AshigrainColour reversal · 1990s
Kodak Ektachrome E100S
Neutral daylight slides with stronger colour.
Kodak Ektachrome E100S in Reversal mode. Original vs Ashigrain.
At a glance
- Exposure index
- 100
- Daylight
- Introduced
- by 1996
- Discontinued
- Process
- E-6
- Prints on
- Reversal, viewed directly
About the film
Kodak Professional Ektachrome E100S is a daylight-balanced ISO 100 colour transparency film for E-6 processing.
It existed by June 1996, when David Gallant reviewed it alongside E100SW in Photon. Kodak distinguished the neutral-colour E100S from the warmer E100SW and described the S version as offering enhanced saturation. The maker listed advertising, product, fashion, industrial and nature photography among its applications. Gallant compared the two films with Fuji Provia and Agfa RSX 100 in studio and location work and reported neutral results for E100S. Kodak documented T-Grain emulsions and new spectral-sensitising dyes, with acetate roll supports and an ESTAR option in its format table. Its June 2003 sheet announced that E100G and E100GX would replace E100S and E100SW as stocks turned over. E100S is discontinued, but that replacement notice does not establish its final coating or sale year.
Sources for this history
- KODAK PROFESSIONAL EKTACHROME Films E100S and E100SW Technical Data, Eastman Kodak Company
- Kodak's New Ektachromes, Photon / Icon Publications (David Gallant)
The look
Kodak Ektachrome E100S is a daylight-balanced ISO 100 slide film, the neutral-colour partner to the warmer E100SW. Kodak aimed its enhanced saturation at advertising, fashion, products and nature. Ashigrain uses Reversal mode by default and models grain from E100S's own RMS 10 headline.
Best for
- Daylight product and advertising photographs
- Fashion with neutral colour balance
- Nature and wildlife slides
Compare camera films
FilmSpeedGrain, RMS σD · lower means finer grainYears made
Ansco Color Negative 843Ansco Color Negative 843−2⅔ stops vs Kodak Ektachrome E100S · grain finerEI 16−2⅔ stops.0041951
Gevacolor Negative T 6.51Gevacolor Negative T 6.51−2⅔ stops vs Kodak Ektachrome E100S · grain finerEI 16−2⅔ stops.0071951
Technicolor Process IITechnicolor Process II−2⅔ stops vs Kodak Ektachrome E100S · grain coarserEI 16−2⅔ stops.0191922
Trucolor (two-colour)Trucolor (two-colour)−2⅔ stops vs Kodak Ektachrome E100S · grain coarserEI 16−2⅔ stops.0191945
ORWOCOLOR UK 14ORWOCOLOR UK 14−2⅓ stops vs Kodak Ektachrome E100S · grain finerEI 20−2⅓ stops.0111964
Kodak Kodachrome 25Kodak Kodachrome 25−2 stops vs Kodak Ektachrome E100S · grain finerEI 25−2 stops.0141974
Agfacolor Typ 432Agfacolor Typ 432−1⅔ stops vs Kodak Ektachrome E100S · grain finerEI 32−1⅔ stops.0071962
Kodak Aerochrome III 1443Kodak Aerochrome III 1443−1⅓ stops vs Kodak Ektachrome E100S · grain coarserEI 40−1⅓ stops.0292001
Kodak Vision3 50DKodak Vision3 50DMade since 2011, in production · −1 stop vs Kodak Ektachrome E100S · grain finerEI 50−1 stop.0042011–
Fujifilm Velvia 50Fujifilm Velvia 50Made since 2007, in production · −1 stop vs Kodak Ektachrome E100S · grain finerEI 50−1 stop.0112007–
Agfa Agfacolor Ultra 50Agfa Agfacolor Ultra 50−1 stop vs Kodak Ektachrome E100S · grain finerEI 50−1 stop.0041995
