Quote Originally Posted by Tin Can View Post
a negative is made by coating glass or clear film with emulsion

you MAY use the same chemistry to now print the negative onto paper or whatever, making a positive

most do use different chemistry for each part of the process

but not necessarily necessary

a dime contact imaged onto a negative will be a clear hole

when the negative is contact printed onto paper it is a black hole

enlargers just make things bigger
Thanks, I got that part. But I am asking about the emulsions and the developers. I am quite familiar with what an enlarger does. Here’s my question - if I put Foma Emulsion (for example) on a glass plate and develop in in HC 110, I will get a negative. Got it. But if I put that same emulsion on a different glass plate, expose it to a negative from an enlarger and develop it in Dektol (for example) will I get a positive print? These are 2 different applications of the same Foma Emulsion. Follow what I’m getting at here? Is it possible for the same Foma emulsion to be used to produce positive & negative images? The part that seems strange to me is that photo paper has an emulsion and film has an emulsion, yet they aren’t the same emulsion, are they? Hopefully that explains my question better, thanks.