Lao photography yin

Common old photo fakes mainly include:

Old printed matter: counterfeiters make old exquisite printed matter and put it into photo frames or picture books for sale. Most of these fakes are processed by postcards, which is relatively easy to distinguish. If you look at them carefully with a magnifying glass, you can identify them.

Do the old after remake: remake the original and printed matter before doing the old, and sell them as old photos. Some counterfeit products are specially developed with old photographic paper. Old photos can be soaked in tea, browned by chemical methods, and the color of samples of old photos can be imitated with insufficient fixation. However, anyone who has knowledge of photography darkroom technology can see the flaw. Authentic old photos turn yellow because of age and sunshine, and the front and back naturally turn yellow. The yellow color of counterfeit products is soaked in liquid medicine, colored by hand, stained and uneven.

Remake the original old photo with color film: after remake, develop it with color paper to get the same hue and shape as the original. Some experienced counterfeiters had to remove the colored paper film and put it on an old hard card, pretending to be the real thing. Faking in this way, if not carefully identified, can sometimes make people fall for it. The identification method can be seen from the old scratches on the photo. There are tiny scratches on the old photos, and tiny scratches, creases or cracks with different shades and irregular directions can be seen under the magnifying glass. Although the fake is old and yellow, there are no traces and lines in the photo.

Reprint with the negative of that year: after printing, do the old treatment. This kind of photo technology is of high quality. Although it is a fake, it actually has a certain collection value, but it is not the real thing of the year, and its value has been greatly reduced. Moreover, although the photographic paper for reprinting photos is old, there are always traces. Real old photos, naturally use old photo paper. If you take photos at 1900, you use photo paper produced by 1990, which is fake.