The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon RF 15-30mm F4.5-6.3 IS and the Venus Argus 35mm F0.95 FF 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. Venus Argus 35mm F0.95 FF is the longer of the two lenses at 103mm. The Canon RF 15-30mm F4.5-6.3 IS with a length of 88mm, is 15mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 77mm.
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 15-30mm F4.5-6.3 IS weighs 390g, which means it is 365g (48%) lighter than the Venus Argus 35mm F0.95 FF which has a weight of 755g.
Filter Threads
The Canon RF 15-30mm F4.5-6.3 IS has a filter size of 67mm whereas the Venus Argus 35mm F0.95 FF has a 72mm 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 RF 15-30mm F4.5-6.3 IS:
And these are the 72mm filters that we recommend for the Venus Argus 35mm F0.95 FF:
Lens Mounts
Both the Canon RF 15-30mm F4.5-6.3 IS and the Venus Argus 35mm F0.95 FF has the same Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R6 V, Canon R6 III and Canon C50.
Venus Argus 35mm F0.95 FF is also available in Nikon Z and Sony E mounts.
Focal Range
Canon RF 15-30mm F4.5-6.3 IS has a focal range of 15-30mm and
2.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
24 - 48mm.
On the other hand, the Venus Argus 35mm F0.95 FF is a prime lens with fixed focal lenght of 35mm.