I mentioned in an earlier post that there were some interesting scenes captured with a DSLR while waiting for much longer exposures on the telescope.  Here is an example; a shot of a deep canyon with the Big Dipper overhead.  At first glance, this looks like a fairly ordinary daytime photograph – that somehow has stars showing!  In fact, this was shot late at night, after the Moon had set.  Except for a small area on the right edge of the rim, there is nothing but starlight (and a bit of light from distant cities) illuminating the scene.  That bright […]