• Members 2 posts
    May 19, 2023, 1 p.m.

    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

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  • Members 96 posts
    May 19, 2023, 1:47 p.m.

    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.

  • Members 260 posts
    May 19, 2023, 2:11 p.m.

    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 :-) )

  • Members 96 posts
    May 19, 2023, 3 p.m.

    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.

  • Members 31 posts
    May 21, 2023, 7:06 a.m.

    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.

  • Foundation 1244 posts
    May 21, 2023, 8:19 a.m.

    Depending on how it bothers you, be aware that the use of the EF to RF adapters add weight and, more significantly, the mass of the lens attached is moved further from the camera. I was acutely aware of this yesterday when using my EF70-300mm lens on my R6. The idea was to get a little more reach and one stop more of aperture than I get with the otherwise excellent RF24-240mm; but I was acutely aware of the unbalance, which made holding the ensemble stationary a challenging exercise at 300mm extension, and the added mass just went over the edge of what I find comfortable to carry with one hand.

    David

  • Members 482 posts
    May 21, 2023, 9:03 a.m.

    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) 😁

  • Members 2 posts
    May 22, 2023, 11:26 p.m.

    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

  • Members 16 posts
    May 25, 2023, 2:01 p.m.

    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)

  • Members 260 posts
    May 25, 2023, 3:16 p.m.

    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 )

  • Members 511 posts
    June 2, 2023, 4:47 p.m.

    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.

  • Foundation 1244 posts
    June 21, 2023, 8:54 a.m.

    I am interested to know how many people here have actually changed to the Canon R system, and how many are using RF lenses. In my own case, I find the mirrorless system enables me to take much better photos — which is not to say that other photos that I see here are inherently inferior. I am just interested to know others’ take on what I personally find to be a much better system than the EOS DSLRs.

    David

  • Members 482 posts
    June 21, 2023, 10:41 a.m.

    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😎

  • Foundation 1244 posts
    June 21, 2023, 11:38 a.m.

    The EF lenses work well on R cameras. But do you consider that the DSLRs give as good results as the R series cameras?

    Best,

    David

  • Members 482 posts
    June 21, 2023, 12:46 p.m.

    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 😁

  • Foundation 1244 posts
    June 21, 2023, 1:01 p.m.

    The 5D is surely a full frame camera. RP and R can be compared with the 5D.

    One of things that I value highly on the RP and R6 is the Fv mode. I use it all the time with af lenses.

    David

  • Members 511 posts
    June 21, 2023, 1:09 p.m.

    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!