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Black-and-white negative · Black & white

Agfa Agfapan APX 100

Fine detail from Agfa's original APX 100.

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Planned media

Agfa Agfapan APX 100 printed on Kodak B&W Print Film 2302. Original vs Ashigrain.

Agfa Agfapan APX 100, Kodak B&W Print Film 2302

stock
Agfa Agfapan APX 100
mode
Print
film_format
35mm still (135)
print_film
Kodak B&W Print Film 2302
Exposure index
100
Introduced
by 1998
Discontinued
Process
Agfa REFINAL, 6 min, 20 C
Prints on
2302
Kodak B&W Print Film 2302

About the film

Agfapan APX 100 was an ISO 100 panchromatic film in Agfa's original professional black-and-white negative range.

Agfa's dated September 1998 guide establishes that this product existed by then, without dating its launch. The guide presents APX 25, APX 100 and APX 400 together, with processing and exposure-index guidance for the range. Its APX 100 table lists a 7 µm emulsion, format-specific support thicknesses and an RMS granularity value measured after REFINAL development. In April 2007 photoscala described APX 100 and APX 400 as remaining stocks from former Agfa production and reported distribution of original stock under the Rollei Retro name. That distribution history does not establish that later APX-branded films use the same emulsion. It was documented by Agfa-Gevaert AG and is discontinued, but the sources read do not establish a stock-specific final production year.

Sources for this history
  1. Agfa Professional Films, Technical Data PF, Agfa-Gevaert AG
  2. Agfa-Filme: Das derzeitige Sortiment, photoscala (mts)

The look

Agfa Agfapan APX 100 is the original ISO 100 panchromatic black-and-white negative documented by Agfa in 1998. Its curve's REFINAL development attribution is assumed, and grain is borrowed from Kodak T-Max 100 because the printed RMS convention is unresolved. It prints on Kodak 2302 by default.

Agfa Agfapan APX 100 sample frame: OriginalAgfa Agfapan APX 100 sample frame: Ashigrain
Agfa Agfapan APX 100 sample frame: OriginalAgfa Agfapan APX 100 sample frame: Ashigrain
Agfa Agfapan APX 100 sample frame: OriginalAgfa Agfapan APX 100 sample frame: Ashigrain

Best for

  1. Daylight black-and-white photographs
  2. Fine-detail subjects at ISO 100
  3. Exploring the original Agfa APX emulsion

