Film Types

Type Sensitivity Speed Processing Base Backing ASA
2479 Extended Red Pan 500 Negative 4 mil Estar-AH Fast Drying (PX) 320 in D76
2490 Blue 64 Negative 4 mil Estar Dyed Gel
2492 Ortho 160 Negative 4 mil Estar Clear Gel
2494 Extended Blue 50 Negative 4 mil Estar-AH Fast Drying (PX)
2495 Ortho 320 Negative 4 mil Estar-AH Fast Drying (PX)
2496 Extended Red Pan 125 Negative 4 mil Estar-AH Fast Drying(PX) 80 in D76
2497 Extended Blue 50 Negative 4 mil Estar Dyed Gel
2498 Panchromatic 320 Reversal 4 mil Estar-AH Fast Drying (PX) 250 Negative, 250 in D19
3493 Extended Blue 50 Negative 2.5mil Estar Clear
5498 Panchromatic 250 Negative 5.25 Mil Triacetate Static Resistant 250 in D19, 250 Reversal

This information comes from data sheets dated 1980 and 1976.

Other info

RAR stands for Rapid-access Recording. There were (are) a wide range of films for high speed photography, oscilloscopes recording etc.

The description of 2496 is: Kodak 2496 RAR film (estar-AH base) is a member of the Kodak family of RAR films designed especially for rapid-access recording and high temperature (up to 130 deg F) processing.

USES:

2498 had the following uses:

Source: Brian Pritchard