Sony and Sigma lenses

yawny · 21 May 2011

Hi people....just wanted to find out off any Sony DSLR users if they use Sigma lenses and if they are ok on them.

The reason i ask this is because of the fault that became apparent on the Sigma 70-300 F4-5.6 and the gears stripping.

just wondered if any of the other Sigma lenses have the same problems as i am looking at some new ones.

Thanks in advance

Azure · 21 May 2011

Hi there John - I have a Sig10-20mm and it works without any probs. However, there is another thread going re Sigma's... will go see if I can find it

hold on...

here ya go...

http://www.talkphotography.co.uk/forums/showthread.php?t=259087&page=13

might be worth posting your question (or a link) on that thread as it prolly has a few subscribers who may be able to give you some more information.

yawny · 21 May 2011

thats great thanks for that

srichards · 21 May 2011

I keep hearing about gear stripping but there doesn't seem to be many people it has actually happened to. I've had sigma lenses for ages. Both mine are 10 years old and haven't been eaten yet. But I'm not using them on the A700 or the A850 or a900 on the faster AF settings. I think if there were any problems they've probably been ironed out even though sony blame sigma for the issue and sigma blame sony.

There's a good round up of it here:

http://www.dynaxdigital.com/sony-alpha-200-230-discussion/sigma-70-300-apo-dg-gear-stripping/

yawny · 27 May 2011

thanks for the info......i only ask because it happened to mine. Had the 70 - 300 sigma on the A450 and i know of two others, one on the A100 and one on the A700.

yawny · 27 May 2011

think ill just take the risk as were covered under the sales of goods act anyway for 6 years so it can always go back.

Thanks for the info people

srichards · 27 May 2011

New sigma lenses come with their 3 year warranty now so sigma should sort it for the first 3

As it hasn't happened to everyone with every sigma lens then it does suggest that it is build quality of particular lenses that is the issue when coupled with the power of some sony AF motors. I think you can ask a sony to turn down the power of the motors if they are causing problems.

neil_g · 27 May 2011

remeber you have to register for the 3 years if i remember rightly

yawny · 28 May 2011

regardless of any warranty people...remember your covered for up to six years under the sales of goods act.
And it isnt sigmas problem......its the seller ie...jessops. if ther product isnt fit for purpose the seller sorts it.