Agfa Agfachrome RSX II 50Agfa Agfachrome RSX II 50−1 stop vs Kodak Ektachrome E100S · grain finerEI 50−1 stop.0111998
Konica Impresa 50Konica Impresa 50−1 stop vs Kodak Ektachrome E100S · grain finerEI 50−1 stop.0051998
Fujifilm Fujichrome 64T Type IIFujifilm Fujichrome 64T Type II−⅔ stop vs Kodak Ektachrome E100S · grain finerEI 64−⅔ stop.0132002
Kodak Kodachrome 64Kodak Kodachrome 64Made 1974–2009 · −⅔ stop vs Kodak Ektachrome E100S · grain coarserEI 64−⅔ stop.0161974–2009
Polaroid Type 669Polaroid Type 669−⅓ stop vs Kodak Ektachrome E100S · grain coarserEI 80−⅓ stop.0231981
Ilford Ortho PlusIlford Ortho PlusMade since 1997, in production · −⅓ stop vs Kodak Ektachrome E100S · grain finerEI 80−⅓ stop.0131997–
Kodak Ektar 100Kodak Ektar 100Made since 2008, in production · same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0052008–
Kodak Ektachrome 100DKodak Ektachrome 100DMade since 2018, in production · same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0132018–
Lucky Super GBR 100Lucky Super GBR 100same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0052001
Ferrania Solaris FG Plus 100Ferrania Solaris FG Plus 100same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0052002
Fujifilm Astia 100FFujifilm Astia 100FMade 2003–2012 · same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0112003–12
Fujifilm Velvia 100Fujifilm Velvia 100Made since 2003, in production · same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0112003–
Agfa Agfacolor Optima II 100Agfa Agfacolor Optima II 100same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0051998
Agfa Agfachrome RSX II 100Agfa Agfachrome RSX II 100same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0111998
Kodak Ektachrome E100VSKodak Ektachrome E100VSsame speed vs Kodak Ektachrome E100S · grain coarserEI 100same speed.0171998
Fujifilm Provia 100FFujifilm Provia 100FMade since 2000, in production · same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0102000–
Gevacolor 682Gevacolor 682same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0061979
Kodak Ektachrome 100 Plus (EPP)Kodak Ektachrome 100 Plus (EPP)same speed vs Kodak Ektachrome E100S · grain coarserEI 100same speed.0181988
Fujifilm FP-100CFujifilm FP-100CMade 1992–2016 · same speed vs Kodak Ektachrome E100S · grain coarserEI 100same speed.0221992–2016
Lomography Redscale XR 50-200Lomography Redscale XR 50-200same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0052025
Fomapan R 100Fomapan R 100Made since 1980, in production · same speed vs Kodak Ektachrome E100S · grain coarserEI 100same speed.0211980–
Kodak T-Max 100Kodak T-Max 100Made since 1986, in production · same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0081986–
Ilford Delta 100Ilford Delta 100Made since 1992, in production · same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0071992–
Agfa Agfapan APX 100Agfa Agfapan APX 100same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0071998
Fomapan 100 ClassicFomapan 100 ClassicMade since 2016, in production · same speed vs Kodak Ektachrome E100S · grain finerEI 100same speed.0122016–
Eastman Color Negative 5247Eastman Color Negative 5247+⅓ stop vs Kodak Ektachrome E100S · grain finerEI 125+⅓ stop.0051983
