The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic S 70-300 F4.5-5.6 OIS and the Sigma 100-400mm F5-6.3 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 100-400mm F5-6.3 OS is the longer of the two lenses at 197mm. The Panasonic S 70-300 F4.5-5.6 OIS with a length of 148mm, is 49mm shorter. Besides being longer, the Sigma 100-400mm F5-6.3 OS also has a larger diameter of 86mm compared to the Panasonic S 70-300 F4.5-5.6 OIS's 84mm diameter.
Below you can find a scaled side-by-side image of Panasonic S 70-300 F4.5-5.6 OIS and Sigma 100-400mm F5-6.3 OS to get a better idea of how their sizes compare in real life.
Comparison image of the Panasonic S 70-300 F4.5-5.6 OIS and the Sigma 100-400mm F5-6.3 OS Size and Weight 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. Panasonic S 70-300 F4.5-5.6 OIS weighs 790g, which means it is 345g (30%) lighter than the Sigma 100-400mm F5-6.3 OS which has a weight of 1135g.
Filter Threads
The Panasonic S 70-300 F4.5-5.6 OIS has a filter size of 77mm whereas the Sigma 100-400mm F5-6.3 OS has a 67mm 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 70-300 F4.5-5.6 OIS:
And these are the 67mm filters that we recommend for the Sigma 100-400mm F5-6.3 OS:
Lens Mounts
Both the Panasonic S 70-300 F4.5-5.6 OIS and the Sigma 100-400mm F5-6.3 OS has the same Leica L lens mount . Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P , Panasonic S1 II and Panasonic S1 IIE .
Sony E and Fujifilm X mounts.
Focal Range
Panasonic S 70-300 F4.5-5.6 OIS 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 .
On the other hand, the Sigma 100-400mm F5-6.3 OS has a focal range of 100-400mm and 4.0X zoom ratio .
