Olympus 7030 has a
14.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features TruePic III processor. On the other hand, Panasonic ZS50 has a
12.0MP (1/2. ) sized CMOS sensor .
Below you can see the 7030 and ZS50 sensor size comparison.
As seen above, Olympus 7030 has a infx Larger sensor area than Panasonic ZS50. Larger sensors give photographer more control on the depth of field and blurry background compared to smaller sensor when shot in same focal length and aperture.