Adox D-76 - Info about the black and white developer (2024)

FAQs

What are the chemical components of the D-76 developer? ›

KODAK Developer D-76 provides full emulsion speed and excellent shadow detail with normal contrast, and produces fine grain with a variety of continuous-tone black-and-white films. For greater sharpness, but with a slight increase in graininess, you can use a 1:1 dilution of this developer.

At stock concentration, D76 can be reused. If diluted at 1:1, 1:3 or 1:5, it is cannot be reused. The general rule is that you add 10% to the development time per reuse. This can technically go on until the shelf life of 6 months runs out.

The most consistent method with D-76 is to use it one-shot at 1:1 dilution. Prepare the stock solution per the package instructions. When you develop your film, make a working solution with 1 part water and 1 part stock solution, develop, and discard.

For black-and-white photography, three main components of this mixture are: Developing agents. Popular developing agents are metol (monomethyl-p-aminophenol hemisulfate), phenidone (1-phenyl-3-pyrazolidinone), dimezone (4,4-dimethyl-1-phenylpyrazolidin-3-one) and hydroquinone (benzene-1,4-diol).

You can reuse stock solution several times, but keep in mind that it gets weaker each time you use it as well as declining over time from oxidation. If you dilute the stock solution, it typically is not reused. This is called one shot development.

D76h contains Hydroquinone, according to Eastman Kodak Research publications. H76 is not eally more stable than D76, the instability of D76 is really due to bromide build up when it's replenished. Like D23 the downside is both give lower contrast results, compared to D76, so aren't so good when lighting is flatter.

The average development time is 1 hour. It can also vary depending on the background temperature but one hour usually should be enough.

Again keep the air out of the mix developer and you should be good for 6-12 months.

Are D-76 and ID11 the same? ›

The main differences between the commercially sold D-76 compared to ID-11 is that it comes packaged as a single-mix instead of two-parts and IMO is easier to mix to a stock solution. In the case of ID-11 it's quite probable that the Borax has been increased by 50% over the published formula.

I would go with 13 minutes if you are intent on using the 1:1 dilution. HP5 and ID11/D76 is a long-time favourite of mine. I always rate HP5 at 200, and use a 1:2 dilution for film taken in sunny or fairly bright conditions. If it's dull, I rate HP5 at 400, and use the 1:1 dilution for 14 minutes.

Kodacolor-X was a color film rated at ISO 80. It was made between 1963 and 1974, and used a special proprietary “C-22” development process that is no longer available. Any Kodacolor-X film that is found or shot now needs to be developed in B&W chemicals and will produce a grey-scale image on the orange film base.

My basic caffenol recipe pr 1000 ml: 125 ml instant coffee, 100 ml crystal soda (or 35g only, if water free soda is used), 20ml c-vitamin. For high ISO films and stand development, also add 20 ml salt (iodized) . 11-15 min.

Make 1 liter as follows: Dissolve the Metol first - then the Sodium Sulfite - into 1/2 liter of water at 125 degrees Fahrenheit (52 degrees Celsius). Add 1/2 liter of cold water (or ice water) to reduce temperature to 68 degrees Fahrenheit (20 degrees Celsius). Developing times for D-23 are similar to those of D-76.

The developer solution is comprised of a combination of chemicals, consisting of alkali and metol or hydroquinone mixed with water. The purpose of the alkali is to penetrate the protective coating allowing the metol to reduce the exposed silver bromide to black metallic oxide.

A wide variety of chemicals are used in black and white photographic processing. Processes in black and white film developing include developing baths, stop baths and fixers, intensifiers, reducers, and toners. The most commonly used developers are hydroquinone, monomethyl para-aminophenol sulfate and phenidone.

Harmful if swallowed. May cause an allergic skin reaction. Causes serious eye damage. Suspected of causing genetic defects.

The most commonly used chemicals are: acetic acid, ammonium sulfate, ammonium thiocyanate, ammonium thiosulfate, bromine/potassium bromide, citric acid, diethylenetriaminepenta acetic acid (DTPA), ethylenediamine tetra acetic acid (EDTA; ferric ammonium salt of EDTA), glycol ethers, hydrocarbon solvents, hydroxylamine, ...