I like my 35S as well. I have carried it in my pocket as an after thought many times. Estimating close distances is not that hard if you have a reference in your mind. I think in terms of how wide is a sheet of plywood, which I am very familiar with. Distances much longer are easier to guess especially if you have a good idea of what 20 feet looks like. For the always on meter I put a small piece of black electrical tape over the sensor when not in use. Also for a lens cap you can use the plastic cap off a plastic 35mm film can. The Sonnar lens is very good though more expensive than the regular Tessar.