Panoramic slight fisheye in Lightroom

[Star City SkyCams]

Coming from my workhourse Phantom 4 Pro, I'm loving the Air 2S! When I go to edit 9 shot panoramics in lightroom, however, the photos have a slight fisheye effect to them. Is there a lens correction profile in Lightroom that'll fix this? The P4P NEVER had any of these issues. Anyone else notice this? See the mountains in the background? The P4P would never do this.

 

[sarimento1]

welcome to the forum, Sir Star City SkyCams!
and congrats on your new Air2S!
nice shot!
is the attached photo, a single shot or the resulting stitched pano?

 

[Star City SkyCams]

This is the stitched photo. Thanks!

 

[sarimento1]

ok.
what projection type was used?
looks to me it was spherical.
i've been having problems getting lightroom to run a perspective projection with images from the air2s pano burst, which would otherwise keep the horizon straight.
so, i'll often use photoshop or microsoft ice to do panos with the air2s.
somehow, did not have this issue with the mini2.
maybe someone else has a better solution.

 

[Meta4]

Coming from my workhourse Phantom 4 Pro, I'm loving the Air 2S! When I go to edit 9 shot panoramics in lightroom, however, the photos have a slight fisheye effect to them. Is there a lens correction profile in Lightroom that'll fix this? The P4P NEVER had any of these issues. Anyone else notice this? See the mountains in the background? The P4P would never do this.

That's a result of the stitching, and has nothing to do with the camera.

 

[brett8883]

Coming from my workhourse Phantom 4 Pro, I'm loving the Air 2S! When I go to edit 9 shot panoramics in lightroom, however, the photos have a slight fisheye effect to them. Is there a lens correction profile in Lightroom that'll fix this? The P4P NEVER had any of these issues. Anyone else notice this? See the mountains in the background? The P4P would never do this.

Just correct it manually.

 

[Ralph thompson]

As said above, there’s a Manual tab in the same window as the lens correction window. It should work but if u get really desperate, go into PS & use Liquify under Filters

 

[sarimento1]

so, i've been playing around with this issue.

for me, the problem is that the Air2S "wide" pano files will not merge to a "Perspective" projection in Lightroom Classic; the only projections that seem to work are Spherical or Cylindrical, both of which result in the barrel distortion.

(By comparison, my Mini2 "wide" pano files stitch nicely in Lightroom as Perspective projection, no barrel distortion.)

My guess is that the issue lies with Adobe not having the Air2S "Lens profile" updated yet in Lightroom (or Photoshop).

As a workaround, I read the metadata from an Air2S downloaded stitched wide JPG, and the lens profile shown was "DJI Inspire I FC350." I entered that profile into each of the 9 Air2S files (Lightroom-Develop module-Lens correction-Profile-Setup-Custom and select from drop down model list). Lightroom then produced a nicely-stitched file, albeit as a "Cylindrical" projection. (Don't ask me why!) resulting image here.

Of course, another work-around is Microsoft ICE (for PC users).

If this is an oversight by Adobe or DJI, my guess is that they will get around to correcting this, hopefully before an Air3 is released!

 

[brett8883]

so, i've been playing around with this issue.

for me, the problem is that the Air2S "wide" pano files will not merge to a "Perspective" projection in Lightroom Classic; the only projections that seem to work are Spherical or Cylindrical, both of which result in the barrel distortion.

(By comparison, my Mini2 "wide" pano files stitch nicely in Lightroom as Perspective projection, no barrel distortion.)

My guess is that the issue lies with Adobe not having the Air2S "Lens profile" updated yet in Lightroom (or Photoshop).

As a workaround, I read the metadata from an Air2S downloaded stitched wide JPG, and the lens profile shown was "DJI Inspire I FC350." I entered that profile into each of the 9 Air2S files (Lightroom-Develop module-Lens correction-Profile-Setup-Custom and select from drop down model list). Lightroom then produced a nicely-stitched file, albeit as a "Cylindrical" projection. (Don't ask me why!) resulting image here.

Of course, another work-around is Microsoft ICE (for PC users).

If this is an oversight by Adobe or DJI, my guess is that they will get around to correcting this, hopefully before an Air3 is released!

The distortion is from the projecting the image inside the sphere or cylinder. The distortion of each photo doesn’t have an effect on the distortion of the panoramic image.

The lens correction profile for the Air2s is likely embedded in the DNG as that’s how DJI had been doing it for a long time now.

The “perspective” pano projection is good for what you are looking for but it doesn’t work on really wide panos. Maybe the Air2s pano mode is just too wide for it to work? I’m not sure.

