Warm filter

A warm filter is a Photographic filter.

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Improves color of all skintones; absorbs blue cast often caused by electronic flash or outdoor shade. Adds warmth to pale, washed-out flesh tones. Ideal for portraits. Smooths facial details while adding warmth to skin tones (for color imaging).
In general, they suppress blue casts on overcast days and on subjects lit by blue sky.

Some warm filter manufacturers:
Hoya
Cokin
Tiffen

See also

• Filter (photography)
• UV Filter
• Polarizer
• Infrared filter
• Neutral density filter
• Filter factor