Christopher Frost has posted review of RF 400mm f2.8L Lens.
One could also check reviews of the EF version, since they’re essentially the same lens.Christopher Frost has posted review of RF 400mm f2.8L Lens.
Yeah same optics, I do like the option not having to use the RF to EF adaptor while using a TC with the "new" RF versions. Not sure that is enough to ignore the savings of picking up the EF version tho.One could also check reviews of the EF version, since they’re essentially the same lens.
"Just" the optics. The AF drive and the electronics are different. It would be interesting to compare both lenses if the performance is improved.since they’re essentially the same lens.
means.Der duale Fokusantrieb sorgt mit kompatiblen Kameras für einen schnelleren Autofokus.
I suspect it's the same "Dual nano-USM" Canon is putting in other RF L lenses."Just" the optics. The AF drive and the electronics are different. It would be interesting to compare both lenses if the performance is improved.
And I wonder what
means.
(The dual AF drive gives you faster AF with compatible cameras)
Quoted the German homepage of Canon.
There is nothing similar on the page of the EF 400 2.8.
‘Compatible cameras’ may mean those with high voltage batteries like the R3. That’s true for EF supertele lenses, as well."Just" the optics. The AF drive and the electronics are different. It would be interesting to compare both lenses if the performance is improved.
And I wonder what
means.
(The dual AF drive gives you faster AF with compatible cameras)
Quoted the German homepage of Canon.
There is nothing similar on the page of the EF 400 2.8.
No, two ring USM:I suspect it's the same "Dual nano-USM" Canon is putting in other RF L lenses.
Der Fokusantrieb mit zwei Ring-USM-Motoren
Not an ‘official statement’ per se, but mentioned on a few occasions by Chuck Westfall (Canon USA’s technical mouthpiece, sadly now deceased). For example, “In addition, the EOS-1D X achieves a higher lens motor drive speed with select L-series USM telephoto lenses than the 5D Mark III because of the 1D X’s more powerful battery pack.” (link) In other statements, he specified he is referring to EF supertele lenses.Or have I justed missed a offical statement the AF being faster with a 1 series body?