Nicholas Rapak

Last year, I was able to exchange old 35mm slide film mailers for new film. I called 1-800-242-2424 extension 19.

I sent a roll of double 8mm film to Pac Lab in NYC to process my film after calling them to ask whether they can process double 8mm film. After being assured they could process it, I got my film sent back developed, but not slit. Do you know of anywhere that can just slit the 16mm wide film on short notice?

www.filmemporium.com

All exposure adjustments on the M4 are done in front of the CdS cell in the lower right-hand corner. There are two things that adjust the amount of light entering the cell: A small ND filter graduated from : 1 1/3 stop to 2 stop, and a metal shade that reduces the light an additional 2/3 stop to compensate for the 85 filter. When 100D is put into the M4, the ND filter is removed but the metal shade is not, metering for 64 with no filter. Inserting the key removes the shade without adding a filter, metering for 100.

The M4 will read 40T/25D and 100T/64D. The Kodak 100D as notched will be metered at 64 without an 85 filter. If you put the tungsten key in the top, it will move a small piece of metal from the meter, metering it at 100.

The only place to get 8mm film is from John Schwind at International Film: http://zerelda.com/internationalfilm/internationalfilm.html Everywhere else (including Spectra and Yale) just buys film from him and re-sells it at a higher price. He sells two black-and-white stocks and one color. Both Spectra and Yale process the film, but Yale is cheaper, and in my opinion, has better quality.

There is a person over at the Analog Photography Users Group (APUG), a still film forum, that was once a film engineer for Kodak. He once explained the technical advantages to a neg/pos (and repeat) system, as opposed to a pos/pos. One of the things that I remember was that he said that negatives hold far more information than a positive. I am not exactly sure why, but it is.