Opening RAW file Affinity Photo results in "burnt" corners on photo

[WalterS 0]

Opening a Canon (.cr2) RAW file (ISO 500) in Affinity Photo (V 1.6.7) results in corners that appear to be burnt out, as though by a bright lamp. The corners are black and then there's a bright white line that bleeds into the photo a bit. This is on an iMac running Mojave 10.14. It doesn't happen with every file. I can't predict when it will happen. The "burnt out" corners only appear when loaded into Affinity. They are not present when the file is viewed in Finder. It persists when I press Develop and are also there after I export to .jpeg.

Any help would be greatly appreciated.

[anon2 898]

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[WalterS 0]

This is the RAW file in question.

IMG_0062.CR2

[HVDB Photography 271]

Same issue in RawTherapee 

I think it's related to the wide angle  8.8-36.8 mm lens !!

You'll need to apply a lens correction

[anon2 898]

 

 

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[R C-R 3,541]

2 hours ago, >|< said:

AP 1.7 beta using Serif raw engine does the lens correction correctly.

I wonder if that is because in the beta the lens info includes "Unknown" but in the retail version it does not?

[v_kyr 1,299]

There might be better lens calibration data now available in an also more up to date lensfun database versions and so also a better distingushing between the Canon G7 (X) models ...

Quote

<lens>

<maker>Canon</maker>

<model>Canon PowerShot G7 &amp; compatibles (Standard)</model>

<model lang="en">fixed lens</model>

<mount>canonG7</mount>

<cropfactor>4.843</cropfactor>

<calibration>

<distortion model="ptlens" focal="7.4" a="0.01524" b="-0.04187" c="0"/>

<distortion model="ptlens" focal="8.2" a="0.02388" b="-0.05622" c="0"/>

<distortion model="ptlens" focal="9.03" a="0.02001" b="-0.04515" c="0"/>

<distortion model="ptlens" focal="9.86" a="0.01247" b="-0.02718" c="0"/>

<distortion model="ptlens" focal="10.67" a="0.01247" b="-0.02718" c="0"/>

<distortion model="ptlens" focal="12.73" a="0" b="-0.0004" c="0"/>

<distortion model="ptlens" focal="14.78" a="0" b="0.00042" c="0"/>

<distortion model="ptlens" focal="16.82" a="0" b="0.00021" c="0"/>

<distortion model="ptlens" focal="21.92" a="0" b="0.00107" c="0"/>

<distortion model="ptlens" focal="29.16" a="0" b="0.00078" c="0"/>

<distortion model="ptlens" focal="36.8" a="0" b="0.00298" c="0"/>

<distortion model="ptlens" focal="44.4" a="0" b="0.00672" c="0"/>

</calibration>

</lens>

<lens>

<maker>Canon</maker>

<model>Canon G7 X &amp; compatibles</model>

<model lang="en">fixed lens</model>

<model lang="de">festes Objektiv</model>

<mount>canonG7X</mount>

<cropfactor>2.72</cropfactor>

<aspect-ratio>3:2</aspect-ratio>

<calibration>

<distortion model="ptlens" focal="8.8" a="0.03872" b="-0.15563" c="0.02544"/>

<distortion model="ptlens" focal="10.2" a="0.02069" b="-0.08948" c="-0.00758"/>

<distortion model="ptlens" focal="12.8" a="0.00157" b="-0.01787" c="-0.04424"/>

<distortion model="ptlens" focal="18.1" a="0" b="-0.01038" c="0"/>

<distortion model="ptlens" focal="31" a="0" b="0.00302" c="0"/>

<distortion model="ptlens" focal="36.8" a="0" b="0.00625" c="0"/>

<tca model="poly3" focal="8.8" br="-0.0005162" vr="1.0016034" bb="0.0004383" vb="0.9993909"/>

<tca model="poly3" focal="11.5" br="-0.0002728" vr="1.0011909" bb="0.0002069" vb="0.9996313"/>

<tca model="poly3" focal="14.2" br="-0.0001588" vr="1.0008252" bb="0.0001122" vb="0.9998027"/>

<tca model="poly3" focal="18.4" br="-0.0001077" vr="1.0004530" bb="0.0000610" vb="0.9999249"/>

<tca model="poly3" focal="25.2" br="-0.0000678" vr="1.0001331" bb="0.0000333" vb="0.9999687"/>

