Size and weight is a big decision factor when you are trying to find the ideal camera for your needs.
In this section, We are going to illustrate Canon SX30 IS and Panasonic LZ30 side-by-side from the front, back and top in their relative dimensions. Canon SX30 IS has external dimensions of 123 x 92 x 108 mm (4.84 x 3.62 x 4.25″) and weighs 601 g (1.32 lb / 21.20 oz) (including batteries). Panasonic LZ30 has external dimensions of 124 x 84 x 92 mm (4.88 x 3.31 x 3.62″) and weighs 552 g (1.22 lb / 19.47 oz) (including batteries).
Below you can see the front view size comparison of Canon SX30 IS and Panasonic LZ30. Panasonic LZ30 is 8mm shorter and 16mm thinner than Canon SX30 IS but it is also 1mm wider.
Weight is another important factor especially when deciding on a camera that you want to carry with you all day.
Panasonic LZ30 is 49g lighter than the Canon SX30 IS but we don't think this will make a significant difference.
Unfortunately neither Canon PowerShot SX30 IS nor Panasonic Lumix DMC-LZ30 provides any type of weather sealing in their body, so you have to give extra care especially when you are shooting outdoors. If weather sealing is a must-have feature for you, check these sections: Top Bridge Cameras with Weather Sealing
LCD Screen Size and Features
Panasonic LZ30's 3" LCD screen is slightly larger than Canon SX30 IS's 2.7" screen.
On the other hand, Canon SX30 IS sports a Fully Articulated screen
which you can change the angle and position of the screen almost freely, making it possible to shoot from waist or over the head levels, and especially very useful for shooting selfies and video. On the other hand, Panasonic LZ30 has a fixed type screen which provides almost no flexibility in shooting positions compared to SX30 IS.