81 series pale amber filters are designed to "warm" photos by reducing excess blue. They are rated in strength on the Kelvin colour temperature scale and require minor exposure adjustment. 81EF converts light from 3850°K to 3200°K; +2/3 stop.
Bargain Deal: £54.99
These ND filters reduce light transmission uniformly over the visible region of the spectrum, in definitive steps. They are used mainly in colour photography...
COK YELLOW X001
Pale amber filter for fine adjustment.
Lee Red 40 Resin Colour Correction Filter.
Coral Filters can be used as general warm-up filters, or provide special effects. The Lee Coral Filter is a pinkish warm-up filter, redder than the 81...