Compare camera films

FilmSpeedGrain, RMS σD · lower means finer grainYears made
CinefotocolorCinefotocolor−3⅔ stops vs Agfa Agfapan APX 100 · grain coarserEI 8−3⅔ stops.0191948
GasparcolorGasparcolor−3 stops vs Agfa Agfapan APX 100 · grain coarserEI 12−3 stops.0181932
Ansco Color Negative 843Ansco Color Negative 843−2⅔ stops vs Agfa Agfapan APX 100 · grain finerEI 16−2⅔ stops.0041951
Gevacolor Negative T 6.51Gevacolor Negative T 6.51−2⅔ stops vs Agfa Agfapan APX 100 · grain the sameEI 16−2⅔ stops.0071951
Technicolor Process IITechnicolor Process II−2⅔ stops vs Agfa Agfapan APX 100 · grain coarserEI 16−2⅔ stops.0191922
Trucolor (two-colour)Trucolor (two-colour)−2⅔ stops vs Agfa Agfapan APX 100 · grain coarserEI 16−2⅔ stops.0191945
ORWOCOLOR UK 14ORWOCOLOR UK 14−2⅓ stops vs Agfa Agfapan APX 100 · grain coarserEI 20−2⅓ stops.0111964
Kodak Kodachrome 25Kodak Kodachrome 25−2 stops vs Agfa Agfapan APX 100 · grain coarserEI 25−2 stops.0141974
Agfacolor Typ 432Agfacolor Typ 432−1⅔ stops vs Agfa Agfapan APX 100 · grain the sameEI 32−1⅔ stops.0071962
Svema DS-5MSvema DS-5M−1⅓ stops vs Agfa Agfapan APX 100 · grain finerEI 40−1⅓ stops.0051979
Kodak Aerochrome III 1443Kodak Aerochrome III 1443−1⅓ stops vs Agfa Agfapan APX 100 · grain coarserEI 40−1⅓ stops.0292001
Kodak Vision3 50DKodak Vision3 50DMade since 2011, in production · −1 stop vs Agfa Agfapan APX 100 · grain finerEI 50−1 stop.0042011–
Fujifilm Velvia 50Fujifilm Velvia 50Made since 2007, in production · −1 stop vs Agfa Agfapan APX 100 · grain coarserEI 50−1 stop.0112007–
Agfa Agfacolor Ultra 50Agfa Agfacolor Ultra 50−1 stop vs Agfa Agfapan APX 100 · grain finerEI 50−1 stop.0041995
Agfa Agfachrome RSX II 50Agfa Agfachrome RSX II 50−1 stop vs Agfa Agfapan APX 100 · grain coarserEI 50−1 stop.0111998
Konica Impresa 50Konica Impresa 50−1 stop vs Agfa Agfapan APX 100 · grain finerEI 50−1 stop.0051998
DufaycolorDufaycolor−1 stop vs Agfa Agfapan APX 100 · grain coarserEI 50−1 stop.0121935
Fujifilm Fujichrome 64T Type IIFujifilm Fujichrome 64T Type II−⅔ stop vs Agfa Agfapan APX 100 · grain coarserEI 64−⅔ stop.0132002
Kodak Kodachrome 64Kodak Kodachrome 64Made 1974–2009 · −⅔ stop vs Agfa Agfapan APX 100 · grain coarserEI 64−⅔ stop.0161974–2009
ORWOCOLOR NC 3ORWOCOLOR NC 3−⅔ stop vs Agfa Agfapan APX 100 · grain the sameEI 64−⅔ stop.0071972
Polaroid Type 669Polaroid Type 669−⅓ stop vs Agfa Agfapan APX 100 · grain coarserEI 80−⅓ stop.0231981
Ilford Ortho PlusIlford Ortho PlusMade since 1997, in production · −⅓ stop vs Agfa Agfapan APX 100 · grain coarserEI 80−⅓ stop.0131997–
Svema LN-9Svema LN-9same speed vs Agfa Agfapan APX 100 · grain the sameEI 95same speed.0071988
Kodak Ektar 100Kodak Ektar 100Made since 2008, in production · same speed vs Agfa Agfapan APX 100 · grain finerEI 100same speed.0052008–
Kodak Ektachrome 100DKodak Ektachrome 100DMade since 2018, in production · same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0132018–
Lucky Super GBR 100Lucky Super GBR 100same speed vs Agfa Agfapan APX 100 · grain finerEI 100same speed.0052001
Ferrania Solaris FG Plus 100Ferrania Solaris FG Plus 100same speed vs Agfa Agfapan APX 100 · grain finerEI 100same speed.0052002
Fujifilm Astia 100FFujifilm Astia 100FMade 2003–2012 · same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0112003–12
Fujifilm Velvia 100Fujifilm Velvia 100Made since 2003, in production · same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0112003–
Kodak Ektachrome E100SKodak Ektachrome E100Ssame speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0151996
Agfa Agfacolor Optima II 100Agfa Agfacolor Optima II 100same speed vs Agfa Agfapan APX 100 · grain finerEI 100same speed.0051998
Agfa Agfachrome RSX II 100Agfa Agfachrome RSX II 100same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0111998
