Ilford HP5+
Development times
Open in the calculator ›Development times by developer
27 developers
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Character
Link to this page
Specification
- BaseFilm base The clear, flexible support that carries the emulsion. Read more in the glossary ›
- Acetate
- EmulsionEmulsion The light-sensitive layer of a film: tiny crystals of silver halide held in gelatin. Read more in the glossary ›
- Cubic
- Spectral sensitivitySpectral sensitivity Which colours of light a film responds to, and how strongly. Read more in the glossary ›
-
Panchromatic — what this means
Sensitive to the whole visible spectrum, so colours turn into greys roughly the way the eye weighs them. This is what almost every general-purpose black and white film is. It has to be loaded and developed in complete darkness — no safelight is safe for it.
- Grain (RMS)Grain The visible, sand-like texture in a photograph that comes from the clumps of silver or dye that form the image. Read more in the glossary ›
- —
- Resolving power line pairs / mm
- —
- Maximum densityDensity How much light a negative, transparency or print blocks. Read more in the glossary ›
- —
- Latitude overExposure latitude How far a film can be over- or underexposed and still give a usable result. Read more in the glossary ›
- —
- Latitude under
- —
- First released
- 1989
A dash means the figure has not been read off a datasheet. Nothing here is estimated.
Long exposures
Reciprocity
| Metered | Expose |
|---|---|
| 1 s | 1 s |
| 2 s | 2.5 s |
| 5 s | 8.2 s |
| 10 s | 20 s |
| 30 s | 1 min 26 s |
| 1 min 00 s | 3 min 33 s |
| 2 min 00 s | 8 min 49 s |
| 5 min 00 s | 29 min 18 s |
Tc = Tm^P for metered times over 1 s; 1 s or less needs no correction (P = 1.31)
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Written by photographers, under their own profile — so you can see what they shoot before you weigh what they say.
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Notes on how this behaves in practice — what it does in the field is worth as much as what the datasheet says.
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