Sony H70 has a
16.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features BIONZ processor. On the other hand, Sony H55 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Bionz processor.
Below you can see the H70 and H55 sensor size comparison.
Sensor Size and Resolution Comparison image of Sony H70 and Sony H55 Cameras
Sony H70 and Sony H55 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 Sony H55 has 14% larger pixel area (2.01µm 2 vs 1.76µm 2 ) compared to Sony H70, it has larger pixel area to collect light hence potential to have less noise in low light / High ISO images.
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Sony H70
or the
Sony H55 ,
including hyperfocal distance.
