The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Panasonic 9mm F1.7 ASPH and the Olympus ED 8mm F1.8 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 Panasonic 9mm F1.7 ASPH with a length of 52mm, is 28mm shorter. Besides being longer, the Olympus ED 8mm F1.8 Fisheye also has a larger diameter of 62mm compared to the Panasonic 9mm F1.7 ASPH's 61mm diameter.
Below you can find a scaled side-by-side image of Panasonic 9mm F1.7 ASPH and Olympus ED 8mm F1.8 Fisheye to get a better idea of how their sizes compare in real life.
Comparison image of the Panasonic 9mm F1.7 ASPH and the Olympus ED 8mm F1.8 Fisheye Size and Weight 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. Panasonic 9mm F1.7 ASPH weighs 130g, which means it is 184g (58%) lighter than the Olympus ED 8mm F1.8 Fisheye which has a weight of 314g.
Lens Mounts
Both the Panasonic 9mm F1.7 ASPH and the Olympus ED 8mm F1.8 Fisheye has the same Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 .
Focal Range
Panasonic 9mm F1.7 ASPH is a prime lens with fixed focal lenght of 9mm which has an effective (full-frame 35mm equivalent) focal range of
18mm when used on a FourThirds format camera.
On the other hand, the Olympus ED 8mm F1.8 Fisheye is a prime lens with fixed focal lenght of 8mm which has an effective (full-frame 35mm equivalent) focal range of 16mm when used on a FourThirds format camera.
