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 Sony FE 16-35mm F4 ZA OSS 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. Sony FE 16-35mm F4 ZA OSS is the longer of the two lenses at 99mm. The AstrHori 6mm f2.8 with a length of 61mm, is 38mm shorter. Besides being longer, the Sony FE 16-35mm F4 ZA OSS also has a larger diameter of 78mm 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. AstrHori 6mm f2.8 weighs 340g, which means it is 178g (34%) lighter than the Sony FE 16-35mm F4 ZA OSS which has a weight of 518g.
Lens Mounts
Both the AstrHori 6mm f2.8 and the Sony FE 16-35mm F4 ZA OSS 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.
AstrHori 6mm f2.8 is also available in the Nikon Z , Canon RF 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 1.5x crop, it provides a 35mm (FF) equivalent of
9mm.
On the other hand, the Sony FE 16-35mm F4 ZA OSS has a focal range of 16-35mm and 2.2X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 24 - 52.5mm.