WARNING: That lens fungus spread way faster than I expected in 60 days
I got a nice old 50mm f1.4 back in March with just a tiny spot of fungus near the edge. Thought it would be fine for a while, didn't rush to clean it. Checked it again two months later and the fungus had spread across like a third of the rear element. The before and after photos were night and day, hazy and soft where it used to be sharp. I learned the hard way that storage humidity matters a ton, my cabinet was sitting around 70% after I tested it. Now I toss silica gel packs in every case and check lenses monthly. Anyone else had fungus jump that fast on them or am I just unlucky?