Primarily because I stress about materials being discontinued, i think it would be good to dabble in some kind of homemade process. I read some stuff from Bostick and Sullivan that makes DIY gelatin emulsions seem reasonably achievable, if slow and blue-sensitive. Yet collodian seems more popular. Is this because collodian is really easier, or is it because it is conceptually further from silved gelatin which, after all, you can buy?
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