le conchiglie di Martina

I don’t know. Perhaps the cold, perhaps bad karma. But the collodion has lifted all over creating those star-crystal-shaped spots, mainly in its thinner part (black areas, shadows)

It is the first time I see this artifact. Has anyone some suggestion?

 

wet plate collodion. Black glass ambrotype. 13X18 cm (5X7 “)

Fatif view camera. Rodenstock Sironar 1:6,8/360mm (6 836 747). Ott: Compur 3.

Quinn’s new guy. Developer traditional ferrous sulphate. Fixer: thyosulphate.

Done