Daylight etching method, silver plate photography and the link and difference between the Karo type photography method

Their connections and differences are as follows:

1. Daylight etching: It is a technique that utilizes light for image transfer. It is done by exposing the negative and the masking film together to sunlight, which, depending on the degree of light blocking of the image, causes the aluminum layer on the negative to be etched, resulting in the formation of grooves and ultimately an image. This method is typically used for making printed circuit boards, microchips, and the like.

2, silver plate photography: is a silver plate to record images on the technology. It is by applying a layer of photosensitive adhesive on the silver plate and coating the adhesive on the black and white negative, and then the silver plate and the negative are placed together for exposure, and after developing and fixing, the image on the silver plate is finally obtained. This method is usually used for making prints, printing templates, and so on.

3, Caro photographic method: is a technique to record images on photographic paper. It is by placing the photographic paper in a dark box, and then placed on the photographic paper with a glass plate coated with silver particles, through the transmission of light to form an image on the photographic paper. This method is usually used to produce artistic photographs, scientific research, etc.