The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 50-100mm F1.8 A and the Nikon 70-200mm f2.8G ED VR II 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. Nikon 70-200mm f2.8G ED VR II is the longer of the two lenses at 209mm. The Sigma 50-100mm F1.8 A with a length of 171mm, is 38mm shorter. On the other hand, the Sigma 50-100mm F1.8 A has a larger diameter of 94mm compared to the Nikon 70-200mm f2.8G ED VR II's 87mm diameter.
Below you can find a scaled side-by-side image of Sigma 50-100mm F1.8 A and Nikon 70-200mm f2.8G ED VR II to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 50-100mm F1.8 A and the Nikon 70-200mm f2.8G ED VR II 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 50-100mm F1.8 A weighs 1490g, which means it is 50g (3%) lighter than the Nikon 70-200mm f2.8G ED VR II which has a weight of 1540g.
Filter Threads
The Sigma 50-100mm F1.8 A has a filter size of 82mm whereas the Nikon 70-200mm f2.8G ED VR II 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 50-100mm F1.8 A:
And these are the 77mm filters that we recommend for the Nikon 70-200mm f2.8G ED VR II:
Lens Mounts
The Sigma 50-100mm F1.8 A has the Nikon F (DX) lens mount whereas the Nikon 70-200mm f2.8G ED VR II has the Nikon F (FX) lens mount . Some of the latest released cameras that are compatible with these mounts are Nikon D3500 , Nikon D7500 and Nikon D5600 for the Nikon F (DX) Mount and Nikon D6 , Nikon D780 and Nikon D3500 for the Nikon F (FX) Mount.
Sigma 50-100mm F1.8 A is also available in the Canon EF and Sigma SA mounts.
Focal Range
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.
On the other hand, the Nikon 70-200mm f2.8G ED VR II 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 .