The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samsung 10mm F3.5 Fisheye and the Samyang 12mm f2.0 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. Samyang 12mm f2.0 is the longer of the two lenses at 59mm. The Samsung 10mm F3.5 Fisheye with a length of 26mm, is 33mm shorter. Besides being longer, the Samyang 12mm f2.0 also has a larger diameter of 73mm compared to the Samsung 10mm F3.5 Fisheye's 59mm 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. Samsung 10mm F3.5 Fisheye weighs 71g, which means it is 189g (72%) lighter than the Samyang 12mm f2.0 which has a weight of 260g.
Below you can find the dimension and weight table of the Wideangle Fisheye Prime Lenses in Samsung NX Mount for size comparison purposes.
Ultra-Wideangle Lenses in Samsung NX Mount for Size Comparison
Lens Mounts
Both the Samsung 10mm F3.5 Fisheye and the Samyang 12mm f2.0 has the same Samsung NX lens mount. Some of the latest released cameras that are compatible with the Samsung NX lenses are Samsung NX1, Samsung NX3000 and Samsung NX30.
Samyang 12mm f2.0 is also available in Canon EF-M , Fujifilm X, Micro Four Thirds and Sony E mounts.
Focal Range
Samsung 10mm F3.5 Fisheye is a prime lens with fixed focal lenght of 10mm which has an effective (full-frame 35mm equivalent) focal range of
15mm when used on a APS-C / DX format camera.
On the other hand, the Samyang 12mm f2.0 is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of 18mm when used on a APS-C / DX format camera.