Camera Raw/Lightroom: Upright does not work with Sigma 35mm f1.4

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  • Updated 3 years ago
  • (Edited)
Lightroom 5.7

Equipment I use is:

Nikon D800E
Sigma 35mm f1.4 Art series
Tamron 24-70 f2.8
Nikon 70-200 f4

I shoot raw

The problem is when I use Sigma 35mm, Lightroom auto upright function tilts ALL photos too much to the right. The profile is correct (Sigma 35mm f1.4). The attached image shows what it does when I click auto upright.

It works correctly with Tamron 24-70 and Nikon 70-200.

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ERTAN PATIR

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Posted 3 years ago

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Chris Castleberry, Camera Raw Engineer

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Hi Ertan,

Would it be possible for you to post a sample raw image of the same scene for the SIGMA and one or both of the other lenses for us to review internally?

It doesn't have to be the image above, just one scene made with each lens where you can reproduce the behavior you describe.

You can post it to dropbox or another service and send a link to ccastleb@adobe.com.

Thanks,

- Chris
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ERTAN PATIR

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Hi Chris,

Thanks for the answer, I will do it. Might take a few days as I will be a away.
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ERTAN PATIR

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Hi Chris,

In another forum they said it is tilting the photos to make the bridge horizontal, not the water line. Thinking about it, they might be right.

I panicked when all photos tilted like this, but they all had all or part of the bridge showing.
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Chris Castleberry, Camera Raw Engineer

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Thanks for following up, Ertan.

It may be that the upright tool favors the bridge in the above image given its uniformity over the hilly horizon. It is also just a bit more prominent than the waterline below it. However, if you can reproduce vastly different results with a common scene between the three lenses at the same (35mm) focal length, I would be interested in investigating in case there is something we could do to improve the accuracy of the upright tool. 

Regards,

- Chris
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ERTAN PATIR

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I will do it. But of them is 70-200. That'll be at 70mm.
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ERTAN PATIR

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Hi again,

I took two photos each with three lenses. Sigma 35mm, Tamron 24-70 at 35mm and Nikon 70-200 at 70mm.

I used a tripod and deliberately tilted the camera. The upright tool works differently for Sigma 35mm and Tamron 24-70 at 35mm. 70-200 correction is similar to Tamron.

You can access raw files at:

http://www.masatenisi.org/upright/
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Chris Castleberry, Camera Raw Engineer

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Thanks, Ertan.

I didn't see the samples from the 24-70 at 35mm. Would you please upload them as well.

Thanks!
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ERTAN PATIR

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Sorry my mistake. I uploaded one of them. The second one is uploading very slowly.
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ERTAN PATIR

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Hello Chris,

I've aded another photo, ERT_8942.NEF

Please have a look at it. The result of upright tool doesn't look right to me..
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Steve Sprengel, Champion

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For ERT_8942.NEF in ACR 8.7.1, the Upright - Auto correction seems relatively perfect to me:


And even the Upright - Full correction seems correct given what it is doing, which is making the horizontal lines of the righthand building parallel:


Are you seeing something else when you try it, or do the corrections, shown above, not seem right and you're expecting other things to be corrected?
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ERTAN PATIR

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I feel it tilts too much too the right when correcting. After correction I change to manual and check it. I think it needs to be tilted left a bit. I might be wrong but that's how it feels to me.