Physics:Warm filter
From HandWiki
A warm filter is a photographic filter that improves the color of all skin tones and absorbs blue cast often caused by electronic flash or outdoor shade.[1] They add warmth to pale, washed-out flesh tones and are ideal for portraits as they smooth facial details while adding warmth to skin tones (for color imaging).[2] In general, they suppress blue casts on overcast days and on subjects lit by blue sky.[3]
See also
- Filter factor
 - Infrared filter
 - Neutral-density filter
 - Polarizer
 - UV filter
 
References
- ↑ "The 3 Best Lens Filters for Landscape Photography". photographymad. https://www.photographymad.com/pages/view/the-3-best-lens-filters-for-landscape-photography.
 - ↑ Mansurov, Nasim (July 29, 2021). "What you need to know about lens filters and how they work". photographylife. https://photographylife.com/lens-filters-explained.
 - ↑ Weitz, Allan (March 2021). "A Guide to Filters for Lenses". B&H Photo·Video·Audio. https://www.bhphotovideo.com/explora/photography/buying-guide/a-guide-to-filters-for-lenses.
 

