Canon A3100 IS vs Pentax VS20
94 Imaging
35 Features
14 Overall
26


90 Imaging
39 Features
35 Overall
37
Canon A3100 IS vs Pentax VS20 Key Specs
(Full Review)
- 12MP - 1/2.3" Sensor
- 2.7" Fixed Display
- ISO 100 - 1600
- Optical Image Stabilization
- 640 x 480 video
- 35-140mm (F2.7-5.6) lens
- 165g - 97 x 58 x 28mm
- Revealed January 2010
(Full Review)
- 16MP - 1/2.3" Sensor
- 3" Fixed Display
- ISO 100 - 6400
- Sensor-shift Image Stabilization
- 1280 x 720 video
- 28-560mm (F3.1-4.8) lens
- 235g - 111 x 61 x 38mm
- Announced January 2012

Canon A3100 IS vs Pentax VS20 Overview
In this article, we are reviewing the Canon A3100 IS versus Pentax VS20, former being a Small Sensor Compact while the other is a Small Sensor Superzoom by companies Canon and Pentax. There exists a sizable gap among the image resolutions of the A3100 IS (12MP) and VS20 (16MP) but they come with the same exact sensor measurements (1/2.3").

The A3100 IS was released 3 years before the VS20 and that is a fairly significant difference as far as camera technology is concerned. Both of these cameras offer the identical body type (Compact).
Before we go through a more detailed comparison, below is a short highlight of how the A3100 IS matches up versus the VS20 in regards to portability, imaging, features and an overall grade.

Canon A3100 IS vs Pentax VS20 Gallery
Here is a sample of the gallery pics for Canon PowerShot A3100 IS & Pentax Optio VS20. The complete galleries are available at Canon A3100 IS Gallery & Pentax VS20 Gallery.
Reasons to pick Canon A3100 IS over the Pentax VS20
A3100 IS | VS20 |
---|
Reasons to pick Pentax VS20 over the Canon A3100 IS
VS20 | A3100 IS | |||
---|---|---|---|---|
Announced | January 2012 | ![]() | January 2010 | More recent by 25 months |
Manual focus | ![]() | Dial exact focusing | ||
Display sizing | 3" | ![]() | 2.7" | Larger display (+0.3") |
Display resolution | 460k | ![]() | 230k | Sharper display (+230k dot) |
Common features in the Canon A3100 IS and Pentax VS20
A3100 IS | VS20 | |||
---|---|---|---|---|
Display type | Fixed | ![]() | Fixed | Fixed display |
Selfie screen | ![]() | Neither features selfie screen | ||
Touch friendly display | ![]() | Neither features Touch friendly display |
Canon A3100 IS vs Pentax VS20 Physical Comparison
When you are planning to lug around your camera frequently, you are going to need to factor its weight and measurements. The Canon A3100 IS enjoys exterior dimensions of 97mm x 58mm x 28mm (3.8" x 2.3" x 1.1") and a weight of 165 grams (0.36 lbs) while the Pentax VS20 has proportions of 111mm x 61mm x 38mm (4.4" x 2.4" x 1.5") along with a weight of 235 grams (0.52 lbs).
Contrast the Canon A3100 IS versus Pentax VS20 in our newest Camera & Lens Size Comparison Tool.
Take into consideration, the weight of an ILC will vary depending on the lens you are employing at that time. The following is the front view proportions comparison of the A3100 IS vs the VS20.

Taking into consideration dimensions and weight, the portability rating of the A3100 IS and VS20 is 94 and 90 respectively.

Canon A3100 IS vs Pentax VS20 Sensor Comparison
Sometimes, it's tough to imagine the gap in sensor measurements only by checking out a spec sheet. The visual here may offer you a better sense of the sensor dimensions in the A3100 IS and VS20.
As you can see, each of these cameras offer the same exact sensor sizing but different MP. You can expect to see the Pentax VS20 to provide more detail as a result of its extra 4MP. Greater resolution will make it easier to crop photos a little more aggressively. The older A3100 IS will be behind when it comes to sensor technology.

