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© Rodenstock GmbH
Status: September 2023
▪ Optimal fitting:
The system outputs the determined centering data for an optimal fitting, depending on the method
executed and selected in the system, either eye’s rotation center or reference point. For this purpose,
the customer always stands in front of the mirror with his habitual head and body posture.
By means of the mirror, the measuring distance is doubled and amounts to a total of approx. 1.20 m
virtually. The ImpressionIST® 4+ automatically corrects the normal convergence position of the eyes at
this distance for the view into infinity.
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