Reasons to choose Optio 33LF
Released in 2003, Optio 33LF has about 21 mm² of sensor area, 3.1 MP effective resolution, and a 176 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Pentax Optio 33LF
vs Pentax Optio S4i
VS
Sensor area
21 mm²
Optio 33LF25 mm²
Optio S4i- Area ratio
- 1.17:1
- Absolute difference
- 4 mm²
- Relative difference
- 16.5%
The Optio S4i 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
Optio 33LFMetricOptio S4i
3.1 MPEffective pixels4 MP
5.33 × 4Sensor5.75 × 4.32
2.62 µmPixel pitch2.49 µm
6.88 µm²Pixel area6.21 µm²
14.54 MP/cm²Pixel density16.1 MP/cm²
6.49Crop factor6.02
—Maximum video—
176 gWeight105 g
MultiMedia, 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 S4i has the larger sensor area. The Optio S4i has the lighter body. The Optio S4i has the higher effective resolution. The Optio S4i is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose Optio S4i
Released in 2004, Optio S4i has about 25 mm² of sensor area, 4 MP effective resolution, and a 105 g body. Use these values to narrow the field, not as an overall image-quality score.