Patent: Canon RF mount Big White Lenses

I had a hope Canon will do a mount conversion service on the EF 600mm f/4L IS USM III and EF 400mm f/2.8L IS III, but if they are going to introduce new lens probably they are not going to do mount conversion on the EF version
why would you prefer to mount convert your lens? Isn't it so that one day when you decide to sell your lens, there are more potential buyers for EF than for RF mount because EF can be adapted to other systems as well? Wouldn't it more beneficial to purchase EF-RF adapter and leave it to the lens ( = more options in future)
 
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Mar 26, 2014
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:sleep: wake up and face reality... :eek:
I have, too bad you seem to be stuck in the past. Already the old 300 is only 2.3kg, so hardly a stretch to achieve 2kg with the new lightweight magnesium alloys and redesigned optics. I'll bet you also dismissed the idea of a 400 f/2.8 under 3kg too. LOL
 
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