The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 14mm F2.8 and the Samyang 8mm F2.8 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. Samyang 8mm F2.8 Fisheye weighs 265g, 51% (287g) lighter than the Samyang 14mm F2.8's weight of 552g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Samsung NX Mount for size comparison purposes.
Ultra-Wideangle Lenses in Samsung NX Mount for Size Comparison
Lens Mounts
Both the Samyang 14mm F2.8 and the Samyang 8mm F2.8 Fisheye has the same Samsung NX lens mount. Some of the latest released cameras that are compatible with the Samsung NX lenses are Samsung NX500, Samsung NX1 and Samsung NX3000.
Samyang 14mm F2.8 is also available in the Canon EF , Nikon F (FX), Four Thirds, Pentax KAF, Sony Alpha and Sony E mounts.
Samyang 8mm F2.8 Fisheye is also available in Sony E mount.
Focal Range
Samyang 14mm F2.8 is a prime lens with fixed focal lenght of 14mm.
On the other hand, the Samyang 8mm F2.8 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.
