Reasons to choose EI-100
Released in 2001, EI-100 has about 15 mm² of sensor area, 1.2 MP effective resolution, and a 240 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Pentax EI-100
vs Pentax Optio 330GS
VS
Sensor area
15 mm²
EI-10021 mm²
Optio 330GS- Area ratio
- 1.41:1
- Absolute difference
- 6 mm²
- Relative difference
- 40.6%
The Optio 330GS 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
EI-100MetricOptio 330GS
1.2 MPEffective pixels3.2 MP
4.5 × 3.37Sensor5.33 × 4
3.55 µmPixel pitch2.58 µm
12.64 µm²Pixel area6.66 µm²
7.91 MP/cm²Pixel density15.01 MP/cm²
7.7Crop factor6.49
—Maximum video—
240 gWeight230 g
Internal storageStorageCompactFlash type I
AA (4) batteries (NiMH recommended)BatteryAA (2) batteries (NiMH recommended)
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 330GS has the larger sensor area. The Optio 330GS has the lighter body. The Optio 330GS has the higher effective resolution. The Optio 330GS is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose Optio 330GS
Released in 2002, Optio 330GS has about 21 mm² of sensor area, 3.2 MP effective resolution, and a 230 g body. Use these values to narrow the field, not as an overall image-quality score.