Ilford 1743399 Manual Do Utilizador

 

 

 TECHNICAL INFORMATION  

ISO 100/21º, FINE GRAIN, BLACK AND WHITE PROFESSIONAL FILM 

FOR SUPERB PRINT QUALITY 

 

 

ILFORD 100 DELTA PROFESSIONAL is a medium 

speed, fine grain, black and white film, ideal for 

pictorial and fine art photography. 

 

100 DELTA Professional 35mm film is coated on 

Sensitivity

 

0.125mm/5-mil acetate base and is available in 

24 or 36 exposure cassettes, or in bulk lengths of 

30.5 metres (100ft). 100 DELTA Professional 

35mm film is supplied in DX coded cassettes, 

suitable for all 35mm cameras. 

 

100 DELTA Professional rollfilm is coated on 

0.110mm/4-mil clear acetate base with an anti- 

Wavelength nm 

halation backing which clears during 

 

development. It is available in 120 lengths and is 

edge numbered 1 to 19. 

100 DELTA Professional film may be used with all 

types of filters (eg colour, polarising and neutral 

density filters) in the usual way. Follow the 

instructions given by the filter manufacturer. 

 

100 DELTA Professional sheet film is coated on 

0.180mm/7-mil polyester base with an anti- 

halation backing which clears during 

 

development. It is available in a wide range of 

The exposure increase in daylight may vary with the 

angle of the sun and the time of day. In the late 

afternoon or the winter months, when daylight 

contains more red light, green and blue filters may 

need slightly more exposure than usual. 

standard sizes. The emulsion faces the user when 

sheet film is held in the position shown. 

 

 

 

 

Cameras with through-the-lens metering will usually 

adjust the exposure automatically when using 

filters. With some automatic exposure cameras, 

the correction given for deep red and orange 

filters can produce negatives under exposed by as 

much as 1

1/2 

stops. 

 

 

100 DELTA 

Professional 

has a speed rating of ISO 

100/21

º 

(100ASA, 21DIN, EI 100/21) to daylight. 

Best results are obtained at EI 100/21, but good 

image quality will also be obtained at meter settings 

from EI 50/18 to EI 200/24. 

 

t should be noted that the exposure index (EI) range 

recommended for 100 DELTA 

Professional 

is based 

on a practical evaluation of film speed and is not 

based on foot speed, as is the ISO standard. 

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