via the lens wrote:
HI,
Tamron will fix it free the first time, at least that is what they did with my 150-600. Use their web site to send it in. I suppose after that, they charge. I got mine fixed and it's been sitting in a drawer ever since, don't believe I can trust it as it let me down twice. I use my Nikon lenses instead and the always work and do a great job. Sorry I cannot be more positive. I did get some good shots from it before it quit working.
Great advice. I sent my d750 in for repairs. I think I'll put it in a drawer and never use it again when it gets back too.