Black-and-white negative · Black & white
Ilford Delta 3200
Ilford's very fast film for the darkest scenes.
Ilford Delta 3200 printed on Kodak 2302: a very fast black-and-white film in low light. Original vs Ashigrain.
At a glance
- Exposure index
- 3200
- Introduced
- 1998
- In production
- Process
- ILFORD ILFOTEC DD-X 1+4, spiral tank, 20 C, intermittent agitation
About the film
Ilford Delta 3200 Professional is a high-speed panchromatic black-and-white negative designed for EI 3200 with extended development.
Ilford dates it to 1998: the company's own timeline says Delta 3200 joined the range that year, after the first Delta film and 100 Delta. The earliest dated sheet found, of September 2002, was published by Ilford Imaging UK at Town Lane, Mobberley. Ilford's timeline says a management buy-out in 2005 formed HARMAN technology Limited, which trades as Ilford Photo in Mobberley, Cheshire. HARMAN technology publishes the current sheet, dated November 2018, and recommends the film for difficult exposing conditions, action and available light. Ilford gives EI 3200 as its meter setting, with good results from EI 400 to 6400, best from 1600 to 6400, and up to EI 25000 after test exposures. It is coated on acetate base in both 135 and 120, and Ilford recommends its Ilfotec DD-X, Microphen and ID-11 developers.
Sources for this history
- ILFORD PHOTO History, HARMAN technology Limited
- ILFORD DELTA 3200 PROFESSIONAL fact sheet (September 2002), ILFORD Imaging UK Limited
- ILFORD DELTA 3200 PROFESSIONAL technical information (November 2018), HARMAN technology Limited
The look
Ilford Delta 3200 Professional is a very fast panchromatic black-and-white negative designed for EI 3200 with extended development, for action and available light in difficult conditions. It prints on Kodak B&W Print Film 2302 by default, or on a colour print film for a near-neutral image with the print's own tint.






Best for
- Concerts and stage in available light
- Night street photography
- Indoor sport without flash
Compare camera films
Science & sources


A very fast panchromatic black-and-white negative rated at EI 3200 with extended development; its ISO speed is 1000. Its curves and spectral sensitivity are digitised from Ilford's 2002 sheet; the spectral shape is relative, read from a spectrogram made with 2850 K tungsten light, and the EI 800 and EI 6400 settings use the sheet's 7 and 12 minute DD-X curves. Ilford prints no MTF or granularity, so its sharpness and grain are proxied from Kodak T-Max P3200. It prints on Kodak B&W Print Film 2302 by default.
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). Where the datasheet gives a single grain value, the response away from that point is an approximation.
| Channel | Density | Datasheet-based σD | Model σD |
|---|---|---|---|
| N | 0.3 | 0.010896 | 0.010673 |
| N | 0.6 | 0.015414 | 0.015099 |
| N | 1 | 0.019901 | 0.019495 |
| N | 1.5 | 0.024375 | 0.023877 |
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 a daylight ISO speed but no colour balance. Daylight calibration and spectrally neutral silver density are assumptions.
- The curves use a relative log exposure axis with an arbitrary origin. EI 3200 is a practical rating rather than the ISO speed (ISO 1000 in ID-11), and its normal-exposure point is assumed.
- The spectral sensitivity is the envelope of a wedge spectrogram made with 2850 K tungsten light, used relative to its own printed scale. The spectrogram-to-sensitivity conversion is not printed, and the 2850 K light is not divided out.
- Neither edition prints an MTF or granularity. Both are proxied from Kodak T-Max P3200, the Kodak black-and-white negative rated for EI 3200, so the sharpness and granularity shown are that film's, not measurements of Delta 3200. That film's own grain is modelled from a single RMS granularity value.
- The EI 800 and EI 6400 settings use the chart's 7 and 12 minute DD-X curves, against the table's 7 and 12½ minutes; beyond them a generic push applies.
- The 2002 sheet corrects reciprocity above ½ s and the 2018 sheet above 1 s; the model follows the 2018 threshold.
- Neither edition names an antihalation layer; an undercoat is assumed, and the single-layer halation response is not measured.
- 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.
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
- Exposure index: ILFORD DELTA 3200 PROFESSIONAL fact sheet, September 2002, p. 1
- Characteristic curves 9min: ILFORD DELTA 3200 PROFESSIONAL fact sheet, September 2002, p. 6