The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon 10-18mm f4.5-5.6 IS STM and the Tokina atx-i Pro 11-16mm F2.8 CF 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. Tokina atx-i Pro 11-16mm F2.8 CF is the longer of the two lenses at 89mm. The Canon 10-18mm f4.5-5.6 IS STM with a length of 72mm, is 17mm shorter. Besides being longer, the Tokina atx-i Pro 11-16mm F2.8 CF also has a larger diameter of 84mm compared to the Canon 10-18mm f4.5-5.6 IS STM's 75mm 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, which means it is 315g (56%) lighter than the Tokina atx-i Pro 11-16mm F2.8 CF which has a weight of 555g.
Below you can find the dimension and weight table of the Wideangle Zoom Lenses in Canon EF-S Mount for size comparison purposes.
Ultra-Wideangle Lenses in Canon EF-S Mount for Size Comparison
Filter Threads
The Canon 10-18mm f4.5-5.6 IS STM has a filter size of 67mm whereas the Tokina atx-i Pro 11-16mm F2.8 CF has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Canon 10-18mm f4.5-5.6 IS STM:
And these are the 77mm filters that we recommend for the Tokina atx-i Pro 11-16mm F2.8 CF:
Lens Mounts
Both the Canon 10-18mm f4.5-5.6 IS STM and the Tokina atx-i Pro 11-16mm F2.8 CF has the same Canon EF-S lens mount. Some of the latest released cameras that are compatible with the Canon EF-S lenses are Canon T8i, Canon 90D and Canon SL3.
Tokina atx-i Pro 11-16mm F2.8 CF is also available in Canon EF-S mount.
Focal Range
Canon 10-18mm f4.5-5.6 IS STM has a focal range of 10-18mm and
1.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
16-28.8mm when used on a APS-C / DX format camera.
On the other hand, the Tokina atx-i Pro 11-16mm F2.8 CF has a focal range of 11-16mm and 1.5X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 17.6-25.6mm when used on a APS-C / DX format camera.