Hi all i recently acquired a brand new 400 5.6 and I'm very happy with it but i would like to stack on a 1.4x TC and see if i can maintain AF.
I've read that the Tamron 1.4x does this so i picked one up at a discounted price of a camera forum and it doesn't even work at all.
Everytime i take a picture it tells me there is an error communicating between the lens and the camera and it says to clean to contacts.
Now i'd still like to use the TC even if its only in MF but i can't even get the TC to work in the first place.
Any advice is appreciated, thank you.
I've read that the Tamron 1.4x does this so i picked one up at a discounted price of a camera forum and it doesn't even work at all.
Everytime i take a picture it tells me there is an error communicating between the lens and the camera and it says to clean to contacts.
Now i'd still like to use the TC even if its only in MF but i can't even get the TC to work in the first place.
Any advice is appreciated, thank you.