In films from 1950 on, the first two digits (the prefix) of the four-digit emulsion number identify the gauge and base of film: A "T" suffix designates a tungsten (3200K) balanced negative and a "D" suffix designates a daylight (5600K) negative. The number preceding this is the film's exposure index as determined by Kodak (it is
not ISO speed).
Early nitrate films (1916–1941) Black-and-White (1954–1967) • Eastman Tri-X panchromatic Negative film 5233 320D/250T introduced in 1954 • Plus-X reversal film 7276 50D/40T introduced in 1955 • Tri-X reversal film 7278 200D/160T introduced in 1955 • Plus-X Panchromatic Negative film 5231/7231 80D/64T introduced in 1956 (discontinued in 2010) • Double-X 5222/7222 250D/200T introduced in 1959 • Plus-X reversal 7265 (16 mm & 8 mm) 100D/80T • Tri-X reversal 7266 (16 mm & 8 mm) 200D/160T • Eastman 4-X negative Pan film 5224/7224 500D/400T introduced in 1964 (discontinued in 1990) • Kodak 4-X reversal film 7277 400D/320T introduced in 1967 discontinued in 1990 • Kodak Tri-X TV reversal film 7727, TVTX, no longer identified by EKC • Eastman Background-X Negative Film 5230, ISO 32 (discontinued) • Eastman XT Panchromatic Negative Film 5220, 25D/20T, 1964–1970, replacing Background-X
Fine grain color negative films (1950–1968) • Eastman Color Negative film 5247 16D introduced in 1950 (discontinued in 1952) • Eastman Color Negative film 5248 25T introduced in 1952 (discontinued in 1959) • Eastman Color Negative film 5250 50T introduced in 1959 (discontinued in 1962) • Eastman Color Negative film 5251 50T introduced in 1962 (discontinued in 1968) • Eastman Color Negative film 5254/7254 100T introduced in 1968 (discontinued March, 1977)
Eastman Color Negative II (ECN-2 process 1974–1976) • 5247 100T Process ECN-2 introduced in 1974 (discontinued in 1976), it has sharper/finer grain compared to its predecessor 5254 • 5247/7247 100T (updated) introduced in 1976 (discontinued March, 1983)
Video News Film 16 mm (VNF-1)(1976–1981) • Eastman
Ektachrome Video News Film 7239 (VNF) 160D, introduced in 1976. Replaced 7241. • Eastman Ektachrome Video News Film 7240 125T, introduced in 1976. Replaced 7242. • Eastman Ektachrome High-Speed Video News Film 7250 400T, introduced in 1977. • Eastman Ektachrome High-Speed Daylight Film 7251 400D, introduced in 1981.
Kodachrome color reversal film • Kodachrome 16 mm introduced in 1935 • Kodachrome 35 mm (
135) & 8 mm introduced in 1936 (discontinued in 2009) • 5262 (16 mm) introduced in 1938 (discontinued in 1946) • 5265 (16 mm) introduced in 1940 (discontinued in 1950) • 5267 (35 mm) introduced in 1942 • 5268 (16 mm) introduced in 1946 (discontinued in 1958) • 5269 (16 mm) introduced in 1950 • 7267 25D (16 mm & 8 mm) (discontinued) • 7270 40T (16 mm & 8 mm) (discontinued)
Ektachrome color reversal film (E1–E6 and related processes) • 5239/7239 (reversal) 160D • 5240/7240 (16 mm & 8 mm) (reversal) 125T • 5285/7285 100D (reversal) introduced in 1999 (discontinued in 2012) • 7241 160D, introduced 1966, replaced 7257 • 7242 125T, introduced 1966, replaced 7258 • 7250 High Speed 400T • 7251 High Speed 400D introduced in 1981 • 7252 25T introduced in 1970 (discontinued in 1984) • 7255 introduced in 1958 (discontinued in 1970, replaced by 7252) • 5256/7256 64D, 1963–1984 • 7257 160D, introduced 1959 • 7258 125T, introduced 1959 • 7280 (8 mm) 64T (discontinued in 2010) • Ektachrome (Type A) 160T (super 8 mm) introduced in 1971 • Ektachrome SM 7244 (super 8 mm)(reversal) introduced in 1975 • 7294 100D (Super-8, 16mm) introduced in 2018, reformulated version of 5285/7285 100D
