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galileo

Lens Correction built-in profile not recognised (DJI Mavic 2)

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When importing DNG RAW files from a DJI Mavic Drone, Affinity does not recognize the built- in lens profile for lens correction. The profile is there, Lightroom and other programs recognize and use it to correct distortion. The drone is the very well known Mavic 2, the profile name is DJI FC2204

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I don't think that the Serif Labs Raw Engine recognizes any embedded lens profiles, yet. It only uses profies from the lensfun database, as far as I know.


-- Walt

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I am pretty sure Affinity worked well with my previous Mavic Pro, now with Mavic 2 is unusable, it cannot work on a raw file, I have to switch back to Lightroom.

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Hello all,

I second that this lens needs to be prioritized quite high. It's been on the market for 15 months.... I would like to be able to tell other drone pilots they don't need to fork over monthly to Adobe but when the market leader drone in the prosumer market isn't supported 15 months after launch, then how do you guys expect that to happen?

 

please....

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has this issue been addressed yet as of march 22, 2020? If not is there another profile that would correct lens issues

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cdw86 - As of April 30th 2020: I have still yet to find a solution to the lens distortion captured by the FC2204 in RAW. There is nothing in the LensFun database for the Mavic 2 Zoom camera and as far as I am aware: there is nothing in Adobe's LCP catalogue either. Surprising really as photo's taken in JPG format clearly have lens correction applied to them before being  shunted to SD card - so an LCP obviously does exist and is used by the hardware. This is a GAPING ball-drop by the manufacturers in particular who should have all the details concerning lens characteristics to hand - they just continue to bury their heads in the sand and ignore requests for the information. Typical of DJI, I'm afraid: who like most manufacturers lose all interest in their customers once they have managed to get the money out of their bank accounts.

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40 minutes ago, Felix Le Chat said:

cdw86 - As of April 30th 2020: I have still yet to find a solution to the lens distortion captured by the FC2204 in RAW. There is nothing in the LensFun database for the Mavic 2 Zoom camera and as far as I am aware: there is nothing in Adobe's LCP catalogue either. Surprising really as photo's taken in JPG format clearly have lens correction applied to them before being  shunted to SD card - so an LCP obviously does exist and is used by the hardware. This is a GAPING ball-drop by the manufacturers in particular who should have all the details concerning lens characteristics to hand - they just continue to bury their heads in the sand and ignore requests for the information. Typical of DJI, I'm afraid: who like most manufacturers lose all interest in their customers once they have managed to get the money out of their bank accounts.

At Serif they shouldn't need to introduce a specific profile, they just would have to address properly the built-in profiles... 

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On 8/12/2019 at 5:51 AM, MEB said:

Hi galileo,
Welcome to Affinity Forums :)
We do support the DJI Mavic Pro but not the DJI Mavic 2 yet, sorry. We are constantly adding support for new cameras/lenses so there's hope it will be supported in an upcoming Photo build/update. Bear with us.

@MEB - any movement on this yet? it has been 8 months since your reply...

 

Thanks


David

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Posted (edited)

Dear all,

I have made a lens profile myself for DNG files of Mavic Air (1), using a milky white filter for vignetting, and pictures of buildings and parkings (from above) to correct lens distortions with Hugin (https://wilson.bronger.org/lens_calibration_tutorial/). It is a lot of work, but it resulted in a lens profile that is good to compensate lens distortion. It has been uploaded to the lensfun database and both Darktable and RawTherapee use it. It is a bit of work, but everyone can do it.

HOWEVER, the camera also produces a faint pinkish-yellowish spot in the middle, which is especially annoying in panoramas. That spot cannot be compensated in the lensfun database (at least I do not know how). It can be compensated, but unfortunately requires slight post-processing in Darktable/RawTherapee: Mavic Air photos are 4056x3040 pixels. One needs to draw a circular mask for colour correction in the middle ~2600 pixels large, smoothed edges (at least 700 pixels), filled with colour, in Darktherapee slightly towards blue/green blue. Save as TIF.

Adobe programmes do however use the embedded profile in DNG. The correction cannot be influenced by the user, but it corrects all above issues well, including the coloured spot. I truly hope that someone can develop a function that can apply a DNG embedded profile for the open source programmes. It should be possible, because DNG is an open format. Then all DJI DNG files would immediately be corrected, including upcoming ones.

 

Edited by Hate2register4oneReplyOnly
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On 8/12/2019 at 11:51 AM, MEB said:

Hi galileo,
Welcome to Affinity Forums :)
We do support the DJI Mavic Pro but not the DJI Mavic 2 yet, sorry. We are constantly adding support for new cameras/lenses so there's hope it will be supported in an upcoming Photo build/update. Bear with us.

Do we have any news from Serif on this important issue? DJI Drones are common and embeed profiles are now pretty much an industry standard

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