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Sloppy Sigma 18-125


julzt 8 181 England
2 Feb 2007 3:48AM
Hi

I have a sigma 18-125 and it performs realatively well.

Howeve I have a major complaint - the zoom barrel slips in and out really easily. For example if the camera is around my neck the lense will slip out to 125mm within miliseconds.

Can anyone tell me if this is the deal with this particular lense or is it just my one. If so, can this be recitified??? (is it a professional job or one done by me???)

Jules

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cameracat 11 8.6k 61 Norfolk Island
2 Feb 2007 8:04AM
This phenomina is called " Zoom Creep ".

To some extent a relativley new lens should not be affected that much.

However budget lens do tend to suffer this problem.

If you feel it is excessive, You could try contacting Sigma by phone, they may offer a fix for that particular model, And it might even be free (except postage)

Worth a try though, If you want to rid yourself of the problem the only answer is to buy expensive lens.
IanA 11 3.0k 12 England
2 Feb 2007 8:24AM
It can be tightened by Sigma. If it creeps when the camera is at 45 degrees, they will do it FOC normally.
HIH

Ian
Kris_Dutson 12 8.2k 1 England
2 Feb 2007 8:41AM
You'll find it has a lock button on the side to stop it doing this. Rather a nifty idea if you ask me.

Wink
cameracat 11 8.6k 61 Norfolk Island
2 Feb 2007 12:24PM

Quote:You'll find it has a lock button on the side to stop it doing this


Your probably right, Silly me wuz thinking of the 28 to 135.

( Dunce Eh!)

Vince
Paulbee e2
10 36 United Kingdom
2 Feb 2007 4:55PM
I've also had this problem, never thought to use the lock button. Glad I saw this thread now. (I must be a slow learner).
sooty 36 10 14 United Kingdom
2 Feb 2007 6:01PM
I have recently bought the sigma 18-200mm and it has a lock on it. So I`m assuming it`s sigma thing! and to combat it the easy option is to put a lock on it, rather than re-design the mechanism in the barrel, because I have a simlar Tamron lens and that doesn`t suffer with that problem.
Chris
julzt 8 181 England
5 Feb 2007 12:58AM
hi - yes the lock is a great additional. it works great when the lense is at 15mm but doesnt lock the lense at any other distance...! I will contact sigma asap as I think my lense creep is more than other models...
Thanks for your help.

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