I have a recently acquired a Kodak Retinette 1B Rangefinder camera which is in reasonably good condition and certainly usable but it has one issue though. The selenium light meter reads too bright and indicates a bit more than 2 stops of change for each stop in actual illumination change. There is an adjustable resistor under the top cover which I have tried adjusting. It does move the needle position, but not enough and the other issue remains as well. Can anyone advise me of the possible cause and / or solution? Thanks.