Voigtlander masks for Dynaron

Mask for Dynaron 4.5/100mm




1954. Masks for the Dynaron 4.5/100mm for the Prominent used in combination with Proximeter.
These accessories, fitted on the lens, allow to exactly determine the covered field.
When one use the Proximeter with a Dynaron lense the angle of field is smaller than the angle of field of the finder.
But on close-up distance, it gives images twice large than those obtained with a standard 50mm lens.
These two masks are different each other : the mask on the left has a transparent frame
showing the real image at one meter and at the infinity.

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