The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Venus 12mm f2.8 AF and the Canon RF 100-300mm f2.8 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 100-300mm f2.8 is the longer of the two lenses at 323mm. The Venus 12mm f2.8 AF with a length of 80mm, is 243mm shorter. Besides being longer, the Canon RF 100-300mm f2.8 also has a larger diameter of 128mm compared to the Venus 12mm f2.8 AF's 77mm 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. Venus 12mm f2.8 AF weighs 390g, which means it is 2200g (84%) lighter than the Canon RF 100-300mm f2.8 which has a weight of 2590g.
Filter Threads
The Venus 12mm f2.8 AF has a filter size of 72mm whereas the Canon RF 100-300mm f2.8 has a 112mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Venus 12mm f2.8 AF:
And these are the 112mm filters that we recommend for the Canon RF 100-300mm f2.8:
Lens Mounts
The Venus 12mm f2.8 AF has the Nikon Z lens mount whereas the Canon RF 100-300mm f2.8 has the Canon RF lens mount. Some of the latest released cameras that are compatible with these mounts are Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount and Canon R6 V, Canon R6 III and Canon C50 for the Canon RF Mount.
Venus 12mm f2.8 AF is also available in the Sony E mount.
Focal Range
Venus 12mm f2.8 AF is a prime lens with fixed focal lenght of 12mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
18mm.
On the other hand, the Canon RF 100-300mm f2.8 has a focal range of 100-300mm and 3.0X zoom ratio . When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of 160 - 480mm.
