The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 120-300mm F2.8 EX DG HSM and the Nikon 300mm 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. Sigma 120-300mm F2.8 EX DG HSM is the longer of the two lenses at 271mm. The Nikon 300mm f2.8G ED VR II with a length of 268mm, is 3mm shorter. On the other hand, the Nikon 300mm f2.8G ED VR II has a larger diameter of 124mm compared to the Sigma 120-300mm F2.8 EX DG HSM's 113mm 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 120-300mm F2.8 EX DG HSM weighs 2600g, which means it is 300g (10%) lighter than the Nikon 300mm f2.8G ED VR II which has a weight of 2900g.
Filter Threads
The Sigma 120-300mm F2.8 EX DG HSM has a filter size of 105mm whereas the Nikon 300mm f2.8G ED VR II has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 105mm filters that we recommend you to consider for the Sigma 120-300mm F2.8 EX DG HSM:
And these are the 52mm filters that we recommend for the Nikon 300mm f2.8G ED VR II:
Lens Mounts
Both the Sigma 120-300mm F2.8 EX DG HSM and the Nikon 300mm f2.8G ED VR II has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Sigma 120-300mm F2.8 EX DG HSM is also available in the Canon EF and Sigma SA mounts.
Focal Range
Sigma 120-300mm F2.8 EX DG HSM has a focal range of 120-300mm and
2.5X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
180 - 450mm.
On the other hand, the Nikon 300mm f2.8G ED VR II is a prime lens with fixed focal lenght of 300mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 450mm.
