Making a salt print in 16 steps.
Salt prints are not difficult to make. It is time consuming and you need to use quality materials and follow the proper steps.
1. Take a digital picture. (Not authentic 1833 technology)
2. Print a negative image on a digital printer. Salt prints are made as contact prints. Thus the negative has to be the same size as the printed image. I prefer 8" x 10". (Not authentic 1833 technology. From here on further authentic 1833 technology.)
3. Select and cut quality paper to the proper size.
4. Immerse the paper in a 2% salt water solution.
5. Allow to dry.
6. Paint paper evenly with 12% silver nitrate solution in a darkened room. The brush should not contain any metal parts.
7. Allow to dry in a darkened room. The paper is now sensitive to ultra violet light.
8. Mask the paper wit a negative and expose to sunlight for +/- 3 minutes. The silver salt converts to metallic silver creating an image.
9. In a darkened room wash the paper under running water for 5 minutes to wash out any unexposed silver salt.
10. In a darkened room "fix" the image by immersing in a 10% sodium thiosulphate solution for 3 minutes.
11. Briefly wash under running water.
12. Still in a darkened room, fix again in 10% sodium thiosulphate solution for 3 minutes.
13. Briefly wash under running water.
14. Immerse in a 1% sodium sulphate solution for 5 minutes to neutralise any traces of sulphur left after fixing.
15. Wash under running water for 30 minutes to wash away all remaining chemicals.
16. Allow to dry.
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