Sony W620 has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features BIONZ processor. On the other hand, Sony WX150 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 W620 and WX150 sensor size comparison.
Sensor Size and Resolution Comparison image of Sony W620 and Sony WX150 Cameras
Sony W620 and Sony WX150 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 W620 has 28% larger pixel area compared to Sony WX150, 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 W620
or the
Sony WX150 ,
including hyperfocal distance.
