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    Adapter Instructions

    In Ask the EOS Experts in the latest issue, John Thorne queried the instructions from Canon re the procedure for using an EF to R adapter on the R7. I was intrigued by the answer as in it, it was suggested that if the camera is switched off whilst changing lenses, it will make no difference whether you follow the Canon procedure and connect the lens to the adapter and then attach the combined unit to the camera or merely attach the lens to an already installed adapter. The answer is correct it works but, in fact, you should turn the camera off whenever you change lenses as the charge on the sensor will act as a magnet for dust. This has been a Canon recommended procedure even with DSLRs but is even more important with mirrorless cameras as removing the lens with the camera turned on, directly exposes the charged sensor to the atmosphere..
    Alan

    2 EOS 5D Mk IVs, EOS R6, EOS 3 (film camera), Canon 20mm f2.8, Sigma 35mm f1.4 Art, Sigma 50mm f1.4 Art, Sigma 105mm f1.4 Art, Canon 85mm f1.8, Tamron 24-70 f2.8, Sigma 70-200 f2.8 OS Sport and Sigma 150mm f2.8 macro. Canon RF 24-105mm STM

    http://www.springfield-photography.com/

    #2
    Fully agree Alan, I’ve always switch the camera off before changing lens whether SLR or DSLR
    Trev

    Equipment - According to the wife more than a Camera Shop got

    Flickr:
    https://www.flickr.com/photos/trevb2639/

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      #3
      It has actually said to do this in every instruction manual for all of my Canon digital cameras, and I have owned 8 in total.
      Alan

      2 EOS 5D Mk IVs, EOS R6, EOS 3 (film camera), Canon 20mm f2.8, Sigma 35mm f1.4 Art, Sigma 50mm f1.4 Art, Sigma 105mm f1.4 Art, Canon 85mm f1.8, Tamron 24-70 f2.8, Sigma 70-200 f2.8 OS Sport and Sigma 150mm f2.8 macro. Canon RF 24-105mm STM

      http://www.springfield-photography.com/

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        #4
        Totally agree….and surely breaking the electrical contacts when still live between body and lens is not a good idea
        Brian Vickers LRPS

        brianvickersphotography.com

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          #5
          I agree too Alan, should always switch off when changing lenses. You never know when dust is going to land inside the body of your camera and once it's in its going ruin all your pictures until you get it cleaned. I wouldn't take the risk of having an electric/static charge present when changing a lens over.

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            #6
            Another of my students actually has an R7 as referred to in the response. I checked the Manual and guess what?

            They even emphasise the word OFF
            Attached Files
            Alan

            2 EOS 5D Mk IVs, EOS R6, EOS 3 (film camera), Canon 20mm f2.8, Sigma 35mm f1.4 Art, Sigma 50mm f1.4 Art, Sigma 105mm f1.4 Art, Canon 85mm f1.8, Tamron 24-70 f2.8, Sigma 70-200 f2.8 OS Sport and Sigma 150mm f2.8 macro. Canon RF 24-105mm STM

            http://www.springfield-photography.com/

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