<tca model="poly3" focal="36.8" br="-0.0000631" vr="0.9998836" bb="0.0000158" vb="0.9999238"/>

<vignetting model="pa" focal="8.8" aperture="1.8" distance="10" k1="-0.2553" k2="-0.1170" k3="-0.7056"/>

<vignetting model="pa" focal="8.8" aperture="1.8" distance="1000" k1="-0.2553" k2="-0.1170" k3="-0.7056"/>

<vignetting model="pa" focal="8.8" aperture="2.5" distance="10" k1="0.0116" k2="-0.3654" k3="-0.7260"/>

<vignetting model="pa" focal="8.8" aperture="2.5" distance="1000" k1="0.0116" k2="-0.3654" k3="-0.7260"/>

<vignetting model="pa" focal="8.8" aperture="3.5" distance="10" k1="-0.0396" k2="-0.0536" k3="-0.9917"/>

<vignetting model="pa" focal="8.8" aperture="3.5" distance="1000" k1="-0.0396" k2="-0.0536" k3="-0.9917"/>

<vignetting model="pa" focal="8.8" aperture="5" distance="10" k1="-0.2345" k2="0.8117" k3="-1.6607"/>

<vignetting model="pa" focal="8.8" aperture="5" distance="1000" k1="-0.2345" k2="0.8117" k3="-1.6607"/>

<vignetting model="pa" focal="8.8" aperture="11" distance="10" k1="-0.3502" k2="1.3201" k3="-2.0550"/>

<vignetting model="pa" focal="8.8" aperture="11" distance="1000" k1="-0.3502" k2="1.3201" k3="-2.0550"/>

<vignetting model="pa" focal="12.2" aperture="2.2" distance="10" k1="-0.9433" k2="1.5959" k3="-1.1783"/>

<vignetting model="pa" focal="12.2" aperture="2.2" distance="1000" k1="-0.9433" k2="1.5959" k3="-1.1783"/>

<vignetting model="pa" focal="12.2" aperture="3.2" distance="10" k1="-0.0705" k2="-0.0631" k3="-0.2402"/>

<vignetting model="pa" focal="12.2" aperture="3.2" distance="1000" k1="-0.0705" k2="-0.0631" k3="-0.2402"/>

<vignetting model="pa" focal="12.2" aperture="4.5" distance="10" k1="-0.3210" k2="0.6479" k3="-0.6690"/>

<vignetting model="pa" focal="12.2" aperture="4.5" distance="1000" k1="-0.3210" k2="0.6479" k3="-0.6690"/>

<vignetting model="pa" focal="12.2" aperture="6.3" distance="10" k1="-0.3130" k2="0.5326" k3="-0.4661"/>

<vignetting model="pa" focal="12.2" aperture="6.3" distance="1000" k1="-0.3130" k2="0.5326" k3="-0.4661"/>

<vignetting model="pa" focal="12.2" aperture="9" distance="10" k1="-0.2301" k2="0.2070" k3="-0.1677"/>

<vignetting model="pa" focal="12.2" aperture="9" distance="1000" k1="-0.2301" k2="0.2070" k3="-0.1677"/>

<vignetting model="pa" focal="12.2" aperture="11" distance="10" k1="-0.2130" k2="0.1342" k3="-0.0993"/>

<vignetting model="pa" focal="12.2" aperture="11" distance="1000" k1="-0.2130" k2="0.1342" k3="-0.0993"/>

<vignetting model="pa" focal="16.8" aperture="2.5" distance="10" k1="-0.5504" k2="0.5311" k3="-0.3166"/>

<vignetting model="pa" focal="16.8" aperture="2.5" distance="1000" k1="-0.5504" k2="0.5311" k3="-0.3166"/>

<vignetting model="pa" focal="16.8" aperture="3.5" distance="10" k1="-0.0703" k2="-0.1104" k3="-0.1004"/>

<vignetting model="pa" focal="16.8" aperture="3.5" distance="1000" k1="-0.0703" k2="-0.1104" k3="-0.1004"/>

<vignetting model="pa" focal="16.8" aperture="5" distance="10" k1="-0.2687" k2="0.5568" k3="-0.4949"/>

<vignetting model="pa" focal="16.8" aperture="5" distance="1000" k1="-0.2687" k2="0.5568" k3="-0.4949"/>

