Well, I have not problems at all with the images themselves with my old collodion, nor the negative collodion bought last month. Just this foggy mess with my own made collodion, just 5 days old, now. And the silver bath was sunned (and filtered) for 24 hours just prior to those images. The problem, in fact, happened before % after sunning, but ONLY with my own made salted collodion. And the base collodion, bottled, was bought last november or so in a specialist chemistry shop. The gravity is arround 1055, a bit low, I know, but should work even in 1040, they say. And pH it's arround 3-3.5, although I'm having problems reading my pH strips.
Waiting up to 5 minutes with the plate in the silver bath helps reducing the problem, but then 5 minutes is way above the more usual 3 minutes and if I wait longer there would be more problems, I presume (contamination of the silver bath, less sensitivity in the plate...).
I think that is some mistake I did in the mixing, probably I added too much water, as it was the first time and had problems dissolving the cadmium bromide. In fact, the cadmium bromide was already "caked" in it's original bottle, so maybe it was damp already?
About the baking soda, Quinn Jabobson says so, at least citing XIX Century manuals, N. B. Burgess in particular (he says "saleratus", wich is baking soda). Here it is, in minute 21:
https://www.youtube.com/watch?v=6F0e...index=8&t=705s
In fact, the baking soda did not dissolve at all in the collodion, as Burgess says, and in part remedied some of the problem.
I even remember having this kind of problem with a salted collodion I bought from a well known source. I used it only a few times as it gave me problems, only that bottle too. Maybe too much water or other problems in the mixing?
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