Steve, it's a liquid, not a gel. But yes. The thing I don't like about Nikon bodies is the manual in-focus indicator on DSLR's, tucked away the the bottom left hand corner of the finder, I have to take my eye off the subject to use it when focusing manually. I've got a little Pentax DSLR which beeps to show that it's in focus in manual focus mode, much easier. Why can't Nikon (and Canon) bodies do this?