I have read that Apo-Ronars sold in shutter were multi-coated. I can get myself now an Apo-Ronar 300mm (in shutter) made between 1966-1970. However there is also an opinion that multicoated ones should have either marked MC on the front lens cell or with a blue ring around it). This lens doesn't have such feature. Are there chances it is multi-coated? Do I lose any imaging capabilities by getting the single-coated one?
By the way, I also learned from a respectful source that both schneider & rodenstock did multicoating on their LF lenses from the early 1960 onward. They only started putting MC on the lenses later. The later lenses have many more layers on them than the earlier ones but most have 3 to 5 even from 1960 and
this qualify as multicoated.
Please share your experience with Apo-Ronars.
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