Kodak Ektachrome E100VSKodak Ektachrome E100VSsame speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0171998
Fujifilm Provia 100FFujifilm Provia 100FMade since 2000, in production · same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0102000–
Gevacolor 682Gevacolor 682same speed vs Agfa Agfapan APX 100 · grain finerEI 100same speed.0061979
Kodak Ektachrome 100 Plus (EPP)Kodak Ektachrome 100 Plus (EPP)same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0181988
Fujifilm FP-100CFujifilm FP-100CMade 1992–2016 · same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0221992–2016
Lomography Redscale XR 50-200Lomography Redscale XR 50-200same speed vs Agfa Agfapan APX 100 · grain finerEI 100same speed.0052025
Fomapan R 100Fomapan R 100Made since 1980, in production · same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0211980–
Tasma NK-2Tasma NK-2same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0121980
Kodak T-Max 100Kodak T-Max 100Made since 1986, in production · same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0081986–
Ilford Delta 100Ilford Delta 100Made since 1992, in production · same speed vs Agfa Agfapan APX 100 · grain the sameEI 100same speed.0071992–
Agfa Agfapan APX 100Agfa Agfapan APX 100this filmEI 100this film.0071998
Fomapan 100 ClassicFomapan 100 ClassicMade since 2016, in production · same speed vs Agfa Agfapan APX 100 · grain coarserEI 100same speed.0122016–
Eastman Color Negative 5247Eastman Color Negative 5247+⅓ stop vs Agfa Agfapan APX 100 · grain finerEI 125+⅓ stop.0051983
Kodak Technical PanKodak Technical Pan+⅓ stop vs Agfa Agfapan APX 100 · grain coarserEI 125+⅓ stop.0081977
Kodak Portra 160Kodak Portra 160Made since 2011, in production · +⅔ stop vs Agfa Agfapan APX 100 · grain finerEI 160+⅔ stop.0062011–
Agfa Agfacolor Portrait XPS 160Agfa Agfacolor Portrait XPS 160+⅔ stop vs Agfa Agfapan APX 100 · grain finerEI 160+⅔ stop.0061995
Kodak Vision3 200TKodak Vision3 200TMade since 2010, in production · +1 stop vs Agfa Agfapan APX 100 · grain finerEI 200+1 stop.0062010–
Kodak Verita 200DKodak Verita 200DMade since 2026, in production · +1 stop vs Agfa Agfapan APX 100 · grain finerEI 200+1 stop.0062026–
Fujifilm C200Fujifilm C200+1 stop vs Agfa Agfapan APX 100 · grain finerEI 200+1 stop.0052017
Kodak Gold 200Kodak Gold 200Made since 2007, in production · +1 stop vs Agfa Agfapan APX 100 · grain coarserEI 200+1 stop.0082007–
Lucky Super GBR 200Lucky Super GBR 200+1 stop vs Agfa Agfapan APX 100 · grain the sameEI 200+1 stop.0072001
Ferrania Solaris FG Plus 200Ferrania Solaris FG Plus 200+1 stop vs Agfa Agfapan APX 100 · grain finerEI 200+1 stop.0052002
Kodak Ektachrome E200Kodak Ektachrome E200+1 stop vs Agfa Agfapan APX 100 · grain coarserEI 200+1 stop.0181997
Agfa Agfachrome RSX II 200Agfa Agfachrome RSX II 200+1 stop vs Agfa Agfapan APX 100 · grain coarserEI 200+1 stop.0141998
Kodak Kodachrome 200Kodak Kodachrome 200+1 stop vs Agfa Agfapan APX 100 · grain coarserEI 200+1 stop.0271986
Harman Phoenix 200Harman Phoenix 200+1 stop vs Agfa Agfapan APX 100 · grain the sameEI 200+1 stop.0072023
Kodak Tri-X Reversal 7266Kodak Tri-X Reversal 7266Made since 2003, in production · +1 stop vs Agfa Agfapan APX 100 · grain coarserEI 200+1 stop.0242003–
Kodak Vision3 250DKodak Vision3 250DMade since 2009, in production · +1⅓ stops vs Agfa Agfapan APX 100 · grain finerEI 250+1⅓ stops.0062009–
Fujifilm Eterna 250Fujifilm Eterna 250+1⅓ stops vs Agfa Agfapan APX 100 · grain finerEI 250+1⅓ stops.0052006
Fujifilm Eterna 250DFujifilm Eterna 250DMade 2005–2013 · +1⅓ stops vs Agfa Agfapan APX 100 · grain finerEI 250+1⅓ stops.0052005–13
Kodak Vision 250DKodak Vision 250DMade 1997–2005 · +1⅓ stops vs Agfa Agfapan APX 100 · grain the sameEI 250+1⅓ stops.0071997–2005
Kodak Aerocolor IV 2460Kodak Aerocolor IV 2460Made since 2009, in production · +1⅓ stops vs Agfa Agfapan APX 100 · grain coarserEI 250+1⅓ stops.0132009–
