The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 12-20mm f2.8 and the Venus Laowa 4mm F2.8 Z 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. Tamron 12-20mm f2.8 is the longer of the two lenses at 121mm. The Venus Laowa 4mm F2.8 Z with a length of 26mm, is 95mm shorter. Besides being longer, the Tamron 12-20mm f2.8 also has a larger diameter of 90mm compared to the Venus Laowa 4mm F2.8 Z's 61mm diameter.
Below you can find a scaled side-by-side image of Tamron 12-20mm f2.8 and Venus Laowa 4mm F2.8 Z to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 12-20mm f2.8 and the Venus Laowa 4mm F2.8 Z Size and Weight 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 Laowa 4mm F2.8 Z weighs 135g, 76% (450g) lighter than the Tamron 12-20mm f2.8's weight of 585g.
Lens Mounts
Both the Tamron 12-20mm f2.8 and the Venus Laowa 4mm F2.8 Z has the same Nikon Z lens mount . Some of the latest released cameras that are compatible with the Nikon Z lenses are Nikon ZR , Nikon Z5 II and RED Komodo-X 6K Z .
Focal Range
Tamron 12-20mm f2.8 has a focal range of 12-20mm 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
18 - 30mm .
On the other hand, the Venus Laowa 4mm F2.8 Z is a prime lens with fixed focal lenght of 4mm which has an effective (full-frame 35mm equivalent) focal range of 6mm when used on a APS-C / DX format camera.
