MTL - Hunting College-v2 Chapter 515 great cold

The practical exams in the twentieth week were lackluster.

Zheng Qing felt that he could get good grades in most of the assessments, except for alchemy—candidates were required to use the collodion photography technique invented by the famous alchemist Archer to take a clear picture of the synthetic beast they had previously refined. Photo.

This technique needs to apply a layer of collodion evenly on the glass base, and then immediately immerse it in silver nitrate solution to enhance the sensitivity of the base, because the drier the collodion is, the more sensitive it is.

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