Panasonic FZ28 has a
10.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor . On the other hand, Panasonic FZ40 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine HD II processor.
Below you can see the FZ28 and FZ40 sensor size comparison.
Sensor Size and Resolution Comparison image of Panasonic FZ28 and Panasonic FZ40 Cameras
Panasonic FZ28 and Panasonic FZ40 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 FZ28 has 40% larger pixel area compared to Panasonic FZ40, 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 FZ28
or the
Panasonic FZ40 ,
including hyperfocal distance.
