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, 5% (15g) lighter than the Sigma 10-18mm F2.8 DC DN C's weight of 255g.
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 Canon RF 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 Canon R50 V, Canon R100 and Canon R50 for the Canon RF 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 , Leica L and Fujifilm X 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.
