Panasonic FH27 has a
16.0MP 1/2.3-inch (6.08 x 4.56 mm ) sized CCD sensor and features Venus Engine VI processor. On the other hand, Panasonic LF1 has a
12.0MP 1/1.7-inch (7.44 x 5.58 mm ) sized CMOS sensor .
Below you can see the FH27 and LF1 sensor size comparison.
As seen above, Panasonic LF1 has a 1.5x Larger sensor area than Panasonic FH27. 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.