VOIGTLANDER ULTRON 40mm f/2.0 SL ASPHERICAL 脫膠離膠處理 Treatment for cemented lens group separation

這支 日福 40/2 餅乾鏡 的後膠合鏡組出現脫膠/離膠的霧化問題
經過細心處理，重新膠合後，此膠合鏡組恢復原有的乾淨通透

This Cosina made Voigtlander 40/2 pancake lens got a separation issue to its rear cemented lens group.
Following a careful treatment process, the problem has been resolved, and lens cemented lens group looks clean and clear again.