</span><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (jdef @ Jan 19 2003, 02:03 AM)</td></tr><tr><td id='QUOTE'> Jorge, in one of the formulae I found the total emulsion quantity comes to 2000g, what's your best guess as to the area that would coat (on glass)?-jdf </td></tr></table><span class='postcolor'>
Well, 2000 grams depending on the density could mean 1 liter or 2 liters. Assuming you end up with about 1 to 1.5 liters of solution and you coat 8x10 pates, at 2ml per plate I would say about 500 plates minimum. LOL.....I would pare down the quantities before you make that much, unless you really want to spend the rest of your life coating plates and not taking pictures.
OTOH from what I have read the coating porcedure is less than efficient, so maybe you use more, but still you would end up with 100s of plates.
You may also want to consider cyanotyping a few just to see what you get. I love the old cyanotypes myself. I think part of the appeal for me is the fact that they were very common, but are now sort of ignored by many in favor of the more "realistic" tintypes and daguerrotypes.
But it might be fun to do a few prints from these plates.
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Ryuji Suzuki and Terry Holsinger are both working on making their own glass plates. I have seen photographs taken by Terry on glass plates hand coated with a bromide emulsion that he mixed himself. Terry is a member of the Austin Alternative Process Group.