The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 70-200mm f2.8 Sports and the Sigma 105mm F1.4 DG HSM A 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 70-200mm f2.8 Sports is the longer of the two lenses at 205mm. The Sigma 105mm F1.4 DG HSM A with a length of 132mm, is 73mm shorter. On the other hand, the Sigma 105mm F1.4 DG HSM A has a larger diameter of 116mm compared to the Sigma 70-200mm f2.8 Sports's 91mm 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 70-200mm f2.8 Sports weighs 1345g, which means it is 300g (18%) lighter than the Sigma 105mm F1.4 DG HSM A which has a weight of 1645g.
Filter Threads
The Sigma 70-200mm f2.8 Sports has a filter size of 77mm whereas the Sigma 105mm F1.4 DG HSM A has a 105mm 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 Sigma 70-200mm f2.8 Sports:
And these are the 105mm filters that we recommend for the Sigma 105mm F1.4 DG HSM A:
Lens Mounts
Both the Sigma 70-200mm f2.8 Sports and the Sigma 105mm F1.4 DG HSM A 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.
Sigma 70-200mm f2.8 Sports is also available in the Sony E mount.
Focal Range
Sigma 70-200mm f2.8 Sports has a focal range of 70-200mm and
2.9X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
105 - 300mm.
On the other hand, the Sigma 105mm F1.4 DG HSM A is a prime lens with fixed focal lenght of 105mm.
