Has anyone encountered rust on SLR Mounting rim? Not those pins or marks, but the metallic rim which is to match with SLR lenses.
I suppose both mounting rims from body and lense are of same material. However, mine has slight rust stains. I went for servicing the camera, and the technician said that it will rust if contact with water, like raindrop.
Could anyone advice if this reply is reasonable. And what could be the material of the rim of my Canon 70D.