The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sony FE 400mm F2.8 GM and the Canon 400mm F4 DO 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. Sony FE 400mm F2.8 GM is the longer of the two lenses at 359mm. The Canon 400mm F4 DO IS II USM with a length of 233mm, is 126mm shorter. Besides being longer, the Sony FE 400mm F2.8 GM also has a larger diameter of 158mm compared to the Canon 400mm F4 DO IS II USM's 128mm diameter.
Below you can find a scaled side-by-side image of Sony FE 400mm F2.8 GM and Canon 400mm F4 DO IS II USM to get a better idea of how their sizes compare in real life.
Comparison image of the Sony FE 400mm F2.8 GM and the Canon 400mm F4 DO IS II USM 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. Canon 400mm F4 DO IS II USM weighs 2100g, 27% (795g) lighter than the Sony FE 400mm F2.8 GM's weight of 2895g.
Filter Threads
The Sony FE 400mm F2.8 GM has a filter size of 41mm whereas the Canon 400mm F4 DO IS II USM has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 41mm filters that we recommend you to consider for the Sony FE 400mm F2.8 GM:
And these are the 52mm filters that we recommend for the Canon 400mm F4 DO IS II USM:
Lens Mounts
The Sony FE 400mm F2.8 GM has the Sony E lens mount whereas the Canon 400mm F4 DO IS II USM has the Canon EF lens mount . Some of the latest released cameras that are compatible with these mounts are Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E 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
400mm but while Sony FE 400mm F2.8 GM has the fastest aperture of
F2.8 , the Canon 400mm F4 DO IS II USM's widest aperture value is
F4.0 .
