 Sherree Coysh |
Sandwiching Transparencies I recently read that it is possible to place one transparency over another and then have it printed...they negelected to say how this was done.One example was a girl photographed against a white background and then combined with a dry creek bed.It said to use colour reversal film. What is that?
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John A. Lind |
Sherree, color reversal is a.k.a. slide, transparency, diapositive and "chrome." "Transparency" is a more proper term for the processed film as it's what you have after it's developed. "Reversal" refers to the developing process. "Diapositive" refers to it not being a negative, "chrome" is a slang term taken from most of the film names (Kodachrome, Ektachrome, Fujichrome, Agfachrome, etc.) and a "slide" is a transparency mounted in a frame for projection. The reason for using transparencies? Look at a color negative. It has an orange cast to it. This is from the orange mask embedded in the film base. Transparency films have a "clear" film base. The dyes in the three color layers in color negatives are cyan, magenta and yellow. However, they are not *perfectly* pure in color. One of them (cyan??) contains some yellow. The purpose of the orange mask is to balance the over-abundance of yellow. If you were to sandwich to negatives together, the two orange masks combined could become problematic in printing. In addition, working with transparencies to align the images on them properly in doing this trick is much, much easier than working with negatives. -- John
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BetterPhotoJim.com - Jim Miotke  Contact Jim Miotke Jim Miotke's Gallery |
John is correct... and sandwiching slides can be a heck of a lot of fun. Check out the gallery of Tony Sweet - it has many amazing examples of this process. Also look for a really cool book called Photographing Creative Landscapes by Michael Orton.
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