These are not Autochrome images. The technique is to stack the cameras one on another with separation filters in front. The shutter is a drop shutter that is very similar to a focal plane shutter but placed in front of the lens assembly. As it is dropped, each camera gets exposure as the slot passes in front of the lens. Cool design from 100 years ago James -----Original Message----- From: owner-photoforum@xxxxxxxxxxxxxxxxxx [mailto:owner-photoforum@xxxxxxxxxxxxxxxxxx] On Behalf Of trevor@xxxxxxxxxxxxxxxx Sent: Wednesday, September 08, 2010 6:41 AM To: List for Photo/Imaging Educators - Professionals - Students Subject: Re: Photos from a century ago These old autochromes seem to be floating around the list these days...mind blowing pictures > I like old photos in general, but these are also technically impressive. > Circa 1910: > > http://www.boston.com/bigpicture/2010/08/russia_in_color_a_century_ago.html > > Enjoy! > > ********************** > www.alberto-tirado.com > > > > >
