Reasons to choose PowerShot A470
Released in 2008, PowerShot A470 has about 25 mm² of sensor area, 7.1 MP effective resolution, and a 165 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Canon PowerShot A470
vs Canon PowerShot A490
VS
Sensor area
25 mm²
PowerShot A47028 mm²
PowerShot A490- Area ratio
- 1.15:1
- Absolute difference
- 4 mm²
- Relative difference
- 14.6%
The PowerShot A490 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 A470MetricPowerShot A490
7.1 MPEffective pixels10 MP
5.75 × 4.32Sensor6.16 × 4.62
1.87 µmPixel pitch1.69 µm
3.5 µm²Pixel area2.85 µm²
28.58 MP/cm²Pixel density35.14 MP/cm²
6.02Crop factor5.62
—Maximum video—
165 gWeight135 g
SDHC, Secure DigitalStorageSDHC, Secure Digital
AA (2) batteries (NiMH recommended)Battery2 x AA batteries (Alkaline or NiMH)
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 A490 has the larger sensor area. The PowerShot A490 has the lighter body. The PowerShot A490 has the higher effective resolution. The PowerShot A490 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose PowerShot A490
Released in 2010, PowerShot A490 has about 28 mm² of sensor area, 10 MP effective resolution, and a 135 g body. Use these values to narrow the field, not as an overall image-quality score.