The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 24-105mm F4L IS and the Panasonic 8-18mm F2.8-4.0 ASPH 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 RF 24-105mm F4L IS is the longer of the two lenses at 107mm. The Panasonic 8-18mm F2.8-4.0 ASPH with a length of 88mm, is 19mm shorter. Besides being longer, the Canon RF 24-105mm F4L IS also has a larger diameter of 84mm compared to the Panasonic 8-18mm F2.8-4.0 ASPH's 73mm diameter.
Below you can find a scaled side-by-side image of Canon RF 24-105mm F4L IS and Panasonic 8-18mm F2.8-4.0 ASPH to get a better idea of how their sizes compare in real life.
Comparison image of the Canon RF 24-105mm F4L IS and the Panasonic 8-18mm F2.8-4.0 ASPH 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. Panasonic 8-18mm F2.8-4.0 ASPH weighs 315g, 55% (385g) lighter than the Canon RF 24-105mm F4L IS's weight of 700g.
Filter Threads
The Canon RF 24-105mm F4L IS has a filter size of 77mm whereas the Panasonic 8-18mm F2.8-4.0 ASPH 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 77mm filters that we recommend you to consider for the Canon RF 24-105mm F4L IS:
And these are the 67mm filters that we recommend for the Panasonic 8-18mm F2.8-4.0 ASPH:
Lens Mounts
The Canon RF 24-105mm F4L IS has the Canon RF lens mount whereas the Panasonic 8-18mm F2.8-4.0 ASPH has the Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with these mounts are Canon R6 V , Canon R6 III and Canon C50 for the Canon RF Mount and OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Canon RF 24-105mm F4L IS has a focal range of 24-105mm and
4.4X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
38.4 - 168mm .
On the other hand, the Panasonic 8-18mm F2.8-4.0 ASPH has a focal range of 8-18mm and 2.3X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 16-36mm when used on a FourThirds format camera.