Reasons to choose Digital IXUS 870 IS
Released in 2008, Digital IXUS 870 IS has about 28 mm² of sensor area, 10 MP effective resolution, and a 195 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Canon Digital IXUS 870 IS
vs Canon PowerShot A490
VS
Sensor area
28 mm²
Digital IXUS 870 IS28 mm²
PowerShot A490- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The Digital IXUS 870 IS and PowerShot A490 have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
These cameras were released 2 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
Digital IXUS 870 ISMetricPowerShot A490
10 MPEffective pixels10 MP
6.16 × 4.62Sensor6.16 × 4.62
1.69 µmPixel pitch1.69 µm
2.85 µm²Pixel area2.85 µm²
35.14 MP/cm²Pixel density35.14 MP/cm²
5.62Crop factor5.62
—Maximum video—
195 gWeight135 g
SD/SDHC/MMC cardStorageSDHC, Secure Digital
Lithium-Ion NB-5L battery Li-ion batteryBattery2 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 Digital IXUS 870 IS and PowerShot A490 have the same sensor area. The PowerShot A490 has the lighter body. The Digital IXUS 870 IS and PowerShot A490 have the same 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.