Positive glass-plate ambrotypes and tintypes largely follow the same process, only potassium cyanide is preferred as a fixing agent because silver particles look brighter against the background.
Taking A Wet Plate To DigitalThere are several methods for making a digital copy of completed wet-plate negatives and positives, including flatbed scanners. Other methods require stripping of the collodion image and transferring it to paper or other substrates. While there are wet-plate simulations in Photoshop, most feel that the visceral organic quality to a wet-plate print is largely lost. There are a few methods for gaining digital versions of analog prints, however. A flatbed scanner with a lot of resolution is the most popular option, while the negative and positive glass plates also allow you to print large paper contact sheets for scanning, as well.
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