Originally posted by csa I'll have to experiment, I have the Magnifying eyecup on mine, so don't know if plastic will slip behind it or not.
So do I but the idea is to slip the plastic in front of the eyepiece but under the rubber edges so that they hold it in place. I would have to check if the optical part sits higher (i.e. closer to the eye) than the frame. If so it might not be feasible to use the plastic as it might scratch the eyepiece lens.
---------- Post added 21st Sep 2016 at 20:24 ----------
Originally posted by MJKoski I stuffed Sugru around the black plastic OVF cover piece. It is now sealed shut for ever.
I rarely, if ever, use live view so that wouldn't work for me.