>Flapping glass mirrors are an arcane and ancient
>joke. They are almost past their use by date.

The Canon Pellix did away with a flapping mirror way back in the 1960's ...
Seemed to be an idea that just didn't catch on then because it took some
light away from the film. That is one area where the digital camera can be
an advantage - you view the electronic signal, so the exposure device still
gets maximum light.

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