Sony W320 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor . On the other hand, Sony TX66 has a
18.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized BSI-CMOS sensor and features BIONZ processor.
Below you can see the W320 and TX66 sensor size comparison.
Sensor Size and Resolution Comparison image of Sony W320 and Sony TX66 Cameras
Sony W320 and Sony TX66 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 W320 has 28% larger pixel area compared to Sony TX66, 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
Sony W320
or the
Sony TX66 ,
including hyperfocal distance.
