SIGMA 18-35mm F1.8 DC HSM for Canon. I bought this three years ago for night photography, but I've only used it twice and it's been sitting in a dehumidified storage box ever since, so I'm selling it. I don't see any fog or mold. I think the condition is good; at most, there might be minor scratches. No returns, no refunds, no exchanges (3N). Feel free to ask any questions!