Reasons to choose Dynax 7D
Released in 2004, Dynax 7D has about 369 mm² of sensor area, 6.31 MP effective resolution, and a 760 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Konica-Minolta Dynax 7D
vs Sigma SD9
VS
Sensor area
369 mm²
Dynax 7D286 mm²
SD9- Area ratio
- 1.29:1
- Absolute difference
- 83 mm²
- Relative difference
- 29.2%
The Dynax 7D 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 2 years apart. Consider sensor generation when comparing pixel metrics.
Key specification differences
Dynax 7DMetricSD9
6.31 MPEffective pixels3.4 MP
23.5 × 15.7Sensor20.7 × 13.8
7.65 µmPixel pitch9.17 µm
58.47 µm²Pixel area84.02 µm²
1.71 MP/cm²Pixel density1.19 MP/cm²
1.53Crop factor1.74
—Maximum video—
760 gWeight803 g
CompactFlash type I, CompactFlash type IIStorageCompactFlash type I, CompactFlash type II, Microdrive
Li-Ion Li-ion batteryBatteryLithium-Ion rechargeable battery 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 Dynax 7D has the larger sensor area. The Dynax 7D has the lighter body. The Dynax 7D has the higher effective resolution. The Dynax 7D is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose SD9
Released in 2002, SD9 has about 286 mm² of sensor area, 3.4 MP effective resolution, and a 803 g body. Use these values to narrow the field, not as an overall image-quality score.