The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Venus 15mm f4.5 and the 7artisans 12mm 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. 7artisans 12mm F2.8 is the longer of the two lenses at 66mm. The Venus 15mm f4.5 with a length of 48mm, is 18mm shorter. On the other hand, the Venus 15mm f4.5 has a larger diameter of 70mm compared to the 7artisans 12mm F2.8's 63mm 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. 7artisans 12mm F2.8 weighs 295g, 4% (13g) lighter than the Venus 15mm f4.5's weight of 308g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Sony E Mount for size comparison purposes.
Ultra-Wideangle Lenses in Sony E Mount for Size Comparison
Filter Threads
The Venus 15mm f4.5 has a filter size of 62mm whereas the 7artisans 12mm F2.8 has a 46mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 62mm filters that we recommend you to consider for the Venus 15mm f4.5:
And these are the 46mm filters that we recommend for the 7artisans 12mm F2.8:
Lens Mounts
Both the Venus 15mm f4.5 and the 7artisans 12mm F2.8 has the same Sony E lens mount. Some of the latest released cameras that are compatible with the Sony E lenses are Sony FX5, Sony A7R VI and Sony A7 V.
Venus 15mm f4.5 is also available in the Nikon Z , Canon RF and Leica L mounts.
7artisans 12mm F2.8 is also available in Canon EF-M and Fujifilm X mounts.
Focal Range
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.
On the other hand, the 7artisans 12mm F2.8 is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of 18mm when used on a APS-C / DX format camera.
