Aaron and Uncle Rog dissect Canons new Mirrorless: Teardown of the Canon EOS R Mirrorless Camera
Uncle Rog stated it quite early above the striped camera picture when he starts to remove the grip rubber:a question regarding the body material - is it polycarbonate or magnesium alloy?
Roger Cicala said:The shell, BTW, seems to be a polycarbonate with a slightly rough surface
He did, and that is the problem. The first comment posted an advertising photo of the stripped body from Canon claiming it is magnesium alloy. So, who has it wrong - Roger or Canon?Uncle Rog stated it quite early above the striped camera picture when he starts to remove the grip rubber:
Thanks for the heads up. The summary should be read by everyone debating the various options. There is a question regarding the body material - is it polycarbonate or magnesium alloy?
Oh, sorry, Alan.He did, and that is the problem. The first comment posted an advertising photo of the stripped body from Canon claiming it is magnesium alloy. So, who has it wrong - Roger or Canon?
Thanks Lars for adding this.Canon states that it has magnesium alloy.
The weather sealing is worse than I thought though, and why bother to seal the buttons when the rest isn’t? Well, I was waiting for this teardown to known for a fact, and I’m glad I know. I’ll be a bit more careful with this than I was with my 1-series
Oh, sorry, Alan.
I didn't get your question right. Now I got it.
Thanks Lars for adding this.
If the magnesium alloy body is primed then it could look like the photo from LensRentals. If you look closely it seems to be painted.
If Canon does a marketing shot of and magnesium alloy body they will make it as shiny as above.
Magnesium alloy doesn't feel like typical metal because of its light weight and heat dissipation behavior.
Maybe this together with the primer is the reason why Roger was mislead, but I would expect him to know that.
I can't believe Canon would claim for an magnesium alloy body if it was plastic instead.
They have said that, but, as Roger Noted, that shell really looks like polycarbonate in the photos he provides. Magnesium is pretty easy to spot unless they have some process to make it look like plastic, or a plastic coating to protect it from corrosion, which seems uber unlikely.Canon states that it has magnesium alloy. The attached picture is from Canon USA website.
Well, because it's a lot easier for water to seep in past an un-sealed button or dial than it is for it to seep through a seam of two pieces of plastic fastened to each other. I mean, the buttons and dials are literally holes in the top/sides of the camera. Of course those need sealing moreso than areas where there are two pieces of material tightly fitted against each other.The weather sealing is worse than I thought though, and why bother to seal the buttons when the rest isn’t?
Thanks for posting this.Mr. Cicala's answer to the same question : "It is magnesium alloy, as they say, but it's got quite a different feel to it."