• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
Feel the intensity, not your equipment. Maximum image quality. Minimum weight. The new ZEISS SFL, up to 30% less weight than comparable competitors.

Good service from Sigma UK. (1 Viewer)


Well-known member

A few days ago I started having F0.0 on my Canon 7D whilst using my Sigma1.4x tc and Canon 500mm F4. Took tele-converter off, put it back on, cleaned the contacts with no joy. Removed tele-converter and tried bare lens and all worked ok.

Took it home and put it back in its bag. A few days later took it out and tried again and it worked. Next outing I was shooting Kingfishers at distances of 30m and F0.0 came up again. Removed tele-converter and shot bare 500mm for rest of morning.

Back at home I put the TC on kitchen cupboard and left it there and looked at prices of Canon 1.4x TCiii. Later I glanced at mine and noticed it was tilting. Upon closer inspection I found 3 out of 5 screws in the mount were missing.

Contacted Sigma Service who promptly replied to ask a few specific questions and then organized for screws to be sent free of charge.

Very impressed parts were still available, and that they sent them to me FOC. I was ready to spend £400 on a new Canon one.

Thanks Sigma service, nice to be able to post positive comments when a problem with your kit arises.

Warning! This thread is more than 3 years ago old.
It's likely that no further discussion is required, in which case we recommend starting a new thread. If however you feel your response is required you can still do so.

Users who are viewing this thread