The type of photography that you are planning to use is an important decision factor. Here we have evaluated the OM System 100-400mm F5.0-6.3 II and the Canon 100-400mm f4.5-5.6L IS II USM 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. OM System 100-400mm F5.0-6.3 II is the longer of the two lenses at 206mm. The Canon 100-400mm f4.5-5.6L IS II USM with a length of 193mm, is 13mm shorter. On the other hand, the Canon 100-400mm f4.5-5.6L IS II USM has a larger diameter of 94mm compared to the OM System 100-400mm F5.0-6.3 II's 86mm 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. OM System 100-400mm F5.0-6.3 II weighs 1300g, which means it is 290g (18%) lighter than the Canon 100-400mm f4.5-5.6L IS II USM which has a weight of 1590g.
Filter Threads
The OM System 100-400mm F5.0-6.3 II has a filter size of 72mm whereas the Canon 100-400mm f4.5-5.6L IS II USM has a 77mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the OM System 100-400mm F5.0-6.3 II:
And these are the 77mm filters that we recommend for the Canon 100-400mm f4.5-5.6L IS II USM:
Lens Mounts
The OM System 100-400mm F5.0-6.3 II has the Micro Four Thirds lens mount whereas the Canon 100-400mm f4.5-5.6L IS II USM has the Canon EF 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 Blackmagic URSA 12K LF, Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount.
Focal Range
Both lenses have the same focal range of
100-400mm but while OM System 100-400mm F5.0-6.3 II has the fastest aperture of
F5-6.3, the Canon 100-400mm f4.5-5.6L IS II USM's widest aperture value is
F4.5 - F5.6.