Eastman Double-X 5222Eastman Double-X 5222Made since 1960, in production · +1⅓ stops vs Agfa Agfapan APX 100 · grain coarserEI 250+1⅓ stops.0131960–
ORWO Wolfen NC400ORWO Wolfen NC400+2 stops vs Agfa Agfapan APX 100 · grain finerEI 400+2 stops.0052022
Kodak Portra 400Kodak Portra 400Made since 2010, in production · +2 stops vs Agfa Agfapan APX 100 · grain the sameEI 400+2 stops.0072010–
ORWO Wolfen NC500ORWO Wolfen NC500+2 stops vs Agfa Agfapan APX 100 · grain finerEI 400+2 stops.0062022
Fujifilm Provia 400FFujifilm Provia 400F+2 stops vs Agfa Agfapan APX 100 · grain coarserEI 400+2 stops.0172000
Ferrania Solaris FG Plus 400Ferrania Solaris FG Plus 400+2 stops vs Agfa Agfapan APX 100 · grain finerEI 400+2 stops.0062004
Fujifilm Pro 400HFujifilm Pro 400HMade 2004–2021 · +2 stops vs Agfa Agfapan APX 100 · grain finerEI 400+2 stops.0052004–21
Kodak Ektachrome 400XKodak Ektachrome 400X+2 stops vs Agfa Agfapan APX 100 · grain coarserEI 400+2 stops.0371992
Fujifilm Superia X-TRA 400Fujifilm Superia X-TRA 400+2 stops vs Agfa Agfapan APX 100 · grain finerEI 400+2 stops.0052006
LomoChrome Color '92 Sun-kissedLomoChrome Color '92 Sun-kissed+2 stops vs Agfa Agfapan APX 100 · grain finerEI 400+2 stops.0052024
Kodak Tri-X 400Kodak Tri-X 400Made since 1954, in production · +2 stops vs Agfa Agfapan APX 100 · grain coarserEI 400+2 stops.0171954–
Kodak T-Max 400Kodak T-Max 400Made since 2007, in production · +2 stops vs Agfa Agfapan APX 100 · grain coarserEI 400+2 stops.0102007–
Ilford HP5 PlusIlford HP5 PlusMade since 1989, in production · +2 stops vs Agfa Agfapan APX 100 · grain coarserEI 400+2 stops.0161989–
Ilford Delta 400Ilford Delta 400Made since 2002, in production · +2 stops vs Agfa Agfapan APX 100 · grain coarserEI 400+2 stops.0102002–
Kodak Vision3 500TKodak Vision3 500TMade since 2007, in production · +2⅓ stops vs Agfa Agfapan APX 100 · grain the sameEI 500+2⅓ stops.0072007–
Kodak 500T 5230Kodak 500T 5230+2⅓ stops vs Agfa Agfapan APX 100 · grain coarserEI 500+2⅓ stops.0092011
Fujifilm Eterna Vivid 500Fujifilm Eterna Vivid 500Made 2009–2013 · +2⅓ stops vs Agfa Agfapan APX 100 · grain finerEI 500+2⅓ stops.0052009–13
Kodak Vision2 500TKodak Vision2 500T+2⅓ stops vs Agfa Agfapan APX 100 · grain coarserEI 500+2⅓ stops.0092009
Fujicolor Reala 500DFujicolor Reala 500D+2⅓ stops vs Agfa Agfapan APX 100 · grain finerEI 500+2⅓ stops.0052001
Kodak Vision2 Expression 500TKodak Vision2 Expression 500T+2⅓ stops vs Agfa Agfapan APX 100 · grain coarserEI 500+2⅓ stops.0092003
Fujifilm Eterna 500Fujifilm Eterna 500Made 2004–2013 · +2⅓ stops vs Agfa Agfapan APX 100 · grain finerEI 500+2⅓ stops.0052004–13
Anscochrome D/500Anscochrome D/500+2⅓ stops vs Agfa Agfapan APX 100 · grain coarserEI 500+2⅓ stops.0381967
Eastman EXR 500TEastman EXR 500TMade 1989–1995 · +2⅓ stops vs Agfa Agfapan APX 100 · grain coarserEI 500+2⅓ stops.0081989–95
Kodak Portra 800Kodak Portra 800Made since 2000, in production · +3 stops vs Agfa Agfapan APX 100 · grain coarserEI 800+3 stops.0092000–
Ferrania Solaris FG Plus 800Ferrania Solaris FG Plus 800+3 stops vs Agfa Agfapan APX 100 · grain the sameEI 800+3 stops.0072004
Kodak Vision 800TKodak Vision 800T+3 stops vs Agfa Agfapan APX 100 · grain coarserEI 800+3 stops.0101998
Konica Centuria Super 1600Konica Centuria Super 1600+4 stops vs Agfa Agfapan APX 100 · grain the sameEI 1600+4 stops.0072002
Kodak Ektachrome P1600Kodak Ektachrome P1600+4 stops vs Agfa Agfapan APX 100 · grain coarserEI 1600+4 stops.0501999
Kodak T-Max P3200Kodak T-Max P3200Made since 1988, in production · +5 stops vs Agfa Agfapan APX 100 · grain coarserEI 3200+5 stops.0181988–
Ilford Delta 3200Ilford Delta 3200Made since 1998, in production · +5 stops vs Agfa Agfapan APX 100 · grain coarserEI 3200+5 stops.0191998–

