Kodak TXR-464 Tri-X Reversal Black & White, Silent Super 8 Movie Film, 50 Foot Cartridge, Film #7266, ISO 200 / 160, #502-9046, *USA* As with the Plus-X above, there is a slight difference in ASA based upon the type of lighting - without the filter Daylight ASA is 200, Tungsten ASA is 160. Daylight ASA with the filter is 125. NOTE: When used in bright sunlight, care must be taken to avoid overexposing this film due to high speed.