Tasma OCh-45 16mm B&W Reversal Film, 2 x 30 m (expired 1981)

Tasma OCh-45 16mm B&W Reversal Film - Lot of 2 Sealed Boxes, 30 m each

Two sealed boxes of Soviet Tasma OCh-45 - a black and white reversal 16mm cine film from the Kazan Tasma plant, rated GOST 45 (about ISO 50), 30 metres (approx. 100 ft) per box. Both boxes are new old stock from 1980-81: process-before dates April and August 1981 printed on the labels. This is expired film sold for experiments: expect reduced speed and some base fog, as with any 45-year-old stock. Reversal process - shoot it, develop it and project it, or scan it as a positive.

Technical Details

• Film: Tasma OCh-45 (ОЧ-45), black and white reversal cine film, "Type L" (типа Л)
• Format: 16 mm, 30 m (approx. 100 ft) per box
• Speed: GOST 45 (approx. ISO 50 / 18 DIN)
• Manufacturer: Tasma, Kazan, USSR; boxes carry the USSR State Quality Mark
• Box 1: emulsion no. 39714, process before April 1981, first development 8 min
• Box 2: emulsion no. 39874, process before August 1981, first development 6 min
• Printed on the boxes: "open and process in total darkness"
• Weight of the lot: approx. 213 g

What's Included

• 2 x sealed boxes of Tasma OCh-45 16mm reversal film, 30 m each

Condition

New old stock, expired. Two factory-sealed boxes, never opened; the cardboard shows light shelf wear and faint age marks (see photos). Process-before dates April 1981 and August 1981. Stored dry at room temperature, not refrigerated. Sensitivity and fog level are untested - 45-year-old film is sold as-is for experimental use with no guarantee of results. Perforation type is not visible without opening the boxes.

Processing Note

OCh-45 is a reversal (positive) film. Process it as B&W reversal, or as a negative in a standard B&W developer and scan it. For expired stock add exposure and test a short strip first.