Kodak Technical PanKodak Technical Pan+⅓ stop vs Kodak Ektachrome E100S · grain finerEI 125+⅓ stop.0081977
Kodak Portra 160Kodak Portra 160Made since 2011, in production · +⅔ stop vs Kodak Ektachrome E100S · grain finerEI 160+⅔ stop.0062011–
Agfa Agfacolor Portrait XPS 160Agfa Agfacolor Portrait XPS 160+⅔ stop vs Kodak Ektachrome E100S · grain finerEI 160+⅔ stop.0061995
Kodak Vision3 200TKodak Vision3 200TMade since 2010, in production · +1 stop vs Kodak Ektachrome E100S · grain finerEI 200+1 stop.0062010–
Kodak Verita 200DKodak Verita 200DMade since 2026, in production · +1 stop vs Kodak Ektachrome E100S · grain finerEI 200+1 stop.0062026–
Kodak Gold 200Kodak Gold 200Made since 2007, in production · +1 stop vs Kodak Ektachrome E100S · grain finerEI 200+1 stop.0082007–
Lucky Super GBR 200Lucky Super GBR 200+1 stop vs Kodak Ektachrome E100S · grain finerEI 200+1 stop.0072001
Ferrania Solaris FG Plus 200Ferrania Solaris FG Plus 200+1 stop vs Kodak Ektachrome E100S · grain finerEI 200+1 stop.0052002
Kodak Ektachrome E200Kodak Ektachrome E200+1 stop vs Kodak Ektachrome E100S · grain coarserEI 200+1 stop.0181997
Agfa Agfachrome RSX II 200Agfa Agfachrome RSX II 200+1 stop vs Kodak Ektachrome E100S · grain finerEI 200+1 stop.0141998
Kodak Kodachrome 200Kodak Kodachrome 200+1 stop vs Kodak Ektachrome E100S · grain coarserEI 200+1 stop.0271986
Harman Phoenix 200Harman Phoenix 200+1 stop vs Kodak Ektachrome E100S · grain finerEI 200+1 stop.0072023
Kodak Tri-X Reversal 7266Kodak Tri-X Reversal 7266Made since 2003, in production · +1 stop vs Kodak Ektachrome E100S · grain coarserEI 200+1 stop.0242003–
Kodak Vision3 250DKodak Vision3 250DMade since 2009, in production · +1⅓ stops vs Kodak Ektachrome E100S · grain finerEI 250+1⅓ stops.0062009–
Fujifilm Eterna 250Fujifilm Eterna 250+1⅓ stops vs Kodak Ektachrome E100S · grain finerEI 250+1⅓ stops.0052006
Fujifilm Eterna 250DFujifilm Eterna 250DMade 2005–2013 · +1⅓ stops vs Kodak Ektachrome E100S · grain finerEI 250+1⅓ stops.0052005–13
Kodak Vision 250DKodak Vision 250DMade 1997–2005 · +1⅓ stops vs Kodak Ektachrome E100S · grain finerEI 250+1⅓ stops.0071997–2005
Kodak Aerocolor IV 2460Kodak Aerocolor IV 2460Made since 2009, in production · +1⅓ stops vs Kodak Ektachrome E100S · grain finerEI 250+1⅓ stops.0132009–
Eastman Double-X 5222Eastman Double-X 5222Made since 1960, in production · +1⅓ stops vs Kodak Ektachrome E100S · grain finerEI 250+1⅓ stops.0131960–
ORWO Wolfen NC400ORWO Wolfen NC400+2 stops vs Kodak Ektachrome E100S · grain finerEI 400+2 stops.0052022
Kodak Portra 400Kodak Portra 400Made since 2010, in production · +2 stops vs Kodak Ektachrome E100S · grain finerEI 400+2 stops.0072010–
ORWO Wolfen NC500ORWO Wolfen NC500+2 stops vs Kodak Ektachrome E100S · grain finerEI 400+2 stops.0062022
Fujifilm Provia 400FFujifilm Provia 400F+2 stops vs Kodak Ektachrome E100S · grain coarserEI 400+2 stops.0172000
Ferrania Solaris FG Plus 400Ferrania Solaris FG Plus 400+2 stops vs Kodak Ektachrome E100S · grain finerEI 400+2 stops.0062004
Fujifilm Pro 400HFujifilm Pro 400HMade 2004–2021 · +2 stops vs Kodak Ektachrome E100S · grain finerEI 400+2 stops.0052004–21