 

[sarimento1]

The distortion is from the projecting the image inside the sphere or cylinder. The distortion of each photo doesn’t have an effect on the distortion of the panoramic image.

The lens correction profile for the Air2s is likely embedded in the DNG as that’s how DJI had been doing it for a long time now.

The “perspective” pano projection is good for what you are looking for but it doesn’t work on really wide panos. Maybe the Air2s pano mode is just too wide for it to work? I’m not sure.

Exactly. My guess is that Adobe hasn’t updated its software to reflect the new DJI camera.

 

[brett8883]

Exactly. My guess is that Adobe hasn’t updated its software to reflect the new DJI camera.

No I’m saying the lens profile is embedded in the DNG itself. Lightroom will say something to the effect “built in profile applied.”

It use to be Adobe would load profiles into the program with updates but that’s not how it works anymore. The profiles in embedded in the photos. That’s why you don’t see any DJI models on the list past the mavic pro and inspire 1.

 

[sarimento1]

No I’m saying the lens profile is embedded in the DNG itself. Lightroom will say something to the effect “built in profile applied.”

It use to be Adobe would load profiles into the program with updates but that’s not how it works anymore. The profiles in embedded in the photos. That’s why you don’t see any DJI models on the list past the mavic pro and inspire 1.

Thanks but I still don’t get why Lightroom and Photoshop can properly stitch my Mini2 pano shots but not from the Air2S?

 

[Meta4]

Thanks but I still don’t get why Lightroom and Photoshop can properly stitch my Mini2 pano shots but not from the Air2S?

Post your Air 2S shots that won't stitch and I'll see if they will stitch, or explain why they won't.

 

[RodneyKeith]

I am new to this forum, please excuse me if there is already a solution- I am still looking for one. I love the idea of DJI Air 2S wide panorama (9 DNG shots). The JEPG file produced by the drone is great but I need it in RAW to manipulate the image. Combining the DNG files in Lightroom, Photoshop and even in Affinity produces a curved horizon. I presume a lot of you are still looking for a solution. Any suggestions?

 

[sarimento1]

Post your Air 2S shots that won't stitch and I'll see if they will stitch, or explain why they won't.

That would be great.
would jpgs work for you to test with?

 

[Grippy]

Use Ice to Stitch, it's much more reliable and gives many more options than Lightroom or Photoshop.

 

[Meta4]

That would be great.
would jpgs work for you to test with?

jpg images would be just fine.
Post them here, or post a link to dropbox or similar and I'll go to work on them to see what's going on.

 

[sarimento1]

jpg images would be just fine.
Post them here, or post a link to dropbox or similar and I'll go to work on them to see what's going on.

will appreciate the help!

so, a set of air2s wide pano files are here.

and, if you want to compare, a set of mini2 wide pano files are here.

maybe you can figure out why i can't get the air2s files to stitch as 'perspective' projection in adobe while the same process works fine with the mini2 files!

 

[Meta4]

will appreciate the help!

so, a set of air2s wide pano files are here.

and, if you want to compare, a set of mini2 wide pano files are here.

maybe you can figure out why i can't get the air2s files to stitch as 'perspective' projection in adobe while the same process works fine with the mini2 files!

There's nothing wrong with the image files, they stitch perfectly.
But the way they've been taken makes the stitch initially display with a bowed horizon.
I've tried stitching in 3 different programs and get similar results for all.

Pull the horizon down a little to flatten it (not sure if Photoshop allows you to do this but my specialised stitching programs all do.

Crop

And there's your image

If the bowing of the horizon was the issue, I suspect it's caused by the initial capture is very "bottom heavy", with the sky only being a small part of the total.

I'll look at the Mini2 pics later.

 

[sarimento1]

There's nothing wrong with the image files, they stitch perfectly.
But the way they've been taken makes the stitch initially display with a bowed horizon.
I've tried stitching in 3 different programs and get similar results for all.

Pull the horizon down a little to flatten it (not sure if Photoshop allows you to do this but my specialised stitching programs all do.

Crop

And there's your image

If the bowing of the horizon was the issue, I suspect it's caused by the initial capture is very "bottom heavy", with the sky only being a small part of the total.

I'll look at the Mini2 pics later.

thanks for working on those.
you got same result in adobe that i did, a curved horizon.
same happens with all my air2s wide panos, regardless the amount of sky in the scene.
see what the mini2 files do for you in adobe.
for me, the mini2 files stitched with straight horizon in the 'perspective' projection mode.
would be great to learn why one adobe can properly handle one drone but not the other.