Originally Posted by
Louis Pacilla
It's far more common for mold to eat into the lens coating & in my experience it's far less likely to eat into the glass surface itself. This does not mean that on rare occasion a certain type of mold has not eaten into a glass surface itself but 90% of the time it eats the coating. At least this has been my observed experience.
BTW " A lens at 75mm focal length and a max f stop of f1.9 & I bet won't cover a postage stamp at anywhere near infinity focus so is this a true "large format" lens?
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