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The simplicity of the process made it very attractive to amateur photographers.
Printing out papers fall into two categories, those coated with metallic salts, and those with coated with an emulsion.
Light energy alone, usually from the sun, reacted with the light sensitive chemicals on the paper’s surface to produce an image.
In printed images the grey areas are usually made up of black marks that are spaced to create the optical illusion of greys.
Though most of us today are familiar with the concept of photo grain, this is mostly because we have experienced very large prints made from small 35mm negatives.
This too is not foolproof for many publishers had large stocks of photo papers using them for decades after they stopped being manufactured.
NOTE: There were many other photo papers manufactured in addition to those listed on this page, and even these could be made in different finishes from matte to glossy.
If the name appears on the photo itself, it is because the negative was scratched into or written upon but it could have been printed at any time.
Some companies were still printing real photo postcards in the 1970’s from negatives taken in the 1890’s.
The photosensitive solution used in this process soaks into the paper, so the original paper surface remains dominant in the final print.
This gives these images a very matte look not normally associated with photography, and making some easy to confuse with collotypes.
Many other brands of photo paper were also manufactured in Europe but rarely left the continent.Tags: Adult Dating, affair dating, sex dating