Originally Posted by
Mark Carstens
You're right, Nathan. Generally speaking you use a mounting flange or a retaining ring to attach lens to board.
In this instance, there isn't room for the custom mounting flange that was made for the lens by its previous owner (it's a rectangular cast aluminum plate with mounting holes near the corners). Threading the board is actually the most efficient use of space (it's a technika-style board...tiny) given that the lens is a 24" APO Artar in barrel.
In essence, it's as if I'm making the board and flange/ring an all-in-one proposition.
~Mark
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