https://www.usa.canon.com/internet/portal/us/home/products/details/lenses/ef/super-telephoto/ef-400mm-f-2-8l-is-iii-usm
Chief Editor - opticallimits.com
Doing all things Canon, MFT, Sony and Fuji
Nice, but way out of my reach/league. I'd prefer the lighter and cheaper 500/5.6 Nikon.
Yeah, the Nikkor is attractively priced for sure. The Canon Ef 400mm f4 DO IS USM II is priced quite a bit higher, and then you still have to get a 1.4x TC to get to 560mm.
The quality of the Canon for sure is better, not to mention the bokeh and lowlight capabilities - but a good sensor can compensate the lack of speedy apertue of the Nikkor to a degree.
Guess you're not going to test it Klaus...
Though I wager testing the brand name big superteles is kind of pointless anyway - at that price point they should be (and probably are) perfect from the get go. The more affordable alternatives are a different story - but they're exponentially harder to procure.
I remember Markus did test a Nikon 200/2 but I think he only did this because he was renting / owning this lens at the time so it was kind of easy to run it through the lab...