The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic S 24-105mm F4 and the Sigma 70-300mm F4-5.6 DG OS for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Sigma 70-300mm F4-5.6 DG OS is the longer of the two lenses at 126mm. The Panasonic S 24-105mm F4 with a length of 118mm, is 8mm shorter. On the other hand, the Panasonic S 24-105mm F4 has a larger diameter of 84mm compared to the Sigma 70-300mm F4-5.6 DG OS's 77mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Sigma 70-300mm F4-5.6 DG OS weighs 610g, 10% (70g) lighter than the Panasonic S 24-105mm F4's weight of 680g.
Filter Threads
The Panasonic S 24-105mm F4 has a filter size of 77mm whereas the Sigma 70-300mm F4-5.6 DG OS has a 58mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 77mm filters that we recommend you to consider for the Panasonic S 24-105mm F4:
And these are the 58mm filters that we recommend for the Sigma 70-300mm F4-5.6 DG OS:
Lens Mounts
The Panasonic S 24-105mm F4 has the Leica L lens mount whereas the Sigma 70-300mm F4-5.6 DG OS has the Pentax KAF3 lens mount. Some of the latest released cameras that are compatible with these mounts are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE for the Leica L Mount and Pentax K-3 III Mono, Pentax KF and Pentax K-3 III for the Pentax KAF3 Mount.
Sigma 70-300mm F4-5.6 DG OS is also available in Canon EF , Nikon F (FX), Sony Alpha and Sigma SA mounts.
Focal Range
Panasonic S 24-105mm F4 has a focal range of 24-105mm and
4.4X zoom ratio .
On the other hand, the Sigma 70-300mm F4-5.6 DG OS has a focal range of 70-300mm and 4.3X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 105 - 450mm.
