The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 8mm F2.8 Fisheye and the Samyang 7.5mm F3.5 Fisheye MFT 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. Samyang 7.5mm F3.5 Fisheye MFT weighs 197g, 25% (68g) lighter than the Samyang 8mm F2.8 Fisheye's weight of 265g.
Lens Mounts
The Samyang 8mm F2.8 Fisheye has the Sony E lens mount whereas the Samyang 7.5mm F3.5 Fisheye MFT has the Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with these mounts are Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount and OM System OM-3 Astro, OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Samyang 8mm F2.8 Fisheye is also available in the Samsung NX mount.
Focal Range
Both lenses have the same focal range of
8mm but while Samyang 8mm F2.8 Fisheye has the fastest aperture of
F2.8, the Samyang 7.5mm F3.5 Fisheye MFT's widest aperture value is
F3.5.