Kodak Ektachrome 400XKodak Ektachrome 400X+2 stops vs Kodak Ektachrome E100S · grain coarserEI 400+2 stops.0371992
Fujifilm Superia X-TRA 400Fujifilm Superia X-TRA 400+2 stops vs Kodak Ektachrome E100S · grain finerEI 400+2 stops.0052006
LomoChrome Color '92 Sun-kissedLomoChrome Color '92 Sun-kissed+2 stops vs Kodak Ektachrome E100S · grain finerEI 400+2 stops.0052024
Kodak Tri-X 400Kodak Tri-X 400Made since 1954, in production · +2 stops vs Kodak Ektachrome E100S · grain coarserEI 400+2 stops.0171954–
Kodak T-Max 400Kodak T-Max 400Made since 2007, in production · +2 stops vs Kodak Ektachrome E100S · grain finerEI 400+2 stops.0102007–
Ilford HP5 PlusIlford HP5 PlusMade since 1989, in production · +2 stops vs Kodak Ektachrome E100S · grain coarserEI 400+2 stops.0161989–
Ilford Delta 400Ilford Delta 400Made since 2002, in production · +2 stops vs Kodak Ektachrome E100S · grain finerEI 400+2 stops.0102002–
Kodak Vision3 500TKodak Vision3 500TMade since 2007, in production · +2⅓ stops vs Kodak Ektachrome E100S · grain finerEI 500+2⅓ stops.0072007–
Kodak 500T 5230Kodak 500T 5230+2⅓ stops vs Kodak Ektachrome E100S · grain finerEI 500+2⅓ stops.0092011
Fujifilm Eterna Vivid 500Fujifilm Eterna Vivid 500Made 2009–2013 · +2⅓ stops vs Kodak Ektachrome E100S · grain finerEI 500+2⅓ stops.0052009–13
Kodak Vision2 500TKodak Vision2 500T+2⅓ stops vs Kodak Ektachrome E100S · grain finerEI 500+2⅓ stops.0092009
Fujicolor Reala 500DFujicolor Reala 500D+2⅓ stops vs Kodak Ektachrome E100S · grain finerEI 500+2⅓ stops.0052001
Kodak Vision2 Expression 500TKodak Vision2 Expression 500T+2⅓ stops vs Kodak Ektachrome E100S · grain finerEI 500+2⅓ stops.0092003
Fujifilm Eterna 500Fujifilm Eterna 500Made 2004–2013 · +2⅓ stops vs Kodak Ektachrome E100S · grain finerEI 500+2⅓ stops.0052004–13
Anscochrome D/500Anscochrome D/500+2⅓ stops vs Kodak Ektachrome E100S · grain coarserEI 500+2⅓ stops.0381967
Eastman EXR 500TEastman EXR 500TMade 1989–1995 · +2⅓ stops vs Kodak Ektachrome E100S · grain finerEI 500+2⅓ stops.0081989–95
Kodak Portra 800Kodak Portra 800Made since 2000, in production · +3 stops vs Kodak Ektachrome E100S · grain finerEI 800+3 stops.0092000–
Ferrania Solaris FG Plus 800Ferrania Solaris FG Plus 800+3 stops vs Kodak Ektachrome E100S · grain finerEI 800+3 stops.0072004
Kodak Vision 800TKodak Vision 800T+3 stops vs Kodak Ektachrome E100S · grain finerEI 800+3 stops.0101998
Konica Centuria Super 1600Konica Centuria Super 1600+4 stops vs Kodak Ektachrome E100S · grain finerEI 1600+4 stops.0072002
Kodak Ektachrome P1600Kodak Ektachrome P1600+4 stops vs Kodak Ektachrome E100S · grain coarserEI 1600+4 stops.0501999
Kodak T-Max P3200Kodak T-Max P3200Made since 1988, in production · +5 stops vs Kodak Ektachrome E100S · grain coarserEI 3200+5 stops.0181988–
Ilford Delta 3200Ilford Delta 3200Made since 1998, in production · +5 stops vs Kodak Ektachrome E100S · grain coarserEI 3200+5 stops.0191998–
Science & sources
The E100S tone curves come from Kodak's June 2003 E-164 sheet; that sheet shares its spectral, dye and MTF charts with E100SW. E100SW's separate tone curve is not included. Grain uses E100S's own gross-density RMS 10 headline, while push processing remains generic despite the published EI 160 and EI 320 guidance.
