Ok. Making great strides thanks to this forum. I have 4x5 glass plates subbed w/a Rollei Gelatin & chrome alum mixture. That part went pretty well for my first try. One plate has some streaks on it, the others are quite clear. They are dried. I am now going to coat them today. I am using Foma Emulsion for the foreseeable future, as I learn my process. My question is about exposure. I will be shooting them with a Speed Graphic with an Aero Ektar f2.5 lens. What ISO is the ball park to begin with? I also have a blue 47 filter to put over my incident meter for a rough idea of exposures. I realize that testing, testing, testing is the name of the game but I am uncertain as to where to start as far as ISO and exposures go with this new endeavor. Thanks in advance.
The other trick I learned was in response to my above post. It was suggested to use clear plastic triangles instead of wire to support the plates. Plastic from a cd case apparently does the trick. I will report back once I try everything.
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