Greetings! I picked up a used Canon lens recently and I've been trying to find out if it needs a firmware update or if it's too old for that. The problem is I can't find this specific lens in the Canon drop-downs when trying to pick it from the list they provide. The lens in question is the Canon Zoom Lens EF 70-200mm 1:2.8 L IS USM. I can find variations of this lens, such as an RF mount version, but I can't find this exact lens. Everything on the website is at least slightly different. Anyone know how to locate this lens firmware, or if it indeed is updatable via firmware? When I attach the lens and view the firmware versions on my camera, the menu system doesn't show a lens choice for firmware like it does with other updatable lenses. Is it too old for that or is it because the lens is connected to the EF-RF adapter and not directly to the camera? Thanks in advance.
