I am having a continued frustration with something. When I generate wide-angle images, using the Panorama tool on the 4 Pro, whilst the jpegs always have straight horizons, ‘sometimes’ the DNG files, when stitched together in Affinity 2, come out with a heavily curved horizon and heavily clipped. The separate DNG file images themselves are all straight and evenly exposed but going through the panorama tool in Affinity2 ruins them. The Mini 4 Pro’s software always produces a jpegs properly exposed and straight. Does anyone else have this issue. I’ve asked Affinity about this and they have been less than helpful, saying I should convert all the DNG files to tiffs first. I’ve tried this and its made no difference. The other issue is the poor quality of the stitching of some 180 panoramas in Affinity2. With a clear sky, the stitching is visible and very difficult to remove, rendering some images useless. Left image is created by Panorama tool in Affinity2, right image by DJi Mini 4 pro.
I have this too which I believe is quite normal when using the DNG’s as the JPEGs have already been processed ( I believe ) within the drone software, however I use Adobe camera Raw / Photoshop, I know nothing about affinity2,
It’s a simple fix in photoshop ( not that that helps ) but I think there are many affinity users on here that may get back to you with an answer,
But the problem above I don’t have 
sorry I could not help further & hopefully you’ll get it sorted with a work around one way or the other 
What does photoshop do (Do you use full photoshop or Lightroom), that makes it easier?
I use just the above yes, still learning so by throwing Lightroom into the mix will just confuse me 
In photoshop there is a wide angle setting/profile which is where I go to correct the distortion / curvature, also if things are not quite straight vertically you can fix that there too, I try to steer clear tho as much as I can ( again still learning ) but I do find that a bit difficult at times but good enough,
We was actually having a chat similar to this the other week about things that are crooked vertically but it does the job,
Not a hundred percent but it’s in a post somewhere I think ( maybe ) Lightroom can fix it was mentioned but not 100%, I’ll see if I can find the post when I’ve eaten my cheesecakes
Here’s one but this is Lightroom
And this Thread for the verticals .
Stop it with the cheesecake, you’re making me want comfort food!!
There blackcurrant & very zingy 
Thats it I’m off for a homemade brownie!
It’s a common problem when stitching shots together to form panoramas - the more shots, the bigger the issue. Most of my shots i process are actually HDR panoramas, sometimes as many as 20-30 images.
I cant comment on Affinity 2 but i can certainly comment on Lightroom. Basically, in the Develop module, the 2 sections on the right hand side are the adjustment sections i use for correcting distorted images (verticals, