Hi Michael, I think you're intuition is spot on. I've been watching and cataloging tri-color camera sales for over a decade, and I bought the first tri-color...
Scott,  Have you ever seen any of the 1-mirror cameras come up? These used bi-packs made by Defender and others(?), I believe the Curtis K-D was such a...
Hi Chris, Yes, the single mirror cameras do appear, but not all that often. I have never seen a K-D camera offered for sale. I keep looking. I just took a...
Hey Scott, Â Thanks for such a comprehensive list of bi-pack cameras. Â It's true that the necessary materials aren't available, though it could be fun to...
Chris and I had talked about two color images a little on APUG some time back, as well as the possibility of hand crafting a new tri-color from scratch. I...
Technicolor moved from Red/Green in System I to Cyan/Magenta filtration in Systems II and III. I've posted a photo of System III beam splitter at the link...
... I don't think that's necessarily true. I had quite a running chat with Ron (PE over at APUG) behind the door about the time that Kodachrome was biting the...
Thanks for posting those pictures Earl. The 2-color dye-transfer is very interesting, and the Technicolor beamsplitter is quite the artifact!  I'm very...
Hi Earl, Dye Transfer was introduced in 1946. Its predecessor, Eastman Wash-off Relief existed from 1935. Not to be picky, but if 1937-38 is accurate, it...
Hi Scott, The subject of the photo is my dad's brother, who was born in '24. My guess is that he's between 13 and 15 in the photo, hence the estimated dates...
Hi Michael, Thanks for the tip on the Aussie Kodachrome processing efforts. I wasn't aware of that but will look into it. I've been tempted to try building a...
Hi Earl, I can sympathize with your statement about waiting for retirement. I seem to be in the same boat these days. My interests far outstrip my free...
Hi Chris, Regarding information about 2-color, two books came to mind. When I got home last night I briefly checked them out. They are The Illustrated...
There aren't many examples in existence of John Capstaff's two-color Kodachrome process. However, as luck would have it, the National Museum of American...
Please check your Yahoo spam folders. A message I sent to the group was, for some unknown reason, classified as spam by Yahoo. Thanks, Mark Jacobs ...
In the light of the two-colour discussions here, the page linked below may be quite relevant. There is a description there on how nature's 7 colours would...
Hi Jay, Some years ago I found a Cinecolor projection lens. At the time I searched the web for information on Cinecolor and found a brief mention at the Wide...
Thank you for the Smithsonian link, Mark. The only glass plate Kodachrome I've seen is the one in Jack Coote's book. The process does indeed produce decent...
I'm only aware of the two versions of Kodachrome as well: Capstaff's 1914 version and Paul Simon's version. Perhaps the author is counting the two varations of...
Scott,  Thanks much for mentioning these books. I've heard of Coote's book but have never been able to find a copy, now I'm a little more motivated to do...
Alticolor was the final version of Lumiere's color screen media. A seller in France has listed boxes of A106 roll film with an expiration date of 1956. ...
You have a good memory, Jay. I bought 2 bricks. The brick price at the time was reasonable. I haven't gotten around to shooting a roll yet. Just for...
Scott, would the standard  BW reversal processes work for Alticolor? I read somewhere that these additive screen colour films lived, or were available, up to...
Hi Jay, Yes, standard reversal processing should do the trick. I have directions for processing Autochrome and Dufaycolor in a number of sources. I may...
