How to transfer a negative from glass plate to digital?

digital scanner

Hello, I will pass the negative to the scanner and process the obtained image with the STUDIOLINE software. In the filters, there is "Image Negative." Logically, the negative of a negative should be a normal photo. There are other software programs, but I found this one which was free. Best regards.

If you don’t have a scanner, you need to photograph the plaque placed on a light table in a dark environment with a digital camera. Then you must transform the image into a negative (negative + negative = positive) with a software to retouch it. GIMP is very good and free. A photography club can help you. Best regards.

scanners are not very effective in this case unless you have a backlight window as large as the glass plate...? it is rarely the case; the best results are obtained by photographing directly in B&W the backlit negative with a diffused light source (negatoscope) or in daylight through a light diffuser (tracing paper). if your camera supports it, take the shot (possibly in macro) directly as a negative; otherwise take a normal B&W photo and convert the resulting image to a "negative" with any software.

A scanner works very well, but when we have plates of 13 x 18 cm, you have to find one with a window of that size! unless you have the means, it is not common... As for me, I use a camera and place the plate (mat side toward me, to avoid reflections from the device) in front of a window, with one or two sheets of paper on a cloudy day. With photo-editing software, I invert the image to obtain a positive (if it’s a negative) and I rotate it horizontally to put it in the original orientation. The results are excellent.

If you can put some money into it (well, a little… it isn’t professional or even semi-professional equipment despite its name), the Epson V750 scanner can scan up to 20x25 cm. Otherwise, a photo on a bench with diffuse lighting.