Science & sources

Agfa Agfapan APX 100 calibration chart: OriginalAgfa Agfapan APX 100 calibration chart: Processed
Synthetic test chart (skin tones, Munsell greys, colour bars, tone and hue ramps, step wedge, memory-colour roll-off, halation star) before and after the full Ashigrain pipeline: print branch on Kodak B&W Print Film 2302, Super 35 4-perf, default controls, exposure +0.55 stops to match the original's mid-grey, frame 0.

The characteristic curve comes from Agfa's September 1998 guide; REFINAL, 6 minutes at 20 °C, is assumed from its grain-measurement conditions rather than printed on the curve. A visual MTF curve supplies sharpness, with modelled adjacency. Grain uses Kodak T-Max 100 as a proxy because APX 100's RMS 9.0 headline leaves gross versus net density unresolved.

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

Density against log H (lux-seconds) for channels N. R circles, G squares, B triangles, N diamonds; filled markers and solid lines are digitised, open markers and dashed lines are simulated: digitised and simulated.−4.0−3.0−2.0−1.00.01.02.0log H (lux-seconds)0.01.02.03.0Density

RMS granularity

RMS granularity (σD) against Density for channels N. R circles, G squares, B triangles, N diamonds; filled markers and solid lines are datasheet-based, open markers and dashed lines are simulated: datasheet-based and simulated.0.00.51.01.52.0Density0.00.0020.0040.0060.0080.01RMS granularity (σD)

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.

ChannelDensityDatasheet-based σDModel σD
N0.30.003630.003579
N0.60.0051350.005063
N10.0066310.006538
N1.50.0081220.008007
N20.0093790.009246

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.
  • The source gives no colour balance. Daylight calibration and spectrally neutral silver density are assumptions.
  • The characteristic chart names no developer. REFINAL, 6 minutes at 20 °C, is assumed from the separate RMS measurement condition, not documented for the curve itself.
  • The guide's general exposure and densitometry reference concerns colour films. Daylight exposure and diffuse-visual densitometry for this black-and-white curve are assumptions.
  • The guide prints RMS granularity 9.0 but does not say whether density 1.0 is gross or net. The grain curve is proxied from Kodak T-Max 100, not calibrated to the APX headline.
  • The physical silver-clump diameter is assumed to be 4.5 µm from the speed class; it is not measured by the RMS granularity value.
  • The printed sharpness chart is a single visual MTF curve for the silver image, not measurements of separate colour layers.
  • The printed MTF rises above 100 %, which the model renders as a development adjacency effect. Its width, amplitude and dependence on density and development are not published and are approximated.
  • The adjacency fit uses two parameters per layer and cannot follow every printed MTF sample. Its dependence on local density differences is also assumed.
  • The processed sensitivity grid ends at 660 nm, and the printed curve leaves the frame at about 662 nm. Sensitivity beyond that range is not extrapolated.
  • The gamma-time curve and other development guidance are recorded only, not calibrated EI push sets. Push and pull use a generic model.
  • No APX 100 antihalation layer or base material is named by the guide. An undercoat class is inferred, but no film-specific halation response is measured.
  • The sheet prints reciprocity corrections at a few exposure times; the correction between them is interpolated.
  • Agfa's exposure corrections are modelled, but the paired development-time reductions of 10 %, 25 % and 35 % at 1 s, 10 s and 100 s are not.
  • Only one edition is used, with no independent digitisation-error estimate.
  • Characteristic response outside the published exposure range is an extrapolation, not measured film data.
  • In the print branch it prints on Kodak B&W Print Film 2302 by default. Black-and-white print timing is modelled.
  • 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 100 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

  1. Characteristic curves: Agfa Professional Films, Technical Data PF, Technical Data PF, 09/1998, 1st edition, p. 10
  2. Diffuse RMS granularity: Agfa Professional Films, Technical Data PF, Technical Data PF, 09/1998, 1st edition, p. 10
  3. Exposure index: Agfa Professional Films, Technical Data PF, Technical Data PF, 09/1998, 1st edition, p. 10
  4. Process: Agfa Professional Films, Technical Data PF, Technical Data PF, 09/1998, 1st edition, p. 10

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