Here's another one I was thinking of getting (Brunton 54LU). http://www.thecompassstore.com/54lu.html You sight it similar to a GI lensatic. However, I couldn't find any locally to test out (to see if it would work with my vision). Also, the scales were for 1:25000 and 1:50000 and I would have preferred 1:24000 and 1:62500 to match US topo maps. Plus, the dang thing seems pretty expensive for what it is. I probably would have opted for the GI lensatic over this model because of its more rugged nature and lack of fluid to experience bubbles. Plus, the GI lensatic, even the tritium one, is less expensive. But the Brunton 54LU is just so "cute", and I like its clear baseplate...