Noctilux glass block同一般鏡頭的比較
最近買左件咁既得意野，同大家分享下。Acquired from a retired Leica Rep in the early 80’s these are samples of optical glass that were given to Leica Sales Reps when they visited the Factory in Germany for training.The claim is that the Noctilux glass is the same as that which was used on the aspherical element on the first variants of this classic lens.Both pieces are still labeled with the original masking tape and pen.Dimensionally almost identical, the Noctilux glass is almost twice as heavy as the “regular” optical glass.It he days prior to ROHRS it is amazing how much lead and other heavy materials you could add to glass to enhance its optical properties.
The plain glass weighs @190 grams.As you can see from the image on the scale it takes @160 grams to get the scale to balance.
{:4_133:}{:4_133:}{:4_133:} Ultimate! 幾過癮！ very interesting, thanks for sharing 可以自己手磨支鏡，獨一無二......:lol:lol Waaaaaa! My wild guess is that they have probably added some minerals, like lead, into the glass to make it superior. The consequential effect is, of course, adding weight into the glass.
NOCT 玻璃都搞到手!!! 堅 開眼界了 wa!!!!!!!!! wow .. :L:L:L {:3_41:} 長見識, Thank you. {:4_91:} 心思思睇龍爭虎鬥{:4_111:} 正常sample靚仔D，比返Leica做返支a la carte 鏡{:4_118:} 我夢想就係想收藏一件 leica 既玻璃肧 正如玉器～識玩一定玩原石
Ming Gor 成魔之路～ Ryota 發表於 2015-2-2 15:54
正如玉器～識玩一定玩原石
Ming Gor 成魔之路～
原來係咁，我淨係知玩舊勞識玩係玩未磨殻既。 C9.99 發表於 2015-2-3 10:23
原來係咁，我淨係知玩舊勞識玩係玩未磨殻既。
講開舊勞...
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