The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Olympus ED 8mm F1.8 Fisheye and the Olympus ED 8mm f3.5 Fisheye 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 8mm F1.8 Fisheye is the longer of the two lenses at 80mm. The Olympus ED 8mm f3.5 Fisheye with a length of 77mm, is 3mm shorter. On the other hand, the Olympus ED 8mm f3.5 Fisheye has a larger diameter of 79mm compared to the Olympus ED 8mm F1.8 Fisheye's 62mm 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. Olympus ED 8mm F1.8 Fisheye weighs 314g, which means it is 171g (35%) lighter than the Olympus ED 8mm f3.5 Fisheye which has a weight of 485g.
Lens Mounts
The Olympus ED 8mm F1.8 Fisheye has the Micro Four Thirds lens mount whereas the Olympus ED 8mm f3.5 Fisheye has the Four Thirds 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 Olympus E-5, Olympus E-600 and Olympus E-620 for the Four Thirds Mount.
Focal Range
Both lenses have the same focal range of
8mm but while Olympus ED 8mm F1.8 Fisheye has the fastest aperture of
F1.8, the Olympus ED 8mm f3.5 Fisheye's widest aperture value is
F3.5.
