The Walter RX Leica M rangefinder astigmatism rotating eyepiece incorporates a special dioptre correction lens, and allows people suffering from astigmatism to use Leica rangefinder cameras more easily and effectively.
Walter RX Astigmatism Eyepiece for Leica Rangefinder Cameras
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Astigmatism,
Cameras,
Eyepiece,
Leica,
Rangefinder,
Walter
