John Francis wrote: > While later film recorders may well have used lasers, that's not how > the original models worked. Back in the 1980s I had access to a film > recorder where I worked (Apollo); we used it to make slides for images > that we were submitting to SIGGRAPH. > > Inside was a small monochrome high-resolution CRT, and a rotating > filter wheel. > Each of the three colours would be exposed in turn (the camera shutter > would be open for the whole time). We had multiple interchangeable > "backs" for the unit; one with a modified 35mm SLR camera, two Polaroid > backs (one 4x5, one 8x10), and even an Oxberry animation camera > (basically a 35mm movie camera). > > The Polaroid backs were single-frame only, but the SLR had a motor > drive, so you could expose an entire roll of film sequentially. The > movie camera, of course, also had motorized film advance.
Thanks John, very interesting. I've clearly got lots to learn about these. Malcolm -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
