Hi folks, gotten my Sigma 10-20 2 weeks back from an online seller. I think there's some back focusing problems. I have sent the following photos to the seller but he claims that there is no issue with the lens as I did not use the correct way to check focus. Can
someone give some comment/suggestion? Do I have a case here to send the lens for calibration and ask the seller to honour the warranty due to manufacturing defect?
1. focus on letter N, but area of focus is behind letter N
2. focus on 8, but area of focus is around 7
3. focus on 10, but area of focus is around 9
someone give some comment/suggestion? Do I have a case here to send the lens for calibration and ask the seller to honour the warranty due to manufacturing defect?
1. focus on letter N, but area of focus is behind letter N
2. focus on 8, but area of focus is around 7
3. focus on 10, but area of focus is around 9