Canon mirrorless Cameras

Hello
I’m thinking about changing my current 5d mark IV to a Eos R6 MKII.

Is there a way to use canon and sigma lens on the R6? If there is an adapter that allow DSLR lens to be used with mirrorless cameras will I suffer extensive performance loss?

Thanks in advance

Rich

Yes, there are adapters from both Canon and third parties for using EF mount lenses on the Canon RF mount cameras such as R6II. Generally speaking, the EF lens / adapter / RF mount camera combinations will work like a charm, in some ways even better than with DSLRs, since there's no need for autofocus fine-tuning.

I don't even currently have any native RF mount lenses so far, just a set of EF lenses. All of them I've tried with my R7 work without issues.

as RF 100mm macro shows - focus shift exists when you focus @ one aperture (wide open that is for Canon) and shoot @ another aperture ( and more so - can't be fixed so far :-) )

True, that can still be a problem. Strictly speaking I used the wrong term, since the AF misalignment on DSLRs isn't quite the same thing as focus shift.

Just be mindful or possible pulsing on the sigma 150-600 and maybe odd other Sigmas. (My Sigma 180mm macro is fine). Generally you'll be fine.

What @davidwien mentions is something to keep in mind, I also fnd the balance with the EF lenses not perfect when used on a R series camera with the EF-RF adapters
The weight balance moves to the front and every combo will be a bit "nose" heavy.
But with the Canon EF-RF adapters EF lenses do work perfectly (some even better) on a R series body. And that is something I do like because I do own a lof of EF (L) glass (older/classic and newer ones) 😁

Thanks for the quick response and answers.

A few more questions.

By the answer it appears my Ef lenses will work fine. Does any one have experience with the sigma 60-600 on the R5 or R6?

My projected budget could include the R5 kit with the R24-105. I currently have the EF 24-105 for my 5D Mark IV. Would it be worth buying the R5 kit with the R24-105? My instinct says no. But if I sell my 5D I might make it more sellable by offering it as a kit.

Thanks in advance

Rich

I've shot both versions of that zoom and the RF is the better lens. It also adds the control ring, which can be customized, and will focus faster, and close down the aperture when the camera is shut down. So yes, it's worth it. (IMO)

I 'd vote to sell 5DIV w/ EF24-105 and buy R5 w/ RF24-105 ... is not a magnitude better lens by all means but for as long as you can afford (it is not like you are selling a kidney or two) then small level benefits and conveniences just make sense ( specifically if you then plan to sell that later too, just in case )

That should correct itself a few shots into a burst with AIServo, as the camera does AF stopped down to shooting aperture during bursts. Not an elegant workaround, but could help some people.

I'm and I'm not (mixed bag literately) 😆

We do own both a R series camera (R and RP) with a set RF(L) lenses from 16mm to 240mm and did actually bought a second 24-240 yesterday for when we want to hike/travel light
But we also both use Canon Eos DSLR's (5DIV and 6DII) and I still use a few analog Eos bodies so we own also a lot EF(L) lenses from 14mm to 600mm.
And with our EF-RF adapters we can use those lenses also on our R and RP😎

Well considering that the R is like the 5DIV(sensor) and the RP is like the 6DII (sensor) the biggest advantage is size for us.
R and RP are smaller compared to our DLSRs And the other main difference could be Focusing with the R series should/could be better because it direct on the sensor
The R5, R6(II) might be better than the fulldrame DSLRs but I don't own these so can't check 😁

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I was worried about EVF lag, and that is why I was hoping for one more successor to the 7D2 (a more "professional" 90D), but lag has not been much of an issue at all. I bought an R5 and was very happy with the EVF. I really like the way that the R5 and now the R7 can identify faces and eyes and lock onto them, and AF with almost any open f-number, but there is one aspect of AF that is much weaker with these mirror-less cameras than with DSLRs; the depth in the field at which the AF can "see" is much shallower with image-sensor AF, which causes the AF system to get stuck, often losing what would otherwise be ideal photo-ops. For example, if I focus on a bird on the front of a bush 25 feet away, and it flies towards me and poses like a model on a fence 8 feet from me, a bird photographer's dream, both cameras will stay focused on the background, and act as if they have already achieved focus. Neither camera offers any kind of button assignment to nudge the AF, and many lenses have no manual focus override, or the ones that do have too slow of a focus ring speed to get close to focus in one twist of the wrist. With my 400/4DO II, it can take 4 or more turns of the focus ring!

So, even though when focus is already close, these cameras can be miraculous compared to DSLRs, they are completely unreliable for focusing on anything that is suddenly much closer. The ironic thing is, with DSLRs, the faster your lens, the better the AF speed and accuracy, but with the R5 and R7, the faster the lens, the more likely the AF will stall when a subject is suddenly very close, because the fastest lenses have the least DOF wide open!