Hi, I have been using my Sigma 18-35 1.8 with D7100 for my clothing photography for few months and I finally want to discuss about this issue. The lens would focus perfectly in Live View. However, it won't focus on the object that is further than 1 yard. I've tested my D7100 with other lens and they seemed to focus right. Therefore, this isn't my D7100 problem.
Strange thing is that Sigma 18-35 CAN focus perfectly for objects within 1 yard in both Live View and view finder focusing. It only have trouble focusing on objects outside 1 yard with view finder focusing -- Live View focuses perfectly though.
Do I need to send this in to Service Center? Or am I doing something wrong? Anyone have similar experience with 18-35?