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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 14 May 2012 (Monday) 13:58
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POLL: "exchange again or get calibrated"
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another Sigma 30mm focus thread...n

 
JNowakPhoto
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May 14, 2012 13:58 |  #1

So I'm getting ready to ship the 2nd copy I got from Amazon back. What do you guys think? Ship it back for an exchange or just drop it off at Sigma for calibration. I do have a local Sigma repair 20 miles from home.


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mannetti21
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May 14, 2012 14:28 |  #2

Kind of depends what the issue is...if its simply front or back focusing, and you have micro adjust on your camera, then fix it yourself. If its an issue where the focus is very inconsistent, I'd opt for the exchange. With that said, I went through 3 Sigma 30's and found 2 of the 3 to be significantly inconsistent with focus, and the 3rd was somewhat consistently front focusing and needing adjustments between +13 to +17.

So I decided to give up the 2/3rd stop of light and get the Canon alternative since I just couldn't find a reliable copy of the Sigma 30.



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JNowakPhoto
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May 14, 2012 15:49 as a reply to  @ mannetti21's post |  #3

Yeah, front focus. I have a 40D so no MA option...


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dohan_appa
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May 14, 2012 17:34 |  #4

I went through two copies of Sigma 30mm myself and decided to just ship my camera along with the lens for calibration. Both were front focusing. You should definitely take advantage if you live so close to their service center.

BTW, after calibration my copy is now very sharp wide open.


Steve

  
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Charlie
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May 14, 2012 17:58 |  #5

get it calibrated since you live so close. You might consider doing it in person to get fast service.


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Raymate
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May 14, 2012 19:42 |  #6

I was lucky with mine it was spot on, but my 10-20mm Sig had to be calibrated but that now is spot on.

Send it in


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JNowakPhoto
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May 14, 2012 20:40 |  #7

Anyone have any experience with Bigston Corp in Elk Grove Village, IL? Its listed on Sigma's site as an authorized repair service. It's local for me or should I play it safe and send to NY?


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vrjosh
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May 14, 2012 21:50 |  #8

Whatever you do, be persistent until you get a good copy. I tried the Sigma 30mm roulette a few years ago and gave up, only to try again last year with great results. Now it's one of my favorite lenses, absolutely fantastic.


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JNowakPhoto
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May 15, 2012 12:57 |  #9

Found out Amazon would only do a return not exchange on the second copy which could take up to 15 days. Ended up dropping off the lens and body off at the service center. Fingers crossed.


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JNowakPhoto
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May 15, 2012 18:32 |  #10

OK so I just received a call that its ready to be picked up. Hmmm in one day..... gonna go pick it up tomorrow. Hope it's fixed.


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Davivascaino
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May 15, 2012 19:31 |  #11

where did you find the sigma repair locations? I could not find on the website. I am in Phily


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JNowakPhoto
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May 15, 2012 21:05 |  #12

http://www.sigmaphoto.​com/service-support (external link)


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highergr0und
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May 15, 2012 21:18 |  #13

Yeah, amazon doesn't mess around with more than one extra copy..... If you need to ship it to NYC, ask amazon support for a credit to cover shipping costs. They ought to do that.


T3i, Sigma 10-20, Sigma 30 1.4, 18-55 kit, 55-250, YN-565, a few books, some software, and a desire to get good.....

  
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Judsonzhao
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May 16, 2012 00:18 |  #14

Im in a strangesituation
My siggy 30 worked so good with my t2i that i once believe i saved so much rather than getting a 35l
But when i go to 50D, it seems to have focus issue.and even at 2.8 i got purple edges..
So weird...


Fly me away.

  
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pv94
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May 16, 2012 01:23 |  #15

I live about 20min drive away from the Sigma service centre in Sydney.
I brought my 30 1.4 ex, they send it to Melbourne and it was back within about a week. It works perfectly now.
Cheers
Patrick




  
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another Sigma 30mm focus thread...n
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