COOKE DEEP FIELD PANCHRO 100mm 4inch f/2.5 膠合鏡組脫膠離膠重新黏合 Re-cementing for the lens elements separation

 這支 Cooke Deep Field Panchro 100mm 4inch f/2.5 的後內膠合鏡組(第三鏡組)有脫膠離膠的問題

依照正常的處理程序，鏡片取出後，將兩鏡片分離，再重新黏合，並重新塗上鏡邊壁的黑漆，便可完美的解決脫膠離膠的問題！

This Cooke Deep Field Panchro 100mm 4inch f/2.5 suffered from a lens elements separation on its rear internal (3rd) lens group.

The problem can be totally solved by following the standard treatment procedure, taking out the lens -- taking apart the lens elements -- re-cementing the lens elements -- re-painting the black on the lens edge.