The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Canon EF 400mm F2.8L IS III USM and the Panasonic DG 200mm F2.8 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. Canon EF 400mm F2.8L IS III USM is the longer of the two lenses at 343mm. The Panasonic DG 200mm F2.8 with a length of 174mm, is 169mm shorter. Besides being longer, the Canon EF 400mm F2.8L IS III USM also has a larger diameter of 163mm compared to the Panasonic DG 200mm F2.8's 88mm diameter.
Below you can find a scaled side-by-side image of Canon EF 400mm F2.8L IS III USM and Panasonic DG 200mm F2.8 to get a better idea of how their sizes compare in real life.
Comparison image of the Canon EF 400mm F2.8L IS III USM and the Panasonic DG 200mm F2.8 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 DG 200mm F2.8 weighs 1245g, 56% (1595g) lighter than the Canon EF 400mm F2.8L IS III USM's weight of 2840g.
Filter Threads
The Canon EF 400mm F2.8L IS III USM has a filter size of 52mm whereas the Panasonic DG 200mm F2.8 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 52mm filters that we recommend you to consider for the Canon EF 400mm F2.8L IS III USM:
And these are the 77mm filters that we recommend for the Panasonic DG 200mm F2.8:
Lens Mounts
The Canon EF 400mm F2.8L IS III USM has the Canon EF lens mount whereas the Panasonic DG 200mm F2.8 has the Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with these mounts are Blackmagic URSA 12K LF , Z CAM E2-F6 II 6K and Z CAM E2-S6 II 6K for the Canon EF Mount and OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Canon EF 400mm F2.8L IS III USM is a prime lens with fixed focal lenght of 400mm. When it is mounted on an APS-C sensor camera with 1.6x crop, it provides a 35mm (FF) equivalent of
640mm .
On the other hand, the Panasonic DG 200mm F2.8 is a prime lens with fixed focal lenght of 200mm which has an effective (full-frame 35mm equivalent) focal range of 400mm when used on a FourThirds format camera.
