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mike_smith_4yb9kkav0hyph's profile
mike_smith_4yb9kkav0hyph
100 Points

4 Messages

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100 Points

Tue, Sep 10, 2019 7:37 PM

Lightroom/Camera Raw: Lens profile for Sigma DG ART 50 mm 1.4 Canon

I can’t find a Lightroom lens profile for this lens. It is not listed but how can I either make one now that the Adobe creator is no longer available or would there be anywhere else to get one

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Updated 

2 y ago

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Rikk

Adobe Administrator

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10.6K Messages

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140.4K Points

2 y ago

The Creator is still available. The Downloader is not:
https://helpx.adobe.com/photoshop/digital-negative.html#resources

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michael_smith_4919994

6 Messages

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136 Points

2 y ago

Many thanks

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JohnMacLeanPhoto

161 Messages

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2.6K Points

2 y ago

I still see the profile. Did Adobe remove it somehow?

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mike_smith_4yb9kkav0hyph

4 Messages

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100 Points

These are the only Signs lenses listed. Is yours an ART lens ? I have a 12-24  non art which is listed and is OK

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2 y ago

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Rikk

Adobe Administrator

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10.6K Messages

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2 y ago

OP may be looking at a JPG instead of a raw. The Profile is file-specific.

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mike_smith_4yb9kkav0hyph

4 Messages

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100 Points

2 y ago

Yes I have been looking at jpeg. I will try RAW

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mike_smith_4yb9kkav0hyph

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100 Points

2 y ago


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todd_shaner_6660895

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38.8K Points

2 y ago

Those are the lens profiles available for non-raw files (JPEG, TIFF). Select a CR2 raw file and you will see three different model Sigma DG HSM 50 mm 1.4 lenses listed.


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michael_smith_4919994

6 Messages

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136 Points

2 y ago

Hi Thanks I have now tried raw and it's there as you mentioned. It's interesting that profiles for canon lenses are available for jpeg files. What's the reason behind this? I mainly use jpeg 

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todd_shaner_6660895

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For JPEGs most current Canon cameras have the ability to correct distortion, vignetting, and in some also chromatic aberration. Not sure this is applied when using non-Canon lenses such as the mentioned Sigma lens.

When shooting with Canon lenses the LR JPEG profiles allow you to turn off those corrections in-camera and then choose the 'Amount' of Distortion and Vignetting correction desired. I generally apply Amount 0 Distortion and 50-75 Vignetting. There's lots' of reasons to NOT fully correct these aberrations. Example: https://forums.adobe.com/message/5655995#5655995

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2 y ago

michael_smith_4919994

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136 Points

My EOS R does indeed have Lens Aberration correction and my lens is recognised. I have peripheral illumination& Distortion correction on but digital lens optimiser says cannot correct-no data As you probably can tell I am new to all this !

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2 y ago

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todd_shaner_6660895

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The Canon EOS R uses "built-in" lens profiles. It's possible the lens and perhaps camera need a firmware update.

https://www.diyphotography.net/sigma-adds-canon-lens-aberration-correction-and-nikon-bug-fixes-with-...

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2 y ago

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