Heya,IMAGE LINK: https://flic.kr/p/nFAskx IMG_5474
Of course it does. It's not a good thing.
But I will buy cheap old fungusy lenses for dirt, or free, often. Just for fun. I don't worry about spores and stuff. I don't plan on being buried with this gear. I use 8+ year old cameras mostly (5D, 1D2, etc) and some modern APS-C's. I don't spend a lot, but I also don't really care about some fungus, as long as you don't leave it in a dark damp place, it's not going to do much. Here in Florida, it's bright and my stuff is always out in the sun, and I don't care really.
So I like to play with fungusy stuff sometimes just for the heck of it.
, on Flickr
Like this fungusy Takumar 50 F1.4. Got it for nothing. Fungus seems to effect contrast a little. Nothing else.