Operation of filters

Light filters

Up to max. 3 light filters can be inserted in the filter holder (1.16). They can be switched in and out the light path as required.

Filter

Use

 

 

Grey filter

Grey filters (neutral density filters) are used to

 

attenuate the light without influencing the

 

colour temperature. The engraved value, e. g.

 

N16, indicates the attentuation value. So N16

 

means reduction to 1/16 = 6.3 % transmission.

Green filter, panchromatic

for general enhancement of contrast in black-

 

and-white photography.

DLF

Conversion filter for colour photography with

 

daylight film.

ALF

Enhances contrast for colour photography with

 

artificial light film.

VG9 (green filter )

Contrast enhancement for chromosome photo-

 

graphy.

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Leica DM IRB manual Operation of filters, Light filters