The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic S 100mm F2.8 Macro and the Sigma 105mm F2.8 EX DG Macro 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 105mm F2.8 EX DG Macro is the longer of the two lenses at 98mm. The Panasonic S 100mm F2.8 Macro with a length of 82mm, is 16mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 74mm.
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 100mm F2.8 Macro weighs 298g, which means it is 162g (35%) lighter than the Sigma 105mm F2.8 EX DG Macro which has a weight of 460g.
Filter Threads
The Panasonic S 100mm F2.8 Macro has a filter size of 67mm whereas the Sigma 105mm F2.8 EX DG Macro has a 62mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Panasonic S 100mm F2.8 Macro:
And these are the 62mm filters that we recommend for the Sigma 105mm F2.8 EX DG Macro:
Lens Mounts
The Panasonic S 100mm F2.8 Macro has the Leica L lens mount whereas the Sigma 105mm F2.8 EX DG Macro has the Sigma SA 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 Sigma Quattro, Sigma Quattro H and Sigma SD1 Merrill for the Sigma SA Mount.
Sigma 105mm F2.8 EX DG Macro is also available in Canon EF , Nikon F (FX), Pentax KAF, Sony Alpha and Four Thirds mounts.
Focal Range
Panasonic S 100mm F2.8 Macro is a prime lens with fixed focal lenght of 100mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
150mm.
On the other hand, the Sigma 105mm F2.8 EX DG Macro is a prime lens with fixed focal lenght of 105mm.