Red and Blue

by Gordon

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Interpolate the R and B numbers logarithmically. We perceive light intensity that way, not linearly. For example, the same scene taken at a sequence of decreasing f-stops with everything else held constant yields a sequence of pictures that look successively lighter, with each step feeling roughly constant. However, the actual amount of light will go in a ...


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Pretty much any lens can focus at infinity, so I think to make sense, the question must mean maximum distance so that the image of subject is a usable size instead of a dot. Which is going to be hard for anyone else to judge, but a Field Of View Calculator should answer for individual purposes. See http://www.scantips.com/lights/fieldofview.html The Field ...


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That is just Field of View, see http://www.scantips.com/lights/fieldofview.html For a calculator, and if you know trig tangent, the diagram at page bottom will explain how.


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Frankly, this does not sound practical or usable, but to do it, you can take a picture with your camera of each of Daylight and Shade WB, and then in manufacturers section of the EXIF, see like: WB_RB Levels: 1.82421875 1.5234375 1 1, which are the multipliers used for R, B, G, G. Each pixel of course. But WB settings (daylight, shade, etc) merely tell ...


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"EV increases as ISO increases. This does not make sense to me..." Let's put this in plain English: Higher ISO film is more sensitive to light. In digitalese, a higher ISO setting makes the sensor more sensitive. If you are not careful you can overexpose your shots easily. "A high Exposure Value(EV)" means that the film will appear to have been dosed with ...



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