Shooting color film with your rangefinder or TLR?
Warming or cooling filters?
It’s seldom I shoot color, but when I do, I usually shoot with warming filter.
Most commonly used are; 81A, 81B or 81C, but there’s also 81D and 81EF
81A wams 200 degree of Kelvin, 81B warms 400 and so on.
81A or 81B balances the coolness in cloudy weather, anything stronger than 81B or C will cause a yellow cast
82 series cools by 200 Kelvin each
The higher Kelvin temperature, the cooler, or more blueish the light is, the lower Kelvin temperature, the warmer the light is.
Studio strobes, flashes: 5000 to 5600 K - the diffusers tends to warm the light by 200 to 500K.
If the diffuser is not enough, use 81A or B filter.
Daylight average 5400-5600K
Sunrise 2000-3000K, overcast 6500-7000K
Daylight film is calibrated to 5600K
Kelvin over 5000K are called cool colors, and white lower temperatures 2700- 3000K are called warm colors. (yellowish white through red)
81 series warms 200 degrees Kelvin each
81a = 200
81b = 400
81c = 600
81d = 800
81ef = 1,000
82 series cools by 200 K each
Go out there and shoot some color fillm!