Reasons to choose Optio E40
Released in 2007, Optio E40 has about 25 mm² of sensor area, 8.1 MP effective resolution, and a 130 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Pentax Optio E40
vs Pentax Optio W30
VS
Sensor area
25 mm²
Optio E4025 mm²
Optio W30- Area ratio
- 1:1
- Absolute difference
- 0 mm²
- Relative difference
- 0%
The Optio E40 and Optio W30 have the same sensor area. Compare pixel density, sensor architecture, and release generation to understand likely image-quality differences.
Key specification differences
Optio E40MetricOptio W30
8.1 MPEffective pixels7.1 MP
5.75 × 4.32Sensor5.75 × 4.32
1.75 µmPixel pitch1.87 µm
3.07 µm²Pixel area3.5 µm²
32.61 MP/cm²Pixel density28.58 MP/cm²
6.02Crop factor6.02
—Maximum video—
130 gWeight140 g
SDHC, Secure DigitalStorageSDHC, Secure 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 E40 and Optio W30 have the same sensor area. The Optio E40 has the lighter body. The Optio E40 has the higher effective resolution. The Optio E40 and Optio W30 were both released in 2007. Also consider the lens system and subjects you shoot.
Reasons to choose Optio W30
Released in 2007, Optio W30 has about 25 mm² of sensor area, 7.1 MP effective resolution, and a 140 g body. Use these values to narrow the field, not as an overall image-quality score.