Watson/Hacker exposure meter
Help!! I just acquired a used exposure meter, and am puzzled as to how
to correctly use it. The meter was made in England, and is labeled William J. Hacker & Co., West Caldwell, NJ, and is a Watson... It has a large analog meter face, with stepped sensitivity control, and a slide rule type exposure calculator. The puzzling part is the section of the scale that must be set underneath the paper/film speed mantissa. It reads "setting factor", and is incrementally divided 1-12. What is this setting factor, and how is it determined? Does anyone have any experience with this meter, and even better yet, have a manual that could be copied? I have run every search engine I could find, and nothing at all turns up on this meter. Any help is appreciated. Patrick |
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