Eastmancolor Negative (1982–1986) • 7291 100T introduced in 1983 (discontinued in 1989) • 7292 320T introduced in 1986 (discontinued in 1992) (First partial "
T-Grain" stock) • 5293/7293 250T introduced in 1982 (discontinued 1983) • 5294/7294 400T (35 mm)/320T (16 mm) introduced in 1983, discontinued in 1986 • 5295 400T introduced in 1986 • 5297/7297 HS Day 250D introduced in 1986 (discontinued in 1997)
EXR color negative (ECN-2 process 1989–1996) • 5245/7245 EXR 50D introduced in 1989 (discontinued in 2006) • 5248/7248 EXR 100T introduced in 1989 (discontinued in 2005) • 5287/7287 EXR 200T introduced in 1996 (discontinued in 1996) • 5293/7293 EXR 200T introduced in 1992 (discontinued in 2004) • 5296/7296 EXR 500T introduced in 1989 (discontinued in 1995) • 5298/7298 EXR 500T introduced in 1994 (discontinued in 2003)
Vision color negative (ECN-2 process 1996–2002) • 5246/7246 Vision 250D introduced in 1997 (discontinued in 2005) • 5263/7263 Vision 500T introduced in 2002 (discontinued in 2003) • 5274/7274 Vision 200T introduced in 1997 (discontinued in 2006) • 5277/7277 Vision 320T introduced in 1996 (discontinued in 2005) • 5279/7279 Vision 500T introduced in 1996 (discontinued in 2006) • 5284/7284 Vision 500T "Expression" introduced in 2001 (discontinued in 2003) • 5289 Vision 800T introduced in 1998 (discontinued in 2004) • 7289 Vision 800T (16 mm) introduced in 1999 (discontinued in 2004)
Vision2 color negative (ECN-2 process 2002–2007) • 5201/7201 Vision2 50D introduced in 2005. discontinued in 2012. • 5205/7205 Vision2 250D introduced in 2004. discontinued in 2009. • 5212/7212 Vision2 100T introduced in 2004. discontinued in 2010. • 5217/7217 (35, 16, & 8 mm) Vision2 200T introduced in 2004. discontinued in 2010. • 5218/7218 (35, 16, & 8 mm) Vision2 500T introduced in 2002. discontinued in 2009. • 5229/7229 Vision2 "Expression" 500T introduced in 2003. discontinued in 2011. • 5260 Vision2 500T introduced in 2009 (35 mm only). discontinued in 2011. • 5299/7299 Vision2 "HD Color Scan film" 500T introduced in 2005. discontinued in 2009.
Vision3 color negative (ECN-2 process 2007–present) • 5219/7219 Vision3 500T introduced in 2007. SO-219 is ESTAR-base variant. • 5207/7207 Vision3 250D introduced in 2009. • 5213/7213 (35, 16, & 8 mm) Vision3 200T introduced in 2010. • 5203/7203 Vision3 50D introduced in 2011.
Print films (1941–present) Lab films Other • 5600 Primetime EXR 640T Teleproduction Film introduced in 1995 (discontinued) • 5620/7620 Primetime 640T introduced in 1997 (discontinued) • SFX 200T Color Negative Film (35 mm only) introduced in 1998. Special-order film intended for special effects. (discontinued in 2004) • 5230/7230 500T Color Negative Film introduced in 2011 (discontinued in 2012) • Verita 200D 5206/7206 Color Negative Film introduced in 2026 • Ektagraphic High Contrast Slide (HCS) orthochromatic negative film for making reverse-text title slides etc. • Fine Grain Release Positive, blue-sensitive negative film specially for motion film duplication • Rapid Process Copy (RPC) ultra-slow duplicating film with a blue-tinted base == FilmoTec ==