Keith wrote:
>Point and shoot cameras get round the problem by pre-flashing to make the
>irises 'stop down' so there isn't so much retina visible to reflect back the
>light.
The trick with pre-flashes and stopped down irises is, that because of the
stopped down iris less light reaches the red retina. So the inner part of
the eye keeps dark enough not to be detected by the film.
Matthias
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