ANyone had any experience with the power lens from Walman Optical. (http://www.walmanoptical.com/files/W...20Brochure.pdf)
How does their Sentinal coating rank in comparison to Crizal, Zeiss, Shamir or Unity?
ANyone had any experience with the power lens from Walman Optical. (http://www.walmanoptical.com/files/W...20Brochure.pdf)
How does their Sentinal coating rank in comparison to Crizal, Zeiss, Shamir or Unity?
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