chinny
Well-known member
Hi,
I just bought a used (MINT) condition Sigma 500mm EX F4.5 HSM, whoa !! Stunning lens, I have a Canon 1DMK2, Both work beautifully together, however when I attach the Sigma TC x1.4 it doesn't auto focus? (I get a beep, when I MF) Am I correct in saying that it should on a 1D?
I have tried taping the pins and I get it to focus but it just hunts EVERYWHERE !! then finally locks on its subject.
My x1.4 TC is the DG version I know the only difference is glass, but are the electronics different do I have a compatibility issue?
So would love for the x1.4 to work, pleeeeeaasssseee HELP
Paul
I just bought a used (MINT) condition Sigma 500mm EX F4.5 HSM, whoa !! Stunning lens, I have a Canon 1DMK2, Both work beautifully together, however when I attach the Sigma TC x1.4 it doesn't auto focus? (I get a beep, when I MF) Am I correct in saying that it should on a 1D?
I have tried taping the pins and I get it to focus but it just hunts EVERYWHERE !! then finally locks on its subject.
My x1.4 TC is the DG version I know the only difference is glass, but are the electronics different do I have a compatibility issue?
So would love for the x1.4 to work, pleeeeeaasssseee HELP
Paul