The Olympus 12-100, equivalent to a 24-200 FF, is pro quality lens, or so Olympus says. Canon makes/made a 28-300 L lens that is large, heavy and expensive. I use lenses in that class when I want to go lightweight, which seems to be more often as I get older. My days of hiking up creek beds with a 22 lb backpack to photograph waterfalls are over.Didn't realize Canon needs to match other manufacturers, especially from the Micro 4/3 realm. Where is the Olympus equivalent of Canon's RF 28-70 f/2, tilt shift lenses, or any number of other lenses? Where is Sony's 500mm, 600mm, and 800mm? Though a 24-200 f/4 might be interesting, what would it take to match the bokeh from the Olympus? f/5.6? I don't know, but if so, then Canon probably has that covered in EF with the EF 70-300 f/4-5.6L. Maybe we should wait a couple of years to see what Canon does. R/RF is a brand new system. Micro 4/3 won't ever match FF in low light either.