Here are several views of my 1st Lippmann plate, or at least an attempt at it. It's from the same batch of plates that R Shaffer used and by the way Rob, did we ever figure out what the actual emulsion was? I seem to recall that the lady from Laser Reflections gave us something different than Slavich PFG-03C, which is what we originally inquired about.
It was developed with GP-2 in the A+B manner described earlier and advised by Darran Green.
It was soaked in a 10% solution of chrome alum for 10 minutes, 3 minutes in the developer, an 8ish minute wash & a couple minutes soak in a 2% glycerin solution.
My solutions were probably too warm, at 20-21°C, whereas 18.3° (65°F) is recommended. Next time I'll cool them down.
To be honest, none of these pictures show any interference color effect. I believe the plate was generally underexposed and the subject is quite far away. Next time, I'll choose a bolder composition that compliments the small format.
Yes, that's me sitting next to a motorcycle.. I enjoyed trying to sit still for the 6 minute (f/11) exposure, but pesky mosquitoes started biting me at about 3 minutes and at that point I resigned to being a blur in the final image.
The only point where I can see interference colors that resemble reality are in the gas tank, which is Honda's lovely 1971 Candy Gold. There is a distinct gold hue at this point, and it stands to reason as the gas tank was perhaps the only point in the scene receiving full sunlight & exposure (it's quite reflective as well).
I chose a particularly dicey lighting situation (contrasty), sitting under the patchy shade of a hedge tree in early evening.
The strange brown hue visible in one of the pictures is the emulsion side, the same side that in the other pictures looks like a beautiful mirror. Very strange. You can also see evidence of the border where the plate was resting on the mat-board frame. I'm wondering if my "light sink" fabric is doing a good enough job..
The holder was very easy to make, and fun.. but just don't make it until you've measured your plates...! An easy way to do this in the dark is to mark the edges of the plate(s) with a pencil on paper. I ripped out the center divider of a normal double sided cut-film holder and glued the fabric and mat-board frame to the backside of the other darkslide.