Originally Posted by
Jay De Fehr
I have never used a strip-reading, or scanning densitometer, but I definitely like the idea. I do my film testing by exposing a test film in contact with a stepwedge in a sensitometer. A scanning densitometer would read the entire resulting stepwedge in a single pass, instead of my having to read and record each individual step separately, which provides two opportunities for error with every step read and recorded. Unless I'm misunderstanding the way a scanning densitometer works, which is certainly possible, it seems like a much better way to measure a stepwedge than the alternative of a spot-reading densitometer.
Jorge,
have you used a scanning densitometer? If so, am I correct in assuming it reads the entire stepwedge in a single pass? If that's true, what is the downside, other than the limitations of the size of film it can scan, which is no limitation at all, as far as I'm concerned, if it can scan up to 4x5. What am I missing?
Jay
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