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Thread started 28 Jun 2008 (Saturday) 13:12
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Sigma 50mm f/1.4 EX DG HSM -SIGMALUX-

 
short_wave
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Feb 15, 2012 21:14 |  #7516

Jasper Ash wrote in post #13905015 (external link)
Just put the order through for mine on B&H. I bought new for piece of mind incase I get one of the bad copies. Can anyone suggest a good way to check the lens for focusing issues once I receive it?

Hey man! Fellow WFC member here. ;)

I got mine for Adorama for that same reason and I still have front focus issues. Instead of cluttering this thread up with my test shots, I created a new thread that shows how I'm testing.

https://photography-on-the.net …/showthread.php​?t=1149510

Hope you get a good copy man!


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Jasper ­ Ash
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Feb 15, 2012 23:48 |  #7517

Heyy!! I'll track your other thread. Hopefully you get things worked out! And hopefully I get a good copy! :D


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BananaRaw
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Feb 16, 2012 09:48 |  #7518

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mosesport
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Feb 16, 2012 13:05 |  #7519

UGH! Need some advice ASAP if anyone can help. My biggest fear was realized today. Got my 5D body in the mail today. Popped the Sigma 50 1.4 on. Took some test shots. This is a 100% crop at f1.4. Do I need to send the body AND lens into Canon for calibration, or do you think it's an issue with the lens specifically? I can post more samples if necessary. The focus was directly on the "burn" part of heartburn.


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h4ppydaze
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Feb 16, 2012 14:13 |  #7520

mosesport wrote in post #13909225 (external link)
UGH! Need some advice ASAP if anyone can help. My biggest fear was realized today. Got my 5D body in the mail today. Popped the Sigma 50 1.4 on. Took some test shots. This is a 100% crop at f1.4. Do I need to send the body AND lens into Canon for calibration, or do you think it's an issue with the lens specifically? I can post more samples if necessary. The focus was directly on the "burn" part of heartburn.


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I would suggest sending it in with body if you can live without your camera for a week and a half. Since the 5D has no microadjust (unless you're referring to the mkii) you'll have a much better chance of getting it perfectly calibrated sending it in with body. If you have the mkii, lens by itself should be fine.




  
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short_wave
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Feb 16, 2012 14:14 |  #7521

Can you micro adjust on the 5DC? If so try that first.

I have heard mixed answers on whether to send in the body. Some Sigma reps say yes others say it's not necessary. Sigma should have a 5DC they can test on if you just send in the lens.


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ktownhero
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Feb 16, 2012 14:14 |  #7522

mosesport wrote in post #13909225 (external link)
UGH! Need some advice ASAP if anyone can help. My biggest fear was realized today. Got my 5D body in the mail today. Popped the Sigma 50 1.4 on. Took some test shots. This is a 100% crop at f1.4. Do I need to send the body AND lens into Canon for calibration, or do you think it's an issue with the lens specifically? I can post more samples if necessary. The focus was directly on the "burn" part of heartburn.

Send it with your body, and send it to Sigma.. not Canon :P




  
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BryantFC
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Feb 16, 2012 15:18 |  #7523

ktownhero wrote in post #13909659 (external link)
Send it with your body, and send it to Sigma.. not Canon :P

Yes. This. Send it to sigma. Looks very soft. They should be able to fix it.


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Feb 16, 2012 18:41 |  #7524

If the one I'm trying out tomorrow performs well, I'll be adding it to my lens collection. Since it's in a retail store I should know right away. Hoping for the best.


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Feb 16, 2012 18:43 |  #7525

mosesport wrote in post #13909225 (external link)
UGH! Need some advice ASAP if anyone can help. My biggest fear was realized today. Got my 5D body in the mail today. Popped the Sigma 50 1.4 on. Took some test shots. This is a 100% crop at f1.4. Do I need to send the body AND lens into Canon for calibration, or do you think it's an issue with the lens specifically? I can post more samples if necessary. The focus was directly on the "burn" part of heartburn.

IMO, it's hard to tell from that picture. Light on the subject looks very poor, and looks like ISO is up (i.e. could be a problem of iso and hand shake). Can't see your EXIF data, so can't say. I recommend a shot in good light (shoot the same side of the object that the light is hitting, in a well lit room), with shutter speed and ISO both at 100. Shoot at your subject head on (you are hitting the surface of the bottle a bit from above and the side), and I think you will better be able to judge.


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benee
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Feb 16, 2012 19:52 |  #7526

Mookalafalas wrote in post #13911038 (external link)
IMO, it's hard to tell from that picture. Light on the subject looks very poor, and looks like ISO is up (i.e. could be a problem of iso and hand shake). Can't see your EXIF data, so can't say. I recommend a shot in good light (shoot the same side of the object that the light is hitting, in a well lit room), with shutter speed and ISO both at 100. Shoot at your subject head on (you are hitting the surface of the bottle a bit from above and the side), and I think you will better be able to judge.

Yes, take a few more test pics in good light. It does look like a focus problem to me, though. After a little more testing, you should send the body and lens into Sigma for calibration. My Siggy 50 was calibrated by Sigma to a 5D. It is ridonkulously sharp and accurate on my 5D classic.


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Feb 16, 2012 20:10 |  #7527

mosesport wrote in post #13909225 (external link)
UGH! Need some advice ASAP if anyone can help. My biggest fear was realized today. Got my 5D body in the mail today. Popped the Sigma 50 1.4 on. Took some test shots. This is a 100% crop at f1.4. Do I need to send the body AND lens into Canon for calibration, or do you think it's an issue with the lens specifically? I can post more samples if necessary. The focus was directly on the "burn" part of heartburn.


QUOTED IMAGE

Looks like you did your research: heartburn pills in your reach just in case you need it.

Have it sent to Sigma for calibration. Ideally with the camera body as each camera is different even within the same model.



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OrangeImaging
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Feb 16, 2012 20:18 |  #7528
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BryantFC wrote in post #13910003 (external link)
Yes. This. Send it to sigma. Looks very soft. They should be able to fix it.

This happened with my Sigma 30mm, took 2 1/2 weeks from DFW, but obviously worth it. It gave me an excuse to play with all my film cameras for a few weeks too!


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Winwin
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Feb 16, 2012 21:24 |  #7529

f/2


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mosesport
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Feb 16, 2012 21:59 |  #7530

Did some further testing, and it turns out it was a front-focusing issue. I've already processed the return through Amazon. I'm disappointed. It was this thread alone that sold me on the lens. Bummed out I got one of the bad copies. Rather than deal with the hassle of not having a camera for 2-3 weeks, I'm just getting my money back and looking elsewhere. I may grab this lens down the road again, but not until I have a camera body with AF micro-adjust. The manual focus is TACK SHARP! I've included a manual focus attachment just for kicks. http://www.flickr.com …6889685231/in/p​hotostream (external link)

I'll still be watching this thread like always. I love your guys' work!


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