Below i’ve listed all the well known and used film developers and the desciptions of each so as to provide some info for someone choosing a developer or looking for a particular film/developer match
One of the oldest commercial film and paper developers, This liquid developer can be stored in high concentrations even at high temperature. Rodinal is not a fine grained developer but because of this it seems to have a higher level of perceived sharpness. Because of it’s ability to be used highly dilute, Rodinal is a great compensating developer. Common dilutions are 1+20, 1+50 and 1+100 stand developed.
ID11 is a fine grained powder developer very similar in nature to Kodak D76. It features similar dilutions of 1+1 and 1+3. ID11 is best used as a standard developer that gives a great balance between Tonal rendition, Sharpness and Grain to allow for maximum enlargements. This is a very common and forgiving developer and can be stored in powder form for extended periods of time.
Ilford Ilfosol 3
Ilfosol 3 is a standard liquid film developer used mostly for medium to slow speeds films at box speed. Generally used as a one shot developer and a dilution of 1+9 it can also be more highly diluted to 1+14 with a slight loss in image quality.
Ilford Ilfotec DDX
A fine grain liquid developer, it’s best used with the Delta range of Ilford films and is designed to give great tonal rendition, Rich depthy shadows, smooth transition through greys and popping detailed highlights. Common dilutions are 1+4 and 1+9.
Microphen is a popular speed increasing powder developer, best used when pushing fast films such as Hp5 plus, Delta 400 and Delta 3200.
A super fine grain, speed reducing powder developer. Very well suited to slow and medium speed films for very high quality. Also significantly reduces film grain in 400 speed films.
D76 is a fine grained powder developer very similar in nature to Ilford ID11. It features similar dilutions of 1+1 and 1+3. D76 is best used as a standard developer that gives a great balance between Tonal rendition, Sharpness and Grain to allow for maximum enlargements. This is a very common and forgiving developer and can be stored in powder form for extended periods of time and can be used for push processing.
Tmax developer was designed for the very popular Tmax range of films. This standard liquid developer produces enhaced shadow detail for normal and push processing. This can also be used on the Tri-x and Plus-x films.
Xtol is a great powder developer offering full emulsion speed with increased shadow details. Xtol gives fine grain and high sharpness and is one of few developers not containing Hydroquinone which can be considered bad for the environment. It has excellent keeping properties and is mixed as a two-part powder.
Microdol-x is a super fine grained developer produced to keep down grain while resulting in very little loss of film speed. Similar in nature to Ilford Perceptol. Common dilutions, 1+1 and 1+3.
Diafine is a two bath speed increasing developer. the first bath soaks the emulsion in a non-active developer and the second bath activates this. The developer is used up on the densest part of the image first, while continues work on the less dense areas giving a flatter negative with less contrast. This can be of particular use if you plan on doing specific contrast work while printing. Diafine possesses very good reuse capability.