Reasons to choose QV-R40
Released in 2003, QV-R40 has about 38 mm² of sensor area, 4 MP effective resolution, and a 210 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Casio QV-R40
vs Casio QV-R51
VS
Sensor area
38 mm²
QV-R4038 mm²
QV-R51- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The QV-R40 and QV-R51 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
QV-R40MetricQV-R51
4 MPEffective pixels4.9 MP
7.11 × 5.33Sensor7.11 × 5.33
3.08 µmPixel pitch2.78 µm
9.47 µm²Pixel area7.73 µm²
10.56 MP/cm²Pixel density12.93 MP/cm²
4.87Crop factor4.87
—Maximum video—
210 gWeight168 g
Secure DigitalStorageMultiMedia, Secure Digital
AA (2) batteries (NiMH included)BatteryAA (2) batteries (NiMH included)
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 QV-R40 and QV-R51 have the same sensor area. The QV-R51 has the lighter body. The QV-R51 has the higher effective resolution. The QV-R51 is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose QV-R51
Released in 2004, QV-R51 has about 38 mm² of sensor area, 4.9 MP effective resolution, and a 168 g body. Use these values to narrow the field, not as an overall image-quality score.