Polaroid type 55

The Polaroid Type 55 is a produced by the Polaroid Corporation to 2008 Black and White instant film format 4X5 inches. It provides directly both a positive and a negative.

General

The plan type 55 film ( officially Polapan Pro 55 ) was prepared and distributed by the year 2008 by the American company Polaroid. Since production in 2008 has been set, are today only remnants on the market that are increasingly difficult to obtain.

When photographer he is before all things popular for its excellent detail drawing, resulting from the very low film speed fine grain, and not least because of the characteristic, from image to image different edge.

This rim is formed around the actual image, where the positive and the negative layer, which are pulled apart directly after exposure, are glued together. Actually, this should be pruned at the closing date, but what many photographers refrain from intentionally to give her paintings a more graphical component. For these reasons, many well-known photographers such as eg used it Ansel Adams.

Occasionally we may also use a photo editing program digitally added to this effect to a photo.

Technology

The Type 55 was in large format 4 x 5 inch size and has a sensitivity of ISO 50 The size of the field (without the above edge ) is 9 x 11.4 cm. The resulting positive must be painted immediately after recording, while the negative needed for output to film needs to be clarified in sodium sulfide solution.

Both positive and negative are extremely vulnerable to scratches due to the very soft in comparison with other films emulsion.

Future

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