Sigma 70-200mm AF problem

[kelack]

My sigma is not autofocussing and will not take a picture unless it is in focus, can anyone help please. All my other lenses are working, I have gently wiped the sensors, my camera is clean, I've searched on google and I've searched on here but not finding anything out really, which is why I am now posting.

I have tried it on all different settings. I have had it 14 months.

[kelack]

Why is it that for 3 weeks I've had this proble, tried everything then the minute I post on here it starts bloody working :bang::bang: Not quite sure what I did but played with the focussing ring and then tried it and now it works. :thinking:

[mxfun]

Probably an obvious one ,have you tried the manual settings ,it should take a shot in focus or out oof .Does the A/F M/F switch on the lens feel like it's working ,it might be faulty .You say it doesn't auto focus ,will it focus manually :shrug:





Oh well ,i was wrong anyway..:D, Glad your up and running again,superb lens .. eh ..:thumbs:

[snapper8v]

I had this problem just before Christmas and it turned out to be the focusing motor, £73 later and everything's now O.K.! Give Sigma a call.

LAWRENCE

[kelack]

Thanks mxfun and Lawrence for your replies

It died again at the weekend about 10 minutes into the rugby match I was at. Luckily I had a back up 18-200 not fast enough but did the job

It's annoyed me a bit as Sigma have already fixed it once and the warranty ran out in December

Might have to buy a new one altogether, yippee, shopping, ooer, no money :lol:

[Les McLean]

Thanks mxfun and Lawrence for your replies

It died again at the weekend about 10 minutes into the rugby match I was at. Luckily I had a back up 18-200 not fast enough but did the job

It's annoyed me a bit as Sigma have already fixed it once and the warranty ran out in December

Might have to buy a new one altogether, yippee, shopping, ooer, no money :lol:

This happened to me once, not a focus problem, but Sigma had fixed a faulty switch (under warranty), it went faulty again out of warranty, but they still fixed it free of charge.

It could be worth contacting them?

[cowasaki]

Thanks mxfun and Lawrence for your replies

It died again at the weekend about 10 minutes into the rugby match I was at. Luckily I had a back up 18-200 not fast enough but did the job

It's annoyed me a bit as Sigma have already fixed it once and the warranty ran out in December

Might have to buy a new one altogether, yippee, shopping, ooer, no money :lol:

When did they fix it, some companies re-extend the warranty to say 3 months after the last repair. Certainly worth a call just to ask.

[mrgubby]

It's annoyed me a bit as Sigma have already fixed it once and the warranty ran out in December

Might have to buy a new one altogether, yippee, shopping, ooer, no money :lol:

Sigma do three year warranties on the EX lens range, when was it bought ?

[kelack]

Thanks for your replies, for some reason I thought I had a one year warranty, I've had it 13 months!

I will ring them and ask them if I have a 3 year one and send it off. Fingers crossed then

[mxfun]

I've read some good things about Sigma sorting stuff out of warranty .Definitely give them a tinkle ,nowt to loose :shrug:

[kelack]

I tried ringing them earlier (5.15pm) but seems they work part time and finish at 5 pm :lol::lol::lol::lol:

Will have to remember to ring them in the morning