
Originally Posted by
Roger Clark
Rob,
Yes, certainly. That method is called the "hat trick exposure" dating back to probably the 1950s (before my time) when people wore hats more. They would use their hat to cover the lens. But that only works for longer exposures, say 1/5 second or longer, and with poor reproducibility. That is not good for a moving subject (like the Moon or planet with the rotation of the Earth). I have used the "hat trick exposure" many times, but I use a piece of cardboard, and for exposures of about a second or more.
Roger