Sigma 150-500 - Auto Focus Problem (1 Viewer)

Hi my lens is struggling to lock on anything in auto focus mode. I've established the camera itself is fine. Sometimes it will work when the subject is obvious, but it won't lock if there is any possibility of it finding something else - almost too sensitive.

I'm pretty sure it has a fault but any other ideas appreciated.

Also, can anyone confirm the length of a Sigma warranty?

Thanks.

2yr warranty and it's not your fault mine already had this issue and was repaired under warranty.
It's a mixed bag issue but you and I haven't been the only one's affected by it.

Seems quite a common problem. Sent mine back and they said it was a faulty sensor. Been a new beast since then.

dcweather said:

Seems quite a common problem. Sent mine back and they said it was a faulty sensor. Been a new beast since then.

Click to expand...

Yes mine's fine now.