配鏡片
各位有無好推介?我用左 , Essilor 許多年:D Carl Ziess...貴DD, 不過我覺得最好... Zeiss! good stuff ... hoya should be more acceptable for normal user Essilor la Essilor X2 我係用HOYA.....草根D:lol 各位師兄有無用開邊間眼鏡舖配漸變鏡片好介紹? Carl Ziess! no doubt!
i go to reddot optic always I use Nikon lens... Carl Zeiss don't have double aspherical lens so I picked Nikon. Essilor 香港價錢很經濟,Zeiss—般要比較長預掟時間,不過相信Zeiss coating比較好
睇你近視有幾深, 近視少而鏡薄去造超超薄係會有aberration, 我五百度左右有散光, 細嗰套ok, 大鏡框睇邊位有aberration, 我用1.67薄,視光師話未夠深用再higher index glass, 市面上一般已經用晒非球面,雙非等等就要睇你眼睛condition, 老花,遠視等等,眼睛越好返而用唔到更高科技 以前用Zesis, 而家轉用Essilor. 個人感覺Zesis較易花. 上次走去東京站金子同人買野... 整到我又驗下眼... 仲即刻配埋鏡... 日本鏡...又平又滿意, 推介! Found this on the Internet, good reference... it is 1.74, not 1.71. :lol
Plastic High Index Lenses Thickness Guide
1.61 index lenses are approx. 25% thinner than 1.5 index lenses
1.67 index lenses are approx. 40% thinner than 1.5 index lenses
1.74 index lenses are approx. 55% thinner than 1.5 index lenses
In addition to the above Double Aspheric lenses (Bi Aspheric) are flatter than standard High Index Plastic (single aspheric) lenses, so there is less curvature is the lens. This results in a flatter design hence makes the lenses approx. 10% thinner in all lens indexes.
1.61 index Double aspheric lenses are approx. 35% thinner than 1.5 index lenses
1.67 index Double aspheric lenses are approx. 50% thinner than 1.5 index lenses
1.74 index Double aspheric lenses are approx. 65% thinner than 1.5 index lenses
Glass High Index Lenses Thickness Guide
1.7 index lenses are approx. 50% thinner than 1.5 index lenses
1.8 index lenses are approx. 65% thinner than 1.5 index lenses
1.9 index lenses are approx. 80% thinner than 1.5 index lenses
If you are short sighted (near) and have a strong “-“ prescription, the thinnest lenses available are Glass 1.9 index lenses.
If you are long sighted (far) and have a strong “+“ prescription, the thinnest lenses available are Plastic 1.74 index Double aspheric lenses.
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