I have an issue with my Sigma Sigma 170-500mm F5-6.3 DG APO and I hope you guys can help me out.
Here is the issue I'm having with it. It doesn't matter what setting I set and it still doesn't focus when is out more than 300mm on a far away object however, If I'm close to an object and it's all the way out (500mm) it does focus. For the past years this lens has been working very well. Had this issue since two years now.
I believe the problem is inside the lens, I think the "focusing ring" isn't working properly however, I have never open by myself a lens and try to fix it, I might be completely wrong.
Did anyone had this issue before?
Thanks in advance!