Filters

This refers to colored disks of glass or gelatine which are placed in front of the camera lens to improve the quality of pictures

Homogenous mediums which absorb different wavelengths of electromagnetic energy

These are dyed gelatine sheets cemented between carefully selected glass

Uses of Filter (It can be used in two ways)

Uses of Filter (When it is placed over a lens, it does two things)

What are the Photographic Filters

This refers to photographic filters that are used effectively when photographing blood..

When used outdoors, a blue
filter will make the sky, or any blue object, appear white in the photograph

This refers to photographic filters that are used in place of blue filters for photographing blood. Often, they work better than blue filters.

This refers to photographic filters that are used to photograph white cars; the details of the car will stand out

It is use for white automobile to enhance the color.

This refers to photographic filters that is used to screens out the violet end of the spectrum.

It is placed in front of a
lens and left there; it will not only improve most of the police photographer’s work, it will also prevent the lens from
being scratched.

Attached on the camera lens to prevent lens from being scratched

This refers to photographic filters that are used to cut down light transmission

They are also used to reduce the light intensity to prevent over exposure

Reduces the light transmission to prevent over exposure

This refers to photographic a filter that is used primarily to control light reflected from highly polished surfaces, metallic objects and others

It is very useful in photographing many different vehicles in auto accidents. This is the only
filter that can increase the blue saturation in the sky in a color photograph without altering the remaining colors in the
scene.

It is use for highly polish auto mobile

This refers to photographic filters that are used to remove excess bluishness from distant view outdoors

It is use for outdoors

This refers to photographic filters that are intended to alter the response to the spectral sensitivity in terms of the
naked eye

This refers to the ratio of the time exposure with or without filter.

Filter factors depends upon the: