Embdude
27-Jun-2018, 15:42
Some of the older large format cameras the ground glass has a row of clear circles what is this used for ?
Jac@stafford.net
27-Jun-2018, 18:17
Presuming the clear spots are the result of removing the texture of the ground-glass side they might facilitate aerial focusing, however usually that is done by done by drilling through the glass.
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