The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 10-18mm F2.8 DC DN C and the Canon 10-18mm f4.5-5.6 IS STM 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. Canon 10-18mm f4.5-5.6 IS STM is the longer of the two lenses at 72mm. The Sigma 10-18mm F2.8 DC DN C with a length of 64mm, is 8mm shorter. Besides being longer, the Canon 10-18mm f4.5-5.6 IS STM also has a larger diameter of 75mm 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. Canon 10-18mm f4.5-5.6 IS STM weighs 240g, 7% (20g) lighter than the Sigma 10-18mm F2.8 DC DN C's weight of 260g.
Filter Threads
Both the Sigma 10-18mm F2.8 DC DN C and the Canon 10-18mm f4.5-5.6 IS STM have the same Filter thread size of 67mm.
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Sigma 10-18mm F2.8 DC DN C has the Leica L lens mount whereas the Canon 10-18mm f4.5-5.6 IS STM has the Canon EF-S lens mount. Some of the latest released cameras that are compatible with these mounts are Leica TL2, Leica TL and Leica T Typ 701 for the Leica L Mount and Canon T8i, Canon 90D and Canon SL3 for the Canon EF-S Mount.
Sigma 10-18mm F2.8 DC DN C is also available in the Sony E , Fujifilm X and Canon RF mounts.
Focal Range
Both lenses have the same focal range of
10-18mm but while Sigma 10-18mm F2.8 DC DN C has the fastest aperture of
F2.8, the Canon 10-18mm f4.5-5.6 IS STM's widest aperture value is
F4.5 - F5.6.
