Reasons to choose DC C640
Released in 2008, DC C640 has about 42 mm² of sensor area, 6 MP effective resolution, and a 140 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
BenQ DC C640
vs BenQ DC P860
VS
Sensor area
42 mm²
DC C64038 mm²
DC P860- Area ratio
- 1.12:1
- Absolute difference
- 5 mm²
- Relative difference
- 12.1%
The DC C640 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 1 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
DC C640MetricDC P860
6 MPEffective pixels8 MP
7.53 × 5.64Sensor7.11 × 5.33
2.66 µmPixel pitch2.18 µm
7.08 µm²Pixel area4.74 µm²
14.13 MP/cm²Pixel density21.11 MP/cm²
4.6Crop factor4.87
—Maximum video—
140 gWeight182 g
Secure DigitalStorageSecure Digital
2x AABattery2x AA
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 DC C640 has the larger sensor area. The DC C640 has the lighter body. The DC P860 has the higher effective resolution. The DC C640 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose DC P860
Released in 2007, DC P860 has about 38 mm² of sensor area, 8 MP effective resolution, and a 182 g body. Use these values to narrow the field, not as an overall image-quality score.