Kodak M580 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Kodak Easyshare M5370 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor .
Below you can see the M580 and Easyshare M5370 sensor size comparison.
Kodak M580 and Kodak Easyshare M5370 have the same sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture. On the other hand, since Kodak M580 has 15% larger pixel area compared to Kodak Easyshare M5370, it has potential to collect more light on pixel level hence have less noise in low light / High ISO images.