>At the time I bought my sound recorder, Zoom H4n, I was shown >a very small and well built metal Sennhaurer that looked great >for travel. It was only about three inches long and came >highly recommended by a knowledgeable salesperson.
Sounds like the Sennheiser MKE 400. I have two of them and they are great little mics for on camera use - very small and light weight, easy to travel with and doesn't take up much space in my camera bag. I got my first one about 2 years ago and have not had any trouble at all. Powered by a single AAA battery that will power it for a really long time.