As the title says, my questions is whether lens fungus smells. I bought a MD Rokkor 50/1.4 lens on Ebay, and upon its arrival noticed a really strong smell of mildew/rotteness the lens has. I have checked it for fungus, but there seems to be none. However, on the inside of the lens there are weird light grey areas on the black tube and there is absolutely no dust inside - could it be there was fungus inside, and someone cleaned it off? I really would like to keep the lens, but am very discouraged. What do you think?