IKOFLEX

[marshm-3]

I have a 1939 IKOFLEX II lever focus, lens 1:3,5 f=7,5 cm serial #1791825. It has what looks like an oil slick appearance. Would the lens have been coated in that year or is it possibly "bloomed" viewing and taking lenses?

 

[IanG]

CZJ did coat some lenses from 1938, but they are few and far between until it became the norm post WWII. However, all early coated CJ lenses carried the red T marking, even pre-WWII. It will be natural blooming.

Here in the UK T.T.&H had begun coating slightly earlier, but it was classified as a military secret.

Ian

 

[marshm-3]

Thank you. I suspected so. The bloom is very pronounced comparable to one of my coated lenses What effect might it have upon black end white photography?