lattesweden
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But we will never adapt RF lenses on FE. It isn't physically possible. Nikon Z might be able to take them physically since they have 4 mm distance to produce a tube adapter and they have about the same mount diameter, so there it might work, but not on FE.
Same with the Z lenses, will not be adaptable on FE physically.
So for FE, it is only the Canon EF lenses (and other existing lens brands of course) in play and those they will most likely not change the protocol on.
Yes, true, if they did that. But that is still a firmware upgrade nightmare since people needs to update all their stuff at the same time. The support department will get a call or two thousands, maybe even more.
But if they did that then the 3d party makers of RF and Z lenses would have bricks, yes.
But we would still adapt the EF lenses just fine on FE, so why worry?
How do you know when a lens has been stolen and how do you distribute that info to all other bodys so they don't accept that lens? Or do you want to have a password or fingerprint reader on every lens so it needs to be unlocked when you mount it? Don't you think mirrorless cameras have slow enough starting times as they have already?
Maybe an Iris scanner in the EVF also?
Yes, open standards are always preferable than proprietary ones for the users.
Yes, and it also slows down their own communication by using CPU power to chew the encryption. And even if the body probably has CPU power enough, does the lenses? And it will drain battery quicker, like the CIPA ratings isn't bad enough for the R (and Z).
Yes, speed boosters are good on crop sensor bodys. But has no meaning for FF unless you start to adapt medium format lenses made for larger image circles, then it would be meaningful again as the usecase is the same (lens made for larger sensor adapted to cropped sensor).
You are right that we don't know if it is pass through or not, I found that explanation in an article somewhere on the net and I am old enough not to trust everything I read on the net, but it sounded reasonable at least I thought. Since it is better to use the logic circuitry (the computer so to speak) in the body that already must be there for other things and a have the adapters totally logic free and only have a wiring that connects the pins on each mount side with the other side.
The RF mount has more pins, so it can be so simple that they just added on extra communication on the side, like plugging in two Ethernet ports on your NAS.
It can also be that the adjustable ring is connected on the extra pin contacts to the body and talks to it and that the body then sends the signal to the lens on the usual EF protocol on those pins. Pure speculation from my side. But if one can choose the function on that ring and I understand it like that, it must communicate with the body. In time someone will figure it out how it really works.
We should have spotted the extra pins then.
But you are right that Canon maybe could extend the new DSLR bodys with more pins if it isn't something physically that hinders that against the EF-mount and they could make future EF lenses dual knowledge and also have the extra pins in their mounts. But at least I have a hard time to see Canon going through with all that since it will require a lot of testing with all old bodys from 1987 and on so nothing accidentally stops to work physically and/or on a signal level. I can't see it being worth the work or the risk.
Ok, thanks for the explanation!
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Best regards
/Anders
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