Reasons to choose JD 2.1 FF
Released in 2002, JD 2.1 FF has about 15 mm² of sensor area, 2.1 MP effective resolution, and a 150 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Jenoptik JD 2.1 FF
vs Jenoptik JD 2100 AF
VS
Sensor area
15 mm²
JD 2.1 FF21 mm²
JD 2100 AF- Area ratio
- 1.41:1
- Absolute difference
- 6 mm²
- Relative difference
- 40.6%
The JD 2100 AF has the larger sensor area. More area usually means greater light-gathering potential, though real image quality still depends on sensor architecture and generation.
Key specification differences
JD 2.1 FFMetricJD 2100 AF
2.1 MPEffective pixels2.11 MP
4.5 × 3.37Sensor5.33 × 4
2.69 µmPixel pitch3.18 µm
7.22 µm²Pixel area10.1 µm²
13.85 MP/cm²Pixel density9.9 MP/cm²
7.7Crop factor6.49
—Maximum video—
150 gWeight180 g
MultiMedia, Secure DigitalStorageCompactFlash type I
2x AABattery4x AA
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 JD 2100 AF has the larger sensor area. The JD 2.1 FF has the lighter body. The JD 2100 AF has the higher effective resolution. The JD 2.1 FF and JD 2100 AF were both released in 2002. Also consider the lens system and subjects you shoot.
Reasons to choose JD 2100 AF
Released in 2002, JD 2100 AF has about 21 mm² of sensor area, 2.11 MP effective resolution, and a 180 g body. Use these values to narrow the field, not as an overall image-quality score.