds 2 or 10 seconds
Time Lapse (intervalometer):   No
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 Off, Flash On, Auto + Redeye, On + Redeye
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: Auto ISO: 1-13 ft./30cm-4.0m (W), 1-6.6 ft./30cm-2.0m (T) Auto ISO: 16ft (wide), 8.5ft (tele)
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
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No No
Uncompressed Format:    
Movie File Format: AVI (Motion JPEG) AVI (Motion JPEG)
Included Memory: No memory included 21.6 MB
Included Memory Type:   Internal
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 No
DPOF Compliant: Yes Yes
Remote Control:
Remote Control Type:    
Connections (extended):   Optional K-AC119 AC adapter kit
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):    
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?
JPEG shooting speed in burst mode (fps, max resolution): 2.0  
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):    
Shutter lag (full AF, tele):    
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):    
Shutter Lag (notes):    
Startup Time:    
Play -> Record Time:    
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View): 350 shots (NiMH AA)  
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: 2 x AA Proprietary D-LI108
Usable Battery Types: Alkaline Lithium disposables; NiMH rechargeables Lithium-ion rechargeable
Batteries Included: 2 x AA Alkaline disposables 1 x Proprietary D-LI108 lithium-ion rechargeable
Battery Charger Included (dedicated charger or AC/USB adapter): No Yes
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software: Canon Software Suite CD-ROM Software CD-ROM S-SW116 with MediaImpression 3.0 for PENTAX (Windows) / MediaImpression 2.1 for PENTAX (Mac)
OS Compatibility: Windows, Mac OS  
Miscellaneous
Notes & Features: Optical Image Stabilization, Face Detection, Motion Detection. Available in grey, blue, pink and green. Very closely related to RS1000. Only differences are clip-on (screwless) face plates rather than screw-on kind, slightly more internal memory, newer software CD, and slight differences to scene and Auto Picture modes.