Ronald Moravec said:You need a good scale to measure small amounts. This will be $100 or more. Almost anything is ok for sodium sulfite as it is non critical and does not effect activity.
I don't know if you noticed, but the most expensive part of D-76 and many other developers is the sodium sulfite. It should be cheap as dirt, but isn't.Ronald Moravec said:I will second the Photo-Lab index.
Mixing chemicals is not necessarily cheaper. I once figured compared Dektol and D72. They were almost the same. The advantage is you can make non commercially produced developers. Two part developers are one example. Home made D76 will get little pieces of precipitate in it after several weeks. The commercial product will not do this.
You need a good scale to measure small amounts. This will be $100 or more. Almost anything is ok for sodium sulfite as it is non critical and does not effect activity.
BarrieB said:Who publishes ' The Film Developing Cookbook ' ? ( how many pages, price etc)
dancqu said:Three, there are a few who swear by the two ingredient D23.
From three chemicals quite a few developers can be compounded.
That's got me wondering. How about D23-VC; one-shot of
course? My understanding is that A. acid is short lived at
working strength when at use in tank or tray. Dan
David A. Goldfarb said:I have _The Darkroom Cookbook_, but not _The Film Developing Cookbook_.
Grant Haist's _Modern Photographic Processing_. It's out of print except as an on-demand reprint, and even marked up copies are fairly expensive, but once you have it, you'll know why it commands such a price.
Adrian Twiss said:How does one get hold of a copy of the photo lab index? I understand they are quite old and out of print.
I have both. I must say that I consider the Darkroom Coolbook the more useful. Both bools are full of "conventional wisdom" of which some is not universally true. A fine-grain developer may have lots of sulfite or none. A fine-grain developer may have low pH or high. It may be concentrated or dilute. High acutance developers are an enigma. You may find what you think is high acutance, and when you look closely, you see tonal distortions. It may be that is what you want. You must be careful when you mix a formula that is proclaimed to be this or that because it contains this or that or because it is diluted 1+1000 or=== you name it. Wait til you have tested it against what it is claimed to be better than.fhovie said:I have both the darkroom cookbook and the film developers cookbook. The film developers cookbook also explains why certain chemicals do certain things and will help you understand why you would use as certain chemistry for different situations. I highly recommend it - that you read it cover to cover - It is more than a recipe book. In my darkroom, they are both -must-haves-
Ronald Moravec said:I will second the Photo-Lab index.
Mixing chemicals is not necessarily cheaper. I once figured compared Dektol and D72. They were almost the same. The advantage is you can make non commercially produced developers. Two part developers are one example. Home made D76 will get little pieces of precipitate in it after several weeks. The commercial product will not do this.
You need a good scale to measure small amounts. This will be $100 or more. Almost anything is ok for sodium sulfite as it is non critical and does not effect activity.
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