The problem of direct colour photography has been facing us since the turn of the last century.More Jonas Ferdinand Gabriel Lippmann quotes [09/21/2011 04:09:03]

When the shot is afterwards subjected to white light, colour appears because of selective reflection.More Jonas Ferdinand Gabriel Lippmann quotes [09/21/2011 04:09:18]

The series of photographic operations, developing, washing, final drying, takes about quarter of an hour.More Jonas Ferdinand Gabriel Lippmann quotes [09/21/2011 04:09:09]

In the case of composite colour, an infinity of systems must be obtained for maxima infinitely slight and with an infinity of interval values separating them - that is to say, the whole thickness of the sensitive layer is occupied in continuous manner by these maxima.More Jonas Ferdinand Gabriel Lippmann quotes [09/21/2011 04:09:35]

The length of exposure (one minute in sunlight) is still too long for the portrait. It was fifteen minutes when I first began my work. Progress may continue.More Jonas Ferdinand Gabriel Lippmann quotes [09/21/2011 04:09:50]