The type of photography that you are planning to use is an important decision factor. Here we have evaluated the AstrHori 6mm f2.8 and the Tamron 11-20mm F2.8 RF 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 11-20mm F2.8 RF is the longer of the two lenses at 84mm. The AstrHori 6mm f2.8 with a length of 61mm, is 23mm shorter. Besides being longer, the Tamron 11-20mm F2.8 RF also has a larger diameter of 73mm compared to the AstrHori 6mm f2.8's 65mm 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.
Lens Mounts
Both the AstrHori 6mm f2.8 and the Tamron 11-20mm F2.8 RF has the same Canon RF lens mount. Some of the latest released cameras that are compatible with the Canon RF lenses are Canon R6 V, Canon R6 III and Canon C50.
AstrHori 6mm f2.8 is also available in the Sony E , Nikon Z and Leica L mounts.
Focal Range
AstrHori 6mm f2.8 is a prime lens with fixed focal lenght of 6mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
9.6mm.
On the other hand, the Tamron 11-20mm F2.8 RF has a focal range of 11-20mm and 1.8X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 17.6-32mm when used on a APS-C / DX format camera.
