Panasonic G1 has a
12.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor . On the other hand, Panasonic G7 has a
16.0MP Four Thirds (17.3 x 13 mm ) sized CMOS sensor .
Below you can see the G1 and G7 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic G1 and Panasonic G7 Cameras
Panasonic G1 and Panasonic G7 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 Panasonic G1 has 31% larger pixel area compared to Panasonic G7, it has potential to collect more light on pixel level hence 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
Panasonic G1
or the
Panasonic G7 ,
including hyperfocal distance.
