Reasons to choose PowerShot S20
Released in 2000, PowerShot S20 has about 38 mm² of sensor area, 3.1 MP effective resolution, and a 320 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Canon PowerShot S20
vs Canon PowerShot S40
VS
Sensor area
38 mm²
PowerShot S2038 mm²
PowerShot S40- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The PowerShot S20 and PowerShot S40 have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
These cameras were released 1 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
PowerShot S20MetricPowerShot S40
3.1 MPEffective pixels3.9 MP
7.11 × 5.33Sensor7.11 × 5.33
3.5 µmPixel pitch3.12 µm
12.22 µm²Pixel area9.72 µm²
8.18 MP/cm²Pixel density10.29 MP/cm²
4.87Crop factor4.87
—Maximum video—
320 gWeight260 g
CompactFlash type I, CompactFlash type II, MicrodriveStorageCompactFlash type I, CompactFlash type II, Microdrive
Canon NiMHBatteryCanon Lithium-Ion Li-ion battery
Amber marks the value that is generally preferable in this comparison context. It is not an overall camera score.
How to choose between these cameras
The PowerShot S20 and PowerShot S40 have the same sensor area. The PowerShot S40 has the lighter body. The PowerShot S40 has the higher effective resolution. The PowerShot S40 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose PowerShot S40
Released in 2001, PowerShot S40 has about 38 mm² of sensor area, 3.9 MP effective resolution, and a 260 g body. Use these values to narrow the field, not as an overall image-quality score.