Summary: Negatives first: I didn't like the plastic cap as it doesn't fit properly and can be hard to put on. It took a couple of minutes to put it back on after viewing. I'm going to have to take a Dremel tool and a grinding wheel to the cap to try remove some of the plastic to enlarge the cap enough to fit snugly but still be easy to take off and out back on. It really is a poorly made item. The other big annoyance is with the slow motion control cables.