Reasons to choose EOS 30D
Released in 2006, EOS 30D has about 338 mm² of sensor area, 8.19 MP effective resolution, and a 784 g body. Use these values to narrow the field, not as an overall image-quality score.
Side-by-side comparison
Canon EOS 30D
vs Nikon D70
VS
Sensor area
338 mm²
EOS 30D370 mm²
D70- Area ratio
- 1.1:1
- Absolute difference
- 32 mm²
- Relative difference
- 9.5%
The D70 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
EOS 30DMetricD70
8.19 MPEffective pixels6.1 MP
22.5 × 15Sensor23.7 × 15.6
6.42 µmPixel pitch7.79 µm
41.21 µm²Pixel area60.61 µm²
2.43 MP/cm²Pixel density1.65 MP/cm²
1.6Crop factor1.53
—Maximum video—
784 gWeight679 g
CompactFlash type I, CompactFlash type II, MicrodriveStorageCompactFlash type I, CompactFlash type II
AA (4) batteries (NiMH recommended)BatteryNikon EN-EL3 Lithium-Ion included 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 D70 has the larger sensor area. The D70 has the lighter body. The EOS 30D has the higher effective resolution. The EOS 30D is the newer release. Also consider the lens system and subjects you shoot.
Reasons to choose D70
Released in 2004, D70 has about 370 mm² of sensor area, 6.1 MP effective resolution, and a 679 g body. Use these values to narrow the field, not as an overall image-quality score.