Lazzaros,
With all due respect, I've seen your ads here and you seem like a good person in general to deal with. Your pictures have always been on that table with same lighting and everything else.
The problem here is that you have not done a thorough inspection of the lens before selling. Yes, the buyer has some responsibiity to ask more questions to make sure of the condition, but you as a seller also has the responsibility to thoroughly inspect and describe the lens. I will go out on a limb and assume that the buyer trusted your description of Mint because like you said, you sold may things here with no issues.
In the end, I think the main responsibility lies with you the seller for incorrectly describing the condition of the lens, and very small in part by the buyer for not asking for more detailed pictures.
I hope that you can get this sorted out so that you do not leave a bad reputation on this forum... I liked your selection of lenses for sale.
With all due respect, I've seen your ads here and you seem like a good person in general to deal with. Your pictures have always been on that table with same lighting and everything else.
The problem here is that you have not done a thorough inspection of the lens before selling. Yes, the buyer has some responsibiity to ask more questions to make sure of the condition, but you as a seller also has the responsibility to thoroughly inspect and describe the lens. I will go out on a limb and assume that the buyer trusted your description of Mint because like you said, you sold may things here with no issues.
In the end, I think the main responsibility lies with you the seller for incorrectly describing the condition of the lens, and very small in part by the buyer for not asking for more detailed pictures.
I hope that you can get this sorted out so that you do not leave a bad reputation on this forum... I liked your selection of lenses for sale.