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 RF-S 18-45mm f4.5-6.3 IS 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. Sigma 10-18mm F2.8 DC DN C is the longer of the two lenses at 64mm. The Canon RF-S 18-45mm f4.5-6.3 IS with a length of 44mm, is 20mm shorter. Besides being longer, the Sigma 10-18mm F2.8 DC DN C also has a larger diameter of 72mm compared to the Canon RF-S 18-45mm f4.5-6.3 IS's 69mm diameter.
Below you can find a scaled side-by-side image of Sigma 10-18mm F2.8 DC DN C and Canon RF-S 18-45mm f4.5-6.3 IS to get a better idea of how their sizes compare in real life.
Comparison image of the Sigma 10-18mm F2.8 DC DN C and the Canon RF-S 18-45mm f4.5-6.3 IS Size and Weight 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 18-45mm f4.5-6.3 IS weighs 130g, 49% (125g) lighter than the Sigma 10-18mm F2.8 DC DN C's weight of 255g.
Filter Threads
The Sigma 10-18mm F2.8 DC DN C has a filter size of 67mm whereas the Canon RF-S 18-45mm f4.5-6.3 IS has a 49mm 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 Sigma 10-18mm F2.8 DC DN C:
And these are the 49mm filters that we recommend for the Canon RF-S 18-45mm f4.5-6.3 IS:
Lens Mounts
Both the Sigma 10-18mm F2.8 DC DN C and the Canon RF-S 18-45mm f4.5-6.3 IS has the same Canon RF lens mount . Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R50 V , Canon R100 and Canon R50 .
Sony E , Leica L and Fujifilm X mounts.
Focal Range
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
16-28.8mm when used on a APS-C / DX format camera.
On the other hand, the Canon RF-S 18-45mm f4.5-6.3 IS has a focal range of 18-45mm and 2.5X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 28.8-72mm when used on a APS-C / DX format camera.
