Alfredo Duenez

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About Alfredo Duenez

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  1. Lens Blank Groups

    Steve, I agree with with you. if we can get an agreement on blank group category it will be great. Typically I have seen what you describe: Material Index / SF vs SL / Surface Coating Attributes (No Coat/ HC / AR) / Phototropic characteristic (clear/photo-trans/polarized) / color....One thing to consider will be some of the tint/sun color also....I believe some of the existing tables on different LMS can be a good start.....