The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF-S 3.9mm F3.5 and the Sony FE 24-105mm F4 G OSS 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. Sony FE 24-105mm F4 G OSS is the longer of the two lenses at 113mm. The Canon RF-S 3.9mm F3.5 with a length of 55mm, is 58mm shorter. On the other hand, the Canon RF-S 3.9mm F3.5 has a larger diameter of 112mm compared to the Sony FE 24-105mm F4 G OSS's 83mm 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 3.9mm F3.5 weighs 290g, which means it is 373g (56%) lighter than the Sony FE 24-105mm F4 G OSS which has a weight of 663g.
Filter Threads
The Canon RF-S 3.9mm F3.5 has a filter size of 31mm whereas the Sony FE 24-105mm F4 G OSS 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 31mm filters that we recommend you to consider for the Canon RF-S 3.9mm F3.5:
And these are the 77mm filters that we recommend for the Sony FE 24-105mm F4 G OSS:
Lens Mounts
The Canon RF-S 3.9mm F3.5 has the Canon RF lens mount whereas the Sony FE 24-105mm F4 G OSS has the Sony E 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 Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount.
Focal Range
Canon RF-S 3.9mm F3.5 is a prime lens with fixed focal lenght of 3.9mm which has an effective (full-frame 35mm equivalent) focal range of
6.4mm when used on a APS-C / DX format camera.
On the other hand, the Sony FE 24-105mm F4 G OSS has a focal range of 24-105mm and 4.4X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 36 - 157.5mm.
