The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 16mm f1.8 L and the Sigma 10-18mm F2.8 DC DN C 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. Viltrox AF 16mm f1.8 L is the longer of the two lenses at 103mm. The Sigma 10-18mm F2.8 DC DN C with a length of 64mm, is 39mm shorter. Besides being longer, the Viltrox AF 16mm f1.8 L also has a larger diameter of 85mm compared to the Sigma 10-18mm F2.8 DC DN C's 72mm 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 10-18mm F2.8 DC DN C weighs 260g, 52% (290g) lighter than the Viltrox AF 16mm f1.8 L's weight of 550g.
Filter Threads
The Viltrox AF 16mm f1.8 L has a filter size of 77mm whereas the Sigma 10-18mm F2.8 DC DN C has a 67mm 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 Viltrox AF 16mm f1.8 L:
And these are the 67mm filters that we recommend for the Sigma 10-18mm F2.8 DC DN C:
Lens Mounts
Both the Viltrox AF 16mm f1.8 L and the Sigma 10-18mm F2.8 DC DN C has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z.
Sigma 10-18mm F2.8 DC DN C is also available in Sony E , Fujifilm X and Canon RF mounts.
Focal Range
Viltrox AF 16mm f1.8 L is a prime lens with fixed focal lenght of 16mm.
On the other hand, the Sigma 10-18mm F2.8 DC DN C has a focal range of 10-18mm and 1.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 15-27mm when used on a APS-C / DX format camera.
