Reasons to choose PowerShot A3100 IS
Released in 2010, PowerShot A3100 IS has about 28 mm² of sensor area, 12.1 MP effective resolution, and a 125 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Canon PowerShot A3100 IS
vs Canon PowerShot G10
VS
Sensor area
28 mm²
PowerShot A3100 IS42 mm²
PowerShot G10- Area ratio
- 1.49:1
- Absolute difference
- 14 mm²
- Relative difference
- 49.2%
The PowerShot G10 has the larger sensor area. More area usually means greater light-gathering potential, though real image quality still depends on sensor architecture and generation.
These cameras were released 2 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
PowerShot A3100 ISMetricPowerShot G10
12.1 MPEffective pixels14.7 MP
6.16 × 4.62Sensor7.53 × 5.64
1.53 µmPixel pitch1.7 µm
2.35 µm²Pixel area2.89 µm²
42.52 MP/cm²Pixel density34.61 MP/cm²
5.62Crop factor4.6
—Maximum video—
125 gWeight350 g
SDHC, Secure DigitalStorageSDHC, Secure Digital
Lithium-Ion NB-8L rechargeable battery Li-ion batteryBatteryLithium-Ion NB-7L rechargeable battery 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 G10 has the larger sensor area. The PowerShot A3100 IS has the lighter body. The PowerShot G10 has the higher effective resolution. The PowerShot A3100 IS is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose PowerShot G10
Released in 2008, PowerShot G10 has about 42 mm² of sensor area, 14.7 MP effective resolution, and a 350 g body. Use these values to narrow the field, not as an overall image-quality score.