The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 8mm F3.5 Fisheye and the Olympus ED 7-14mm f4.0 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. Olympus ED 7-14mm f4.0 is the longer of the two lenses at 120mm. The Samyang 8mm F3.5 Fisheye with a length of 77mm, is 43mm shorter. Besides being longer, the Olympus ED 7-14mm f4.0 also has a larger diameter of 87mm compared to the Samyang 8mm F3.5 Fisheye's 75mm 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. Samyang 8mm F3.5 Fisheye weighs 443g, which means it is 337g (43%) lighter than the Olympus ED 7-14mm f4.0 which has a weight of 780g.
Lens Mounts
Both the Samyang 8mm F3.5 Fisheye and the Olympus ED 7-14mm f4.0 has the same Four Thirds lens mount. Some of the latest released cameras that are compatible with the Four Thirds lenses are , and .
Samyang 8mm F3.5 Fisheye is also available in the Canon EF , Nikon F (DX), Pentax KAF, Sony Alpha and Samsung NX mounts.
Focal Range
Samyang 8mm F3.5 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.
On the other hand, the Olympus ED 7-14mm f4.0 has a focal range of 7-14mm and 2.0X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of 14-28mm when used on a FourThirds format camera.
