no.25 Gamma Set

from €15.00

The no.25 is a black and white panchromatic specialty film, yielding medium to high contrast, very fine grain, high resolution and high sharpness. The emulsion has a pull/push capability - from ISO6 to ISO80.

This film was originally used for production of technical drawings and orthographic projection.

Set:

Set of 2 Set of 4 Set of 10

Quantity:

Add To Cart

Each roll has 20 exposures

ISO 25
Low grain versatile film
Push capabilities to ISO 80
Pull capabilities to ISO 6
Fresh film stock
The film is rolled into recycled film canisters
It is recommended to use manual film advancing cameras with recycled canisters

TECHNICAL DATA

Physical properties:
The silver halide emulsion type is coated on a polyester PET 13 base with a base thickness of 0.130 mm The film thickness is 0.135 mm (before processing).
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Processing:
The experimental no.25 film can be processed in all types of processing equipment including spiral tanks, dishes/trays, rotary processors, deep tanks and automatic processors. This film is very robust. It can handle less than ideal processing conditions and will not contaminate the processing chemistry. This film must be loaded/handled in complete darkness due to panchromatic emulsion sensitivity to all the visible light spectrum. If processed in a development tank maually,, it is recommended to agitate the film for 5 seconds every 30 seconds of development. The development time must be decreased/increased by 15% each stop of pull/push processing of this film.