Quote:
Originally Posted by 209x50
The manufacture of perfect glass and the grinding technology peaked 7 or 8 years ago. Coatings are the only frontier left and it is amazing the difference that coatings make, even the order in which the coating are placed on the glass in the case of the Zeiss Victory there are 72 layers. Most coatings are designed to over come light refraction which is the biggest inhibition to light transfer.
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Plus glass makers are developing more exotic types of flourite mixes to make their HD lenses.