Canon A3100 IS vs Pentax VS20 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Canon A3100 IS vs Pentax VS20 Specifications
Canon PowerShot A3100 IS | Pentax Optio VS20 | |
---|---|---|
General Information | ||
Manufacturer | Canon | Pentax |
Model type | Canon PowerShot A3100 IS | Pentax Optio VS20 |
Category | Small Sensor Compact | Small Sensor Superzoom |
Revealed | 2010-01-05 | 2012-01-25 |
Physical type | Compact | Compact |
Sensor Information | ||
Sensor type | CCD | CCD |
Sensor size | 1/2.3" | 1/2.3" |
Sensor measurements | 6.17 x 4.55mm | 6.08 x 4.56mm |
Sensor surface area | 28.1mm² | 27.7mm² |
Sensor resolution | 12MP | 16MP |
Anti alias filter | ||
Aspect ratio | 4:3 and 16:9 | 1:1, 4:3 and 16:9 |
Peak resolution | 4000 x 3000 | 4608 x 3456 |
Highest native ISO | 1600 | 6400 |
Min native ISO | 100 | 100 |
RAW files | ||
Autofocusing | ||
Focus manually | ||
Autofocus touch | ||
Autofocus continuous | ||
Single autofocus | ||
Autofocus tracking | ||
Selective autofocus | ||
Center weighted autofocus | ||
Multi area autofocus | ||
Autofocus live view | ||
Face detect focus | ||
Contract detect focus | ||
Phase detect focus | ||
Total focus points | 9 | 3 |
Lens | ||
Lens mount type | fixed lens | fixed lens |
Lens zoom range | 35-140mm (4.0x) | 28-560mm (20.0x) |
Largest aperture | f/2.7-5.6 | f/3.1-4.8 |
Macro focusing range | 3cm | 3cm |
Focal length multiplier | 5.8 | 5.9 |
Screen | ||
Display type | Fixed Type | Fixed Type |
Display size | 2.7" | 3" |
Resolution of display | 230k dots | 460k dots |
Selfie friendly | ||
Liveview | ||
Touch operation | ||
Display tech | - | TFT color LCD with Anti-reflective coating |
Viewfinder Information | ||
Viewfinder type | None | None |
Features | ||
Min shutter speed | 15s | 4s |
Max shutter speed | 1/1600s | 1/2500s |
Continuous shutter rate | 1.0 frames/s | 1.0 frames/s |
Shutter priority | ||
Aperture priority | ||
Manual mode | ||
Set white balance | ||
Image stabilization | ||
Integrated flash | ||
Flash distance | 3.00 m | 2.80 m |
Flash options | Auto, On, Off, Red-Eye, Fill-in, Slow Sync | Auto, On, Off, Red-eye, Soft |
Hot shoe | ||
AEB | ||
White balance bracketing | ||
Exposure | ||
Multisegment | ||
Average | ||
Spot | ||
Partial | ||
AF area | ||
Center weighted | ||
Video features | ||
Video resolutions | 640 x 480 (30 fps), 320 x 240 (30 fps) | 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) |
Highest video resolution | 640x480 | 1280x720 |
Video format | Motion JPEG | Motion JPEG |
Microphone support | ||
Headphone support | ||
Connectivity | ||
Wireless | None | Eye-Fi Connected |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | None | None |
Physical | ||
Environmental sealing | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 165 grams (0.36 pounds) | 235 grams (0.52 pounds) |
Dimensions | 97 x 58 x 28mm (3.8" x 2.3" x 1.1") | 111 x 61 x 38mm (4.4" x 2.4" x 1.5") |
DXO scores | ||
DXO Overall rating | not tested | not tested |
DXO Color Depth rating | not tested | not tested |
DXO Dynamic range rating | not tested | not tested |
DXO Low light rating | not tested | not tested |
Other | ||
Battery ID | NB-8L | D-LI122 |
Self timer | Yes (2, 10, Custom, Face) | Yes (2 or 10 sec) |
Time lapse feature | ||
Type of storage | SD/SDHC/SDXC/MMC/MMCplus/HD MMCplus | SD/SDHC/SDXC, Internal |
Card slots | 1 | 1 |
Retail cost | $159 | $106 |