Response curves and the evidence behind the model
Compare manufacturer data with Ashigrain’s response on the same axes. These curves show how the model is calibrated to its sources; they do not establish a match to photographed film.
Characteristic response
RMS granularity
Density variation (σD) measured through a 48 µm aperture. Where the datasheet gives a single grain value, the response away from that point is an approximation.
| Channel | Density | Datasheet-based σD | Model σD |
|---|---|---|---|
| R | 0.3 | 0.006795 | 0.006698 |
| G | 0.3 | 0.004556 | 0.004446 |
| B | 0.3 | 0.006758 | 0.006649 |
| R | 0.6 | 0.013442 | 0.013252 |
| G | 0.6 | 0.009193 | 0.008969 |
| B | 0.6 | 0.016806 | 0.016536 |
| R | 1 | 0.020188 | 0.019902 |
| G | 1 | 0.015111 | 0.014744 |
| B | 1 | 0.028772 | 0.028309 |
| R | 1.5 | 0.030121 | 0.029695 |
| G | 1.5 | 0.023621 | 0.023047 |
| B | 1.5 | 0.044528 | 0.043812 |
| R | 2 | 0.034492 | 0.034005 |
| G | 2 | 0.031785 | 0.031012 |
| B | 2 | 0.06518 | 0.064132 |
Model limits
These images show the film model in use. Spectral response, lighting and viewing conditions include approximations. Halation, bloom, grain size, weave and flicker are not fully measured for each film. The look of real film also depends on development and print timing.
- Custom lighting spectra, camera metering and the spectral reflectance inferred from fixed-white-balance footage are assumptions used by the model, not measurements of this film.
- Conversion-filter spectra (80A for daylight films under tungsten, 85 for tungsten films in daylight) come from separate measured filter data, not from this film’s source. Applying those filters to this film remains modelled.
- The only grain datum is RMS granularity 10 × 10⁻³ at gross diffuse visual density 1.0, measured with a 48 µm aperture. Conversion to net density and extension with a square-root density law are modelled.
- The printed EI 160 and EI 320 push guidance supplies no pushed curves. Push and pull use a generic model.
- Only the E100S characteristic curves are modelled. E100SW has a separate tone curve, although the sheet shares its spectral, dye and MTF charts between both films.
- Only one edition is available in the research set, so there is no independent edition cross-check.
- The sheet prints reciprocity corrections at a few exposure times; the correction between them is interpolated, and the colour-compensating filter it prescribes is taken at its nominal value.
- The physical dye-cloud or grain-clump size is inferred from the film's speed class, not measured for this film.
- Individual dye amounts, layer interactions and push/pull behaviour are approximated where the datasheet provides no calibration. Grain size is assumed; published RMS granularity does not specify dye-cloud size.
- The source names no antihalation layer; an undercoat is inferred rather than documented.
- Characteristic response outside the published exposure range is an extrapolation, not measured film data.
- Halation strength, radius and layer weights are not quantified by the datasheet. The effect of removing antihalation and the bloom response are also approximations.
- The available sources do not measure veiling flare during projection. The model approximates its contribution to lifted blacks on screen, so the result is not a measured projection contrast.
Reciprocity: modelled from 1/10000 s to 120 s, following the datasheet's corrections for long and short exposures. Exposure time stops at the ends of that range.
Film guide: assumptions and practical choices
Sources
- Exposure index: KODAK PROFESSIONAL EKTACHROME Films E100S and E100SW Technical Data, E-164, June 2003, p. 2
- Process: KODAK PROFESSIONAL EKTACHROME Films E100S and E100SW Technical Data, E-164, June 2003, p. 3
- Characteristic curves: KODAK PROFESSIONAL EKTACHROME Films E100S and E100SW Technical Data, E-164, June 2003, p. 5
- Diffuse RMS granularity: KODAK PROFESSIONAL EKTACHROME Films E100S and E100SW Technical Data, E-164, June 2003, p. 5