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10-24-2010, 03:05 PM   #1
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sigma 8-16 problems?

Hi, is there anyone who have sigma 8-16 and encounter problem in auto focus? Just got mine, but seems like auto focus is not working. Tested on k20d and kx, no focus. manual only. Best regards.

10-24-2010, 07:03 PM   #2
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OK I just got my lens to but I will take a SWAG at this.

First is the switch in manual or auto focus?

Next I have seen that 1 because it is a little slower then some lenses it likes a little more light and 2 because it is so wide it needs a good target to focus on.

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10-25-2010, 01:01 AM   #3
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yes. i know all about technical stuff, and do run tests systematically. auto focus is dead. the lens makes some very low noise 4-5 hz on auto focus, but not focus at all.

in spite of electronic malfunction, this lens performs perfectly regarding image quality. guess that i have to go through all paper work to get a new copy. i m just concern about quality control of sigma.

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10-25-2010, 05:36 AM   #4
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Sorry then, can’t help you. So far I have had no problems with the lens.

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10-25-2010, 06:44 AM   #5
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QuoteOriginally posted by hoanpham Quote
Hi, is there anyone who have sigma 8-16 and encounter problem in auto focus? Just got mine, but seems like auto focus is not working. Tested on k20d and kx, no focus. manual only. Best regards.
Hoanpham,

Sorry to hear about the AF problem & hope you have better luck next time. I've been thinking of buying this lens. Apart from the admittedly discouraging problem you've had, are you happy with the results you're getting?
10-26-2010, 08:23 PM   #6
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Thanks Daz.
I have contacted Abes of Maine to exchange another copy of the lens.

Update:
I think I got the grey item, store guarantee and valid within US only. Just returned the lens.

Can someone recommend where I can buy this lens in US with international guarantee?
Can it be done or do I have to buy the lens from the destination country, in this case in Norway?

Update:
Got Sigma confirmation: Buy the lens with international guarantee 1 yr. Repair will be covered locally if you send the lens as a gift to other countries.

Last edited by hoanpham; 11-24-2010 at 05:08 AM. Reason: Update
11-20-2010, 08:14 AM   #7
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I just got this lens last night and mine seems fine. No exhaustive tests but the AF is definitely working.
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