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View Full Version : sigma 105mm macro problem

Darkmage
28-06-2009, 08:35
Hi guys was out with my macro lens yesterday and all was fine, and then went to take another shot and now the autofocus makes a horrible screeching sound whenever the front extends. If I focus completely manually, or mostly manual and then switch to auto for the last tad of focus all is fine, otherwise my camera makes a horrible racket.

What should I do?
puddleduck
28-06-2009, 08:50
What should I do?

I might be going out on a limb with this one, but sending in for repair might be the best option?
Darkmage
28-06-2009, 08:51
I might be going out on a limb with this one, but sending in for repair might be the best option?

Yup sorry guess I should've been more specific, its a 2nd hand lens so do I just call up Sigma and explain and then they charge me almost the cost of a new lens to try and fix it?
puddleduck
28-06-2009, 08:55
http://www.sigma-imaging-uk.com/support/service-tariff.htm

Looks like £73.39 for your lens.

If its a Sigma UK lens, you might get a nice suprise on how reasonable they can be.
Strangways
28-06-2009, 08:56
They give you a price on their web site for a service!
stan the man
28-06-2009, 17:05
it sounds like the gears have gone...happened to mine a year ago.

your not a sony user per chance?sony's motor is so strong,the cameras are known to make light work of the sigma gears.
Darkmage
28-06-2009, 17:32
it sounds like the gears have gone...happened to mine a year ago.

your not a sony user per chance?sony's motor is so strong,the cameras are known to make light work of the sigma gears.

350D mate, how much did it cost you to get yours fixed? also what's then turn around like? Bit dissapointed as I've only had it myself a month or 2.
stan the man
28-06-2009, 17:40
350D mate, how much did it cost you to get yours fixed? also what's then turn around like? Bit dissapointed as I've only had it myself a month or 2.

i didn't have to pay as it was under warranty,but it took approx 3 weeks from posting to sigma UK to getting it back.

here's their price tarrif....

http://www.sigma-imaging-uk.com/support/tarrifs.pdf

hope this helps :thumbs:
Darkmage
28-06-2009, 17:41
hmm I'm on hols in a couple of week so I'll guess I'll just have to stick with manual focus, and then send it off when I get back. Cheers for the info guys.
tikkathreebarrel
28-06-2009, 17:43
hmm I'm on hols in a couple of week so I'll guess I'll just have to stick with manual focus, and then send it off when I get back. Cheers for the info guys.

And in two weeks' time I reckon you won't think about AF - apart from getting the lens put right that is!

I use mine mostly now on MF - but then it's 95% used with a tripod.
Darkmage
03-07-2009, 13:20
Well I've just spoken to the guy I bought the lens off and apparently sigma replaced the AF motor earlier this year, so hopefully it should still be under warranty, waiting to hear more atm.