Tintypes are a very early type of antique photograph dating back to the late 19th century. They were originally created by coating specially made tin plates with a light sensitive emulsion. These light sensitive plates were placed in holders in the back of view cameras and exposed to light when the photographer opened the camera lens. The plates were then processed in a darkroom with chemicals. The resulting portraits were gray in appearance with good detail but generally flat in contrast. There is no negative in the tintype process, making each one a rare, one-of-a-kind photograph. Tintypes are valuable capsules of history and should only be directly worked on by an archival specialist. Today virtually all tintype images needing restoration are restored digitally on the computer.
Study the condition of tintype to determine if it needs to be cleaned. If there are small pieces of emulsion or rust flaking off, do not clean it. If the surface is stable but in need of cleaning, gently clean it with a cotton swab and distilled water. Blow dry with hair dryer.
Copy the tintype using a scanner or digital camera to capture a digital file of the tintype, Follow the instructions of the device to achieve the best possible image file. Save the image file in the largest possible format. Preferred file types include TIFF and BITMAP. Best file sizes range from 5 megapixels to 15 megapixels.
Make corrections on the image file of the tintype using a photo program such as Photoshop or Paint Shop Pro. Follow the instructions of the program referring to the use of specific restoration tools. These tools will include paint brushes, cloning tools and contrast and saturation controls. Some computer photo programs allow working in layers, so that the original image file is not disturbed. This allows for going back over the steps made in the restoration to make changes.
Print an enlarged copy of the tintype for viewing, framing or display. Create an image folder to organize and store the restored tintypes in a larger collection.