The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Nikon 17-35mm f2.8D ED-IF and the Sigma 10-20mm F3.5 EX DC HSM 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 17-35mm f2.8D ED-IF is the longer of the two lenses at 106mm. The Sigma 10-20mm F3.5 EX DC HSM with a length of 88mm, is 18mm shorter. On the other hand, the Sigma 10-20mm F3.5 EX DC HSM has a larger diameter of 87mm compared to the Nikon 17-35mm f2.8D ED-IF's 83mm 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 10-20mm F3.5 EX DC HSM weighs 520g, 30% (225g) lighter than the Nikon 17-35mm f2.8D ED-IF's weight of 745g.
Filter Threads
The Nikon 17-35mm f2.8D ED-IF has a filter size of 77mm whereas the Sigma 10-20mm F3.5 EX DC HSM 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 77mm filters that we recommend you to consider for the Nikon 17-35mm f2.8D ED-IF:
And these are the 82mm filters that we recommend for the Sigma 10-20mm F3.5 EX DC HSM:
Lens Mounts
The Nikon 17-35mm f2.8D ED-IF has the Nikon F (FX) lens mount whereas the Sigma 10-20mm F3.5 EX DC HSM has the Canon EF 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 Canon T8i, Canon 90D and Canon SL3 for the Canon EF Mount.
Sigma 10-20mm F3.5 EX DC HSM is also available in Pentax KAF3 , Sony Alpha, Sigma SA and Nikon F (DX) mounts.
Focal Range
Nikon 17-35mm f2.8D ED-IF has a focal range of 17-35mm and
2.1X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
25.5 - 52.5mm.
On the other hand, the Sigma 10-20mm F3.5 EX DC HSM has a focal range of 10-20mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 16-32mm when used on a APS-C / DX format camera.