Canon SX30 IS has a
14.0MP 1/2.3-inch (6.17 x 4.55 mm ) sized CCD sensor and features Digic 4 processor. On the other hand, Nikon P610 has a
16.0MP (1/2. ) sized BSI-CMOS sensor .
Below you can see the SX30 IS and P610 sensor size comparison.
As seen above, Canon SX30 IS has a infx Larger sensor area than Nikon P610. 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.