How quick could a lens get this bad?
How quick could a lens get this bad? Bought 35 f1.8 lens a month and a half ago. No mention of fungus. Found the lens really boring so did a trade in with mpb for some flash accessories. Today, shock as the price is lowered, and I get this picture. At first I thought it was a mixup but they've proved it is the lens I sent them. Come to think of it, I've never seen the lens with its...