Marc Roessler Posted August 19, 2014 Share Posted August 19, 2014 I just bought a 1970s made Minolta Color Meter off ebay (the one with the two rotating scales). It’s a beauty.Does anybody have more detailed info on those? I found a manual as PDF but it’s not very service-centric. There are 11 (!) little trimpots under a service opening at the back, plus two or three more behind the silicon diode PCB. Tracing some of the wires I have an idea about the functions of 3 or 4 or the trimpots, but especially how the cyan/magenta balance is setup is still quite unclear to me.Any input is very much welcome. Kind regards, Marc Link to comment Share on other sites More sharing options...
Jerry Murrel Posted August 20, 2014 Share Posted August 20, 2014 I don't have the information Marc is requesting, but I am wondering if the time has now come for camera manufactures to start designing an board tool in digital cameras to determine color temperatures on set. Not sure how white balance circuitry achieves it's purpose, but it seems that it wouldn't be too difficult to design a smarter circuit in camera that measures color temperature of light falling on objects displayed in viewfinder. A untethered probe could be built which would allow the DP or AC to take these measurements in hand-held fashion. The signal could be sent wirelessly from the probe to the camera for the on-board circuitry to analyze. Does this sound feasible to those of you who are reading this and have some knowledge of digital camera design? -Jerry Murrel Little Rock, AR Link to comment Share on other sites More sharing options...
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