A spectacle of +5.00DS with a BVD of 12 mm and distance PD of 65 mm. Calculate what distance to OCs should be set to minimise prismatic effect??
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A spectacle of +5.00DS with a BVD of 12 mm and distance PD of 65 mm. Calculate what distance to OCs should be set to minimise prismatic effect??
How can an OD even be asking such a question ?
The question makes no sense. There isn't enough information.
Yup. Best thing is to find a 49/16 that fits on center, a compensated FF lens and it would be a moot point.
Your question doesn't actually make any sense to me.