Polaroid Polapan PN Type 55 is an ISO 80, medium contrast, fine grain 4 in. x 5 in. film that produces both high quality black and white prints and negatives. The negatives capture a wide tonal range and can produce beautifully suitable images on conventional printing papers.
Key applications include professional photography proofing, portraits, and when ever you want a large format negative.
Mixing directions from Polaroid for clearing
Polaroid Type 55 and 665 films:
To clear the negative for reuse, immerse it in a sodium sulfite clearing
bath immediately after development. Sodium sulfite powder is readily
available from professional photographic supply dealers and chemical
supply houses.
Mix in the following proportions:
Warm water: 2 liter or 70 fl. oz.
Sodium sulfite powder: 440 grams or 16 oz. (weight)
(anhydrous/desiccated)
Slowly add the powder to the water; stir continuously until all
powder is dissolved. Allow to cool to approximately 700F(210C)
before using. Store the solution in brown, well-stoppered
bottles or in a tank with a floating lid.
To prevent scratches:
Negative scratch resistance can be improved by treating the
processed negative (after clearing in water and sodium sulfite)
in a solution of Kodak Rapid Fix with Hardener (parts A & B)
for two minutes. This solution should be made up and used in
accordance with Kodak’s recommended mix procedures,
chemical caution statements, wash times and temperatures.
Click here to download the Data Sheet in PDF format for
Polaroid Type 55 film
