Nano USM allows full time manual focus the same way an STM lens does. The first Nano USM lens was the EF 70-300mm F/4-5.6 IS II USM lens which was released in 2016. Not all of Canon's L lenses use Ring Type USM AF motors. All early EF Mount lenses used Arc Form Drive (1987-1992) then later Micro Motor from (1993-2012).
When I want to go light now I guess I will still have to carry two lenses. The question is what two, the 24-70 f/2.8L II and maybe a 70-200mm f/4L IS or just work with the 24-70 and the 100 f/2.8L Macro or 135 f/2L tele. Or bight the bullet and search out good Mk 1 or the just buy the new Mark II and work with that. Don't know.
So, I saw the Canon 24-105 STM on Canon Rumors and I was kinda dissapointed. I really wanted a Mark II version of the 24-105 f4L. I like the new lens and all, but its f3.5-5.6
670g. 700g. Nous préférons un poids plus léger car l'appareil sera plus facile à porter. Un poids peu élevé est aussi un avantage pour l'électroménager et d'autres produits car ils seront beaucoup plus faciles à transporter. L’élément frontal ne tourne pas. Canon EF 24-105mm F/4L IS USM. Canon RF 24-105mm f/4L IS USM.
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