The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 14-24mm F2.8 and the Venus 15mm f4.5 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. Samyang 14-24mm F2.8 is the longer of the two lenses at 89mm. The Venus 15mm f4.5 with a length of 48mm, is 41mm shorter. Besides being longer, the Samyang 14-24mm F2.8 also has a larger diameter of 84mm compared to the Venus 15mm f4.5's 70mm 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 15mm f4.5 weighs 308g, 30% (137g) lighter than the Samyang 14-24mm F2.8's weight of 445g.
Filter Threads
The Samyang 14-24mm F2.8 has a filter size of 77mm whereas the Venus 15mm f4.5 has a 62mm 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 Samyang 14-24mm F2.8:
And these are the 62mm filters that we recommend for the Venus 15mm f4.5:
Lens Mounts
Both the Samyang 14-24mm F2.8 and the Venus 15mm f4.5 has the same Leica L lens mount. Some of the latest released cameras that are compatible with the Leica L lenses are Leica SL3-P, Panasonic S1 II and Panasonic S1 IIE.
Samyang 14-24mm F2.8 is also available in the Sony E mount.
Venus 15mm f4.5 is also available in Sony E , Nikon Z and Canon RF mounts.
Focal Range
Samyang 14-24mm F2.8 has a focal range of 14-24mm and
1.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
21 - 36mm.
On the other hand, the Venus 15mm f4.5 is a prime lens with fixed focal lenght of 15mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 22.5mm.