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I have (one) client who sends me DBG files occasionally and this time I noticed chromic aberration on the white areas which makes the file unusable. I opened the DNG in Photoshop and it looked perfect, so I exported it from there to tif for the project. Is DNG a bit buggy in Photo? 

DNGbug.jpg

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That looks more like a misaligned set of channels (RGB), or is this just a tiny corner of a much larger file.


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1 hour ago, nomi02118 said:

It doesn't happen in photoshop, so I thought there might be something about the AP DNG import. 

Well DNG was developed by Adobe so I would expect them to do the best job. I had to search for a while but I did finally find a DNG with some  Chromatic Aberrations off in a corner and Photo did a very good job clearing it up, the problem with the one from your client looks extreme and I am amazed that Photoshop can do anything with it.


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Try running the remove Chromatic Aberrations filter 2 or 3 times, it should be able to clear this up. Extreme cases need more than one pass of the filter. It looks like the problem originated in camera rather than the DNG.

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I used photoshop to open the dng without any problems, then exported to tif for use in photo. I am just concerned in future, i wont have a working version of photoshop to use as a backup. I guess it could have been a problem with the camera, but knowing this client, it seems unlikely. He is the only person i know who uses the format at all. Its not a bad idea, just almost no one seems to have adopted it in the end. 

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30 minutes ago, Murfee said:

It looks like the problem originated in camera

<PEDANT MODE> Actually it would be a lens problem. </PEDANT MODE>


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4 minutes ago, Old Bruce said:

<PEDANT MODE> Actually it would be a lens problem. </PEDANT MODE>

Ha ha.... agreed, I have had a very long and stressful day :)

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3 hours ago, Chris B said:

Hey nomi02118,

Can you upload the image to this private Dropbox folder please?

Uploading it now, the white flowers on the far right are where etc problem shows up the most. 

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Hey nomi02118,

Thanks for the image. I've applied a few Chromatic Aberration filters but it still isn't really up to scratch. I'll log it with the developers to see if there's anything we could do in the future to improve this. 

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I did that as well, sadly I had to open it photoshop to make it work and it opened with no problems. I don't have to work with DNG often, but when I do its for a client so I hope this gets sorted out!  Thanks! 

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Hi nomi02118

The file is a panorama merged in Lightroom but we are treating it as an out-of-camera RAW file and applying lens profile corrections when we shouldn't. As a work around, in Develop go to the 'Lens' page and turn off chromatic aberration correction and the other lens profile corrections.

Hope that helps

Justin 

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25 minutes ago, Justin said:

Hi nomi02118

The file is a panorama merged in Lightroom but we are treating it as an out-of-camera RAW file and applying lens profile corrections when we shouldn't. As a work around, in Develop go to the 'Lens' page and turn off chromatic aberration correction and the other lens profile corrections.

Hope that helps

Justin 

Sorry I guess I forget to mention it is a panorama. I did try and the chromic aberration adjustment but it didn't work out. (Chris B earlier found the same  thing.)  Might be just this file so i will keep an eye out if I get another form this client. 

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