The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 85mm F1.4 DG HSM and the Sigma 50-100mm F1.8 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 50-100mm F1.8 A is the longer of the two lenses at 171mm. The Sigma 85mm F1.4 DG HSM with a length of 126mm, is 45mm shorter. On the other hand, the Sigma 85mm F1.4 DG HSM has a larger diameter of 95mm compared to the Sigma 50-100mm F1.8 A's 94mm diameter.
Below you can find a scaled side-by-side image of Sigma 85mm F1.4 DG HSM and Sigma 50-100mm F1.8 A to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 85mm F1.4 DG HSM and the Sigma 50-100mm F1.8 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 HSM weighs 1130g, which means it is 360g (24%) lighter than the Sigma 50-100mm F1.8 A which has a weight of 1490g.
Filter Threads
The Sigma 85mm F1.4 DG HSM has a filter size of 86mm whereas the Sigma 50-100mm F1.8 A has a 82mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 86mm filters that we recommend you to consider for the Sigma 85mm F1.4 DG HSM:
And these are the 82mm filters that we recommend for the Sigma 50-100mm F1.8 A:
Lens Mounts
The Sigma 85mm F1.4 DG HSM has the Nikon F (FX) lens mount whereas the Sigma 50-100mm F1.8 A has the Nikon F (DX) lens mount . Some of the latest released cameras that are compatible with these mounts are Nikon D6 , Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount and Nikon D3500 , Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount.
Sigma SA and Canon EF mounts.
Canon EF and Sigma SA mounts.
Focal Range
Sigma 85mm F1.4 DG HSM is a prime lens with fixed focal lenght of 85mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
127.5mm .
On the other hand, the Sigma 50-100mm F1.8 A has a focal range of 50-100mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 75-150mm when used on a APS-C / DX format camera.
