Reasons to choose EOS 70D
Released in 2013, EOS 70D has about 338 mm² of sensor area, 20.2 MP effective resolution, and a 755 g body. Use these values to narrow the field, not as an overall image-quality score.


The Alpha NEX-5N 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 Alpha NEX-5N has the larger sensor area. The Alpha NEX-5N has the lighter body. The EOS 70D has the higher effective resolution. The EOS 70D is the newer release. Also consider the lens system and subjects you shoot.
Released in 2013, EOS 70D has about 338 mm² of sensor area, 20.2 MP effective resolution, and a 755 g body. Use these values to narrow the field, not as an overall image-quality score.
Released in 2011, Alpha NEX-5N has about 365 mm² of sensor area, 16.1 MP effective resolution, and a 269 g body. Use these values to narrow the field, not as an overall image-quality score.