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  1. John A Roberts

    Optics quality expectations

    Hi winginit, Binoculars that retail for US $100 to $300, likely cost around 1/2 to 1/3 of that price to manufacture - but many optical tolerances need to be within thousandths of an inch (and mechanical ones within hundredth's of an inch)! So it’s really no surprise that quality control is...
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