The type of photography that you are planning to use is an important decision factor. Here we have evaluated the 7artisans 10mm f2.8 II E and the Tamron 28-75mm F2.8 Di III 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 28-75mm F2.8 Di III is the longer of the two lenses at 118mm. The 7artisans 10mm f2.8 II E with a length of 95mm, is 23mm shorter. Besides being longer, the Tamron 28-75mm F2.8 Di III also has a larger diameter of 76mm compared to the 7artisans 10mm f2.8 II E's 75mm 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. Tamron 28-75mm F2.8 Di III weighs 540g, 10% (62g) lighter than the 7artisans 10mm f2.8 II E's weight of 602g.
Lens Mounts
The 7artisans 10mm f2.8 II E has the Sony E lens mount whereas the Tamron 28-75mm F2.8 Di III has the Nikon Z lens mount. Some of the latest released cameras that are compatible with these mounts are Sony FX5, Sony A7R VI and Sony A7 V for the Sony E Mount and Nikon ZR, Nikon Z5 II and RED Komodo-X 6K Z for the Nikon Z Mount.
Tamron 28-75mm F2.8 Di III is also available in Sony E and Sony E mounts.
Focal Range
7artisans 10mm f2.8 II E is a prime lens with fixed focal lenght of 10mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
15mm.
On the other hand, the Tamron 28-75mm F2.8 Di III has a focal range of 28-75mm and 2.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 42 - 112.5mm.