Black and White Filter Guide
 
 
 
Color Temperature of light sources

Filter Exposure Factor

Black and White Contrast control Filters

Conversion filters for color films

Light balancing filters

Neutral Density filters

Ultraviolet- Absorbing Filters

Infrared transmitting Filters

Color compensating filters

Safelight filters

Contrast Control-Printing Filters

Color Printing Filters

  Filter Exposure Factor

Because filters absorb light, an adjustment to exposure must be made by increasing exposure time when using external hand meter. SLR cameras measure exposure through the lens and any required correction is done automatically. Correction for polarizing filters is depended on the situation and the quantity of polarized light.
 

Filter Factor 
1,2
1,5
2
2,5
3
4
6
8
10
12
40
Lens Aperture 
1/3
1
11/4
11/2
2
21/2
3
3 1/3
3 1/3
5 1/3
 






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