I don't have this lens, but when I photograph in rain I don't worry that much about the body when using a lens with no weather sealing. I usually put a cloth over the lens to mostly prevent whole drops from getting through, and wring out the cloth when it gets too wet. So far this has worked. Of course when not using the camera I keep it out of the rain. Usually when rain gets very heavy I stop photographing, not entirely because of equipment though.
I use a cloth vs. plastic because once the cloth gets wet it sort of sticks to the lens. If you have a way of attaching plastic to the camera that could be good too. I do have the inexpensive ($5US?) plastic rain guards with an opening for a lens, but only use them if I'm going to be using the camera a lot - like if I was at an event and wanted to keep in out all the time.
Also you could seal the seam around the lens with gaffer tape if you really wanted to, but a roll of that isn't exactly handy to carry and costs as much as some of my lenses.
Last edited by tibbitts; 03-25-2018 at 06:27 AM.