The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF-S 10-18mm F4.5-6.3 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 Canon RF-S 10-18mm F4.5-6.3 with a length of 45mm, is 27mm shorter. Besides being longer, the Canon 10-18mm f4.5-5.6 IS STM also has a larger diameter of 75mm compared to the Canon RF-S 10-18mm F4.5-6.3's 69mm 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 RF-S 10-18mm F4.5-6.3 weighs 150g, which means it is 90g (37%) lighter than the Canon 10-18mm f4.5-5.6 IS STM which has a weight of 240g.
Filter Threads
The Canon RF-S 10-18mm F4.5-6.3 has a filter size of 49mm whereas the Canon 10-18mm f4.5-5.6 IS STM 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 49mm filters that we recommend you to consider for the Canon RF-S 10-18mm F4.5-6.3:
And these are the 67mm filters that we recommend for the Canon 10-18mm f4.5-5.6 IS STM:
Lens Mounts
The Canon RF-S 10-18mm F4.5-6.3 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.
Focal Range
Both lenses have the same focal range of
10-18mm but while Canon RF-S 10-18mm F4.5-6.3 has the fastest aperture of
F4.5–6.3, the Canon 10-18mm f4.5-5.6 IS STM's widest aperture value is
F4.5 - F5.6.
