Reasons to choose Optio S40
Released in 2004, Optio S40 has about 25 mm² of sensor area, 4 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
Pentax Optio S40
vs Pentax Optio WP
VS
Sensor area
25 mm²
Optio S4025 mm²
Optio WP- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The Optio S40 and Optio WP 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
Optio S40MetricOptio WP
4 MPEffective pixels4.9 MP
5.75 × 4.32Sensor5.75 × 4.32
2.49 µmPixel pitch2.25 µm
6.21 µm²Pixel area5.07 µm²
16.1 MP/cm²Pixel density19.73 MP/cm²
6.02Crop factor6.02
—Maximum video—
125 gWeight120 g
Secure DigitalStorageSecure Digital
AA (2) batteries (NiMH recommended)BatteryLithium-Ion rechargeable 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 Optio S40 and Optio WP have the same sensor area. The Optio WP has the lighter body. The Optio WP has the higher effective resolution. The Optio WP is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose Optio WP
Released in 2005, Optio WP has about 25 mm² of sensor area, 4.9 MP effective resolution, and a 120 g body. Use these values to narrow the field, not as an overall image-quality score.