Adapter Instructions

[SpringfieldPhoto]

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..

[Trev B]

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

[SpringfieldPhoto]

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.

[@imagesBV]

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

[NathCarr91]

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.

[SpringfieldPhoto]

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