what are the three chemicals called for developing pictures, i know i need water, but wht r the other 3 called

Question

yeah i know water, and there are three other ones but i dont know what they are called..

Answer 1

Developer-Generally some sort of organic reducing agent(common ones include hydroquinone, metol, and phenidone) in an aqueous alkaline solution.

Stop bath-Generally a dilute acetic acid solution. Since most developers work best in an alkaline solution, the acetic acid lowers the pH to the point where development can no longer take place.

Fixer-Historically, this has been sodium thiosulfate(hypo). This serves to form a soluble complex silver ion which replaces the undeveloped insoluble silver halides suspended in the emulsion.

Film technology has advanced to the point, though, where sodium thiosulfate fixers are no longer efficient and can't wash film to archival standards. Rather, all darkroom work should be conducted using a Rapid fixer, which is based on ammonium thiosulfate and acetic acid.

I've never used a hardening fixer or separate hardener when developing film. Film, especially modern film, doesn't need one.

By the way, I disagree with the previous post about using bottled water to mix chemicals. Chemicals are formulated to work just fine using tap water, and in fact using water with a low ion content(such as distilled or deionized water) can promote excess swelling of the emulsion, which leads to inefficent development and fragile emulsion.

Answer 2

Ofcourse! Gerard Way Mikey Way Ray Toro Frank Iero Bob Bryar

Answer 3

Developer - check for what your film or paper recommends

Stop Bath - stops development

Fixer- hardens the image and makes it stable

Water - for mixing chemicals. It should be a bottled water for best results.
Also for washing the prints to remove any residual traces of chemicals. Ordinary tap water is fine for washing.

Answer 4

Black and white prints I think is what you are asking.
I use Dektol for developer, Acitic acid for stop, and Fix to fix the print..All manufactured buy Kodak.
Now..If you are talking about developing BW film. Then the only thing different is the developer which I usually use Kodak D-76.

Answer 5

developer and fixer...there are rinses in between

the exact chemicals will depend on which process you are doing. like c-41 which is the color processing at one hour photo using one type of chemicals. black & white is another, non-c41 color processing is another story, etc.

Answer 6

And don't forget guys...ventilation