jerryway
lvl.4
Flight distance : 4031483 ft
United States
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CloudVisual Posted at 5-16 06:23
The image I've posted doesn't have any lens corrections applied, this is what I get when I put a RAW file into LR. I was just explaining that the Phantom one seems to be about right.
If there's a profile baked in, why isn't it applying to the image?
I had similar discussion with DJI's tech support in their official user forum in China, and the followings are what I learnt.
1) You don't get RAW files from Mavic 3's main camera. What you get are DNG files, which is Adobe's proprietary image standard, created to store image data in a generic, highly-compatible format, unlike RAW files that have specific formats based on manufacturer and camera type.
2) DJI worked with Adobe to write a specific file header into Mavic 3's DNG file, and it contains information to tell Adobe's post-processing tool (i.e., Camera Raw) to apply certain post-processing operations (including but not limited to corrections for distortion, chromatic aberration, & vignetting). This approach essentially "baked" a lens profile into every Mavic 3 DNG file, which is automatically applied, when you open DNG files in Adobe Lightroom. You can not turn off this baked lens profile during the file opening operation.
3) The bending horizon in your image simply means DJI's distortion correction algorithm is not perfect, and you have to do some manual modification after the file import.
4) There is a dark reason why DJI is using this approach, instead of adding a separate lens profile for Mavic 3 main camera, but I am not going to elaborate on that yet. |
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