Reasons to choose D3
Released in 2007, D3 has about 860 mm² of sensor area, 12.1 MP effective resolution, and a 1,240 g body. Use these values to narrow the field, not as an overall image-quality score.


The D3 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.
Amber marks the value that is generally preferable in this comparison context. It is not an overall camera score.
The D3 has the larger sensor area. The D5000 has the lighter body. The D5000 has the higher effective resolution. The D5000 is the newer release. Also consider the lens system and subjects you shoot.
Released in 2007, D3 has about 860 mm² of sensor area, 12.1 MP effective resolution, and a 1,240 g body. Use these values to narrow the field, not as an overall image-quality score.
Released in 2009, D5000 has about 373 mm² of sensor area, 12.3 MP effective resolution, and a 590 g body. Use these values to narrow the field, not as an overall image-quality score.