Stand and Semi Stand Development by Larry Dressler AKA inetjoker http://www.flickr.com/photos/jokerphotography/
Q: What is it?
A: it is the use of a highly dilute developer with an initial agitation of 30 seconds to 1 minute then setting it down for an extended amount of time with out further agitation.
Q: Semi-Stand Development what is it?
A: it is similar to Stand development but during the stand process you give the film tank an inversion or 2 every 10-30 minutes.
Q: Why use this method?
A: There are several reasons the first one is that it allows for a great compensating effect with your negatives if the light is very contrast or the film is a high contrast film.
The second reason is that you have a film you don’t know the development time for but you have shot and wish to develop. The nice thing is that with the very dilute developer and a wide latitude in time the film will develop to finality at box speed and then stop.
Q: What developers work well for this type of Development?
A: Rodonal is the #1 developer used for this method because it won’t cause Bromide drag. What is bromide drag? Bromide drag is the accumulation of bromide a byproduct of the development of the film and it causes streaks and uneven development.
Other developers can be used like HC-110 but in that case the semi stand method is required because it will allow for removal of bromide build up.
Q: Times and Dilutions what do I do?
A: This is where it is easy and not. With Rodonal it is accepted that at 1-100 with full stand 1 hour at box speed and another hour for a 1 stop push at 20C but here is where it gets tricky. Maintaining the 20C for an hour or more. Easy answer is have the developer at about room temperature and don’t worry because unless you have them at 23C or above the times are the same and using room temperature also avoids thermal circulation within the developer.
Q: What is Thermal circulation?
A: This is the warming and cooling of the developer in the tank that causes warm to rise and cool to fall causing uneven development.
Q: Are there other ways to avoid Thermal circulation?
A: Yes and though many film manufactures don’t recommend this with their film for our method it is needed it is the Presoak. Yes the should I or not presoak. I recommend about 5 minutes in water that is at room temp to season the tank and film not only that it will swell the film to allow the developer to evenly saturate it but slowly to avoid over blown highlights.