Reasons to choose Photosmart M307
Released in 2004, Photosmart M307 has about 21 mm² of sensor area, 3.2 MP effective resolution, and a 140 g body. Use these values to narrow the field, not as an overall image-quality score.


The Photosmart R507 has the larger sensor area. More area usually means greater light-gathering potential, though real image quality still depends on sensor architecture and generation.
Amber marks the value that is generally preferable in this comparison context. It is not an overall camera score.
The Photosmart R507 has the larger sensor area. The Photosmart R507 has the lighter body. The Photosmart R507 has the higher effective resolution. The Photosmart M307 and Photosmart R507 were both released in 2004. Also consider the lens system and subjects you shoot.
Released in 2004, Photosmart M307 has about 21 mm² of sensor area, 3.2 MP effective resolution, and a 140 g body. Use these values to narrow the field, not as an overall image-quality score.
Released in 2004, Photosmart R507 has about 25 mm² of sensor area, 4.2 MP effective resolution, and a 132 g body. Use these values to narrow the field, not as an overall image-quality score.