Hmm, I guess this is lost on me. Care to elaborate?
Originally Posted by Rich Ullsmith
I've never used a powder developer right after mixing, but have used HC-110 in that way.
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I think for powders, a break apart plastic container might work better, so you have a two part sealed plastic container, just large enough to hold the chemicals needed, you twist it and it comes apart drop the whole thing into your container swirl it around, fish the plastic bits out, and use the chemistry. By the same token, it would be possible to have two parts to it, where they combine when it breaks apart.
Originally Posted by holmburgers
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Even better than tablet would be small single-serve packets, like ketchup packets, of HC110 or similar liquid developer. I would package 10mL so that you can easily mix up 50:1 with 500mL of water.
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The standard Kodak amateur developer was a tube of M-Q Elon Quinol developer tablets. 'M-Q' was a standard developer from many companies, usually in two tablets, the second containing the 'activator' (carbonate, one presumes).
The product was succeeded by the 'Tri-Chem' pack of three foil packets that made up 8 oz of developer, stop and fix - enough for developing and contacting a standard amateur roll of 616 film.
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Some friends and I spent the better part of our sophomore year trying to make Beer Fizzies. We never succeeded. Still seems like a good idea, though.
Developer tablets came and went. They were not popular AFAIK. I also don't remember any outstanding qualities of these tablets.
FRISK is not a developer. Neither Menthol nor Phenol are developers, in fact, they are weak cyan couplers. The developer in the referenced thread will develop without the FRISK.
I have actually thought about doing this. Those little "essential oils" bottles are readily available, not very expensive if you buy a case of them, and are frankly quite good little bottles. Spend an afternoon filling a bunch of little bottles, and you've got easy to use premeasured chemicals that are stored in full bottles.
Originally Posted by BetterSense
In case the little bottles don't hold exactly 10 ml, so what if you're dilution comes out at 1:47 or 1:56 instead of 1:50? If you're using individualized development times you've determined by testing, this slight dilution change will be accounted for in your time standard.
Of course, it assumes one shot use.
I don't know if it would be much help having pre-mixed powdered developers in tablet form instead of pouch form, but having individual ingredients that way would be nice. A huge gel tablet of 100 g of sodium sulfite (or 10 smaller ones of 10 g each), or 1 g and 5 g tablets of metol or hydroquinone, for instance. 10 g of potassium bromide would be a helpful one, as would 10 g of sodium carbonate.
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