Old Selenium-dependent gear
Scanned print.
Mamiya 645 ProTL w/ M-S 120 mm f4 Macro (1:1).
Rollei RPX 25 in Rodinal 1+100, semistand 1 h.
Printed on Fotokemika Varycon RC, developed in Moersch Eco 4812 and split toned in Thiourea-Selenium.
Se is not only important as a toner in analog photography, it also exhibits light-sensitive properties and thus was used in light meters (surprisingly correct even after >50 years).
From left: Zeiss Ikophot, Walz Corona and Weston Master II.
Old Selenium-dependent gear
Scanned print.
Mamiya 645 ProTL w/ M-S 120 mm f4 Macro (1:1).
Rollei RPX 25 in Rodinal 1+100, semistand 1 h.
Printed on Fotokemika Varycon RC, developed in Moersch Eco 4812 and split toned in Thiourea-Selenium.
Se is not only important as a toner in analog photography, it also exhibits light-sensitive properties and thus was used in light meters (surprisingly correct even after >50 years).
From left: Zeiss Ikophot, Walz Corona and Weston Master II.