Canon 400mm lens

[beesley]

From an image quality view point which of the current Canon 400mm lens is the best. In particular how does the DO lens compare with the L lens.​

 

[JustAnEngineer]

The DO lens is smaller and lighter than the fully-refractive lenses.

Canon EF 400mm f/4.0 DO IS USM Lens Review

Canon EF 400mm f/2.8 L IS II USM Lens Review

 

[Montana]

From a purely image quality point of view, its hard to beat the 400 2.8 II. The 400 5.6 however is a very sharp lens as well. Not a fan of DO optics myself.