The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 24-70mm F2.8 II and the Sigma 85mm F1.4 DG DN 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 24-70mm F2.8 II is the longer of the two lenses at 120mm. The Sigma 85mm F1.4 DG DN A with a length of 94mm, is 26mm shorter. Besides being longer, the Sigma 24-70mm F2.8 II also has a larger diameter of 88mm compared to the Sigma 85mm F1.4 DG DN A's 83mm diameter.
Below you can find a scaled side-by-side image of Sigma 24-70mm F2.8 II and Sigma 85mm F1.4 DG DN A to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 24-70mm F2.8 II and the Sigma 85mm F1.4 DG DN A 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. Sigma 85mm F1.4 DG DN A weighs 630g, 15% (115g) lighter than the Sigma 24-70mm F2.8 II's weight of 745g.
Filter Threads
The Sigma 24-70mm F2.8 II has a filter size of 82mm whereas the Sigma 85mm F1.4 DG DN A has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 82mm filters that we recommend you to consider for the Sigma 24-70mm F2.8 II:
And these are the 77mm filters that we recommend for the Sigma 85mm F1.4 DG DN A:
Lens Mounts
Both the Sigma 24-70mm F2.8 II and the Sigma 85mm F1.4 DG DN 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 24-70mm F2.8 II is also available in the Sony E mount.
Focal Range
Sigma 24-70mm F2.8 II has a focal range of 24-70mm 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
36 - 105mm .
On the other hand, the Sigma 85mm F1.4 DG DN A is a prime lens with fixed focal lenght of 85mm.