The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 18-50mm F2.8 DC DN C and the Panasonic S 24-105mm F4 for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Panasonic S 24-105mm F4 is the longer of the two lenses at 118mm. The Sigma 18-50mm F2.8 DC DN C with a length of 75mm, is 43mm shorter. Besides being longer, the Panasonic S 24-105mm F4 also has a larger diameter of 84mm compared to the Sigma 18-50mm F2.8 DC DN C's 65mm diameter.
Below you can find a scaled side-by-side image of Sigma 18-50mm F2.8 DC DN C and Panasonic S 24-105mm F4 to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 18-50mm F2.8 DC DN C and the Panasonic S 24-105mm F4 Size and Weight The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Sigma 18-50mm F2.8 DC DN C weighs 290g, which means it is 390g (57%) lighter than the Panasonic S 24-105mm F4 which has a weight of 680g.
Below you can find the dimension and weight table of the Standard Zoom Lenses in Leica L Mount for size comparison purposes.
Standard Zoom Lenses in Leica L Mount for Size Comparison
Lens Mounts
Both the Sigma 18-50mm F2.8 DC DN C and the Panasonic S 24-105mm F4 has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Leica TL2, Leica TL and Leica T Typ 701.
Sigma 18-50mm F2.8 DC DN C is also available in Sony E and Fujifilm X mounts.
Focal Range
Sigma 18-50mm F2.8 DC DN C has a focal range of 18-50mm and 2.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 27-75mm when used on a APS-C / DX format camera. Panasonic S 24-105mm F4 has a focal range of 24-105mm and 4.4X zoom ratio .