<vignetting model="pa" focal="16.8" aperture="7.1" distance="10" k1="-0.2001" k2="0.2552" k3="-0.1775"/>

<vignetting model="pa" focal="16.8" aperture="7.1" distance="1000" k1="-0.2001" k2="0.2552" k3="-0.1775"/>

<vignetting model="pa" focal="16.8" aperture="10" distance="10" k1="-0.1708" k2="0.1409" k3="-0.0725"/>

<vignetting model="pa" focal="16.8" aperture="10" distance="1000" k1="-0.1708" k2="0.1409" k3="-0.0725"/>

<vignetting model="pa" focal="16.8" aperture="11" distance="10" k1="-0.1797" k2="0.1623" k3="-0.0873"/>

<vignetting model="pa" focal="16.8" aperture="11" distance="1000" k1="-0.1797" k2="0.1623" k3="-0.0873"/>

<vignetting model="pa" focal="23.4" aperture="2.8" distance="10" k1="-0.3289" k2="0.9280" k3="-0.8241"/>

<vignetting model="pa" focal="23.4" aperture="2.8" distance="1000" k1="-0.3289" k2="0.9280" k3="-0.8241"/>

<vignetting model="pa" focal="23.4" aperture="4" distance="10" k1="-0.1598" k2="0.2689" k3="-0.2806"/>

<vignetting model="pa" focal="23.4" aperture="4" distance="1000" k1="-0.1598" k2="0.2689" k3="-0.2806"/>

<vignetting model="pa" focal="23.4" aperture="5.6" distance="10" k1="-0.1551" k2="0.1893" k3="-0.1145"/>

<vignetting model="pa" focal="23.4" aperture="5.6" distance="1000" k1="-0.1551" k2="0.1893" k3="-0.1145"/>

<vignetting model="pa" focal="23.4" aperture="8" distance="10" k1="-0.1492" k2="0.1581" k3="-0.0767"/>

<vignetting model="pa" focal="23.4" aperture="8" distance="1000" k1="-0.1492" k2="0.1581" k3="-0.0767"/>

<vignetting model="pa" focal="23.4" aperture="11" distance="10" k1="-0.1533" k2="0.1661" k3="-0.0794"/>

<vignetting model="pa" focal="23.4" aperture="11" distance="1000" k1="-0.1533" k2="0.1661" k3="-0.0794"/>

<vignetting model="pa" focal="36.8" aperture="2.8" distance="10" k1="-0.1704" k2="-0.2258" k3="0.0705"/>

<vignetting model="pa" focal="36.8" aperture="2.8" distance="1000" k1="-0.1704" k2="-0.2258" k3="0.0705"/>

<vignetting model="pa" focal="36.8" aperture="4" distance="10" k1="-0.1958" k2="0.4549" k3="-0.4959"/>

<vignetting model="pa" focal="36.8" aperture="4" distance="1000" k1="-0.1958" k2="0.4549" k3="-0.4959"/>

<vignetting model="pa" focal="36.8" aperture="5.6" distance="10" k1="-0.2475" k2="0.3334" k3="-0.2460"/>

<vignetting model="pa" focal="36.8" aperture="5.6" distance="1000" k1="-0.2475" k2="0.3334" k3="-0.2460"/>

<vignetting model="pa" focal="36.8" aperture="8" distance="10" k1="-0.1842" k2="0.0868" k3="-0.0198"/>

<vignetting model="pa" focal="36.8" aperture="8" distance="1000" k1="-0.1842" k2="0.0868" k3="-0.0198"/>

<vignetting model="pa" focal="36.8" aperture="11" distance="10" k1="-0.1869" k2="0.0890" k3="-0.0178"/>

<vignetting model="pa" focal="36.8" aperture="11" distance="1000" k1="-0.1869" k2="0.0890" k3="-0.0178"/>

</calibration>

</lens>

 

See also the related here:  compact-canon.xml

 

[anon2 898]

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[anon2 898]

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[R C-R 3,541]

30 minutes ago, >|< said:

The beta is doing good lens correction despite the word "Unknown".

Which seems counterintuitive, at least to me.

[WalterS 0]

Thank you all so much for your input. Switching the raw engine to Apple in the Develop Assistant does the trick. Thanks again!