Offered 4 lenses for purchase to apply to lens mpb had as used. Three of my lenses were brand new condition never used. Bought for special purpose that didn't materialize. Sent in my lenses and after telling me it would be up to 12 days to look at. Finally did and reduced every one of thier offrrs by 20 -30 %. What a scam. Instructed to return my lenses as thier offers were unacceptable. Plus their used was $20 higher than retail. Willing to do if trading lenses and saved me trouble of selling. Thiers supposedly in excellent condition. Now I doubt! Nobody will respond and so far unable to get my lenses shipped back. I would never do business with this company!