PDA

View Full Version : Black glass



Falkenberg
05-08-2008, 05:08 AM
I was wondering if I used liquid emulsion on black glass if the image would look like a positive when developed. Has anybody tried this ?

freygr
05-08-2008, 09:17 AM
I don't thing so, black on black???

TheFlyingCamera
05-08-2008, 09:32 AM
It should become a positive. That's how ambrotypes were and still are made. The downside to black glass is the cost - it is several times more expensive than clear glass.

Kerik
05-08-2008, 10:42 AM
It will likely appear as a positive, but I doubt to the extent of an ambrotype. The silver in a wet plate collodion emulsion is kind of whitish under reflected light which enhances the reversal effect seen in an ambrotype. I presume this is the result of the developer used for the process which is ferrous sulfate based. I wonder how liquid emulsion would respond to this type of developer? I've never worked with Liquid Light or similar products.

Ian Grant
05-08-2008, 10:55 AM
You can make up a white toner, so yes but you would need to make a negative image as the toning reverses the image tones. Unfortunately you need to use Cadmium Chloride which is highly toxic.

I have tried it, the whit isn't that clean looking though.

Ian