COOKE SPEED PANCHRO 40mm f/2 (T2.3) 後膠合鏡組脫膠離膠重新黏合 Re-cementing for rear lens separation

這支 COOKE SPEED PANCHRO 40mm f/2 (T2.3) 的後膠合鏡組出現霧狀的脫膠/離膠問題
處理的方法就是把鏡片取出後，分開鏡片、清潔鏡片、重新黏合，並將鏡邊重新塗上黑漆
重新黏合後，鏡片恢復乾淨通透！

This COOKE SPEED PANCHRO 40mm f/2 (T2.3) had a lens separation on its rear cemented lens group.
The way to solve this problem is to make a re-cementing treatment.
The standard treatment procedure I created is: taking out the lens, taking apart the glasses which originally cementing together, cleaning, re-cementing with precise collimation, re-painting black paint to its lens edge.
The lens looks clean and clear after re-cementing treatment!