The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Venus 7.5mm F2 MFT and the Kamlan 8mm F3.0 Fisheye for their suitability to various photography scenarios:
Size and Weight Comparison
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 7.5mm F2 MFT weighs 170g, which means it is 75g (30%) lighter than the Kamlan 8mm F3.0 Fisheye which has a weight of 245g.
Lens Mounts
The Venus 7.5mm F2 MFT has the Micro Four Thirds lens mount whereas the Kamlan 8mm F3.0 Fisheye has the Canon EF-M lens mount. Some of the latest released cameras that are compatible with these mounts are OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount and , and for the Canon EF-M Mount.
Kamlan 8mm F3.0 Fisheye is also available in Sony E mount.
Focal Range
Venus 7.5mm F2 MFT is a prime lens with fixed focal lenght of 7.5mm which has an effective (full-frame 35mm equivalent) focal range of
16mm when used on a FourThirds format camera.
On the other hand, the Kamlan 8mm F3.0 Fisheye is a prime lens with fixed focal lenght of 8mm which has an effective (full-frame 35mm equivalent) focal range of 12mm when used on a APS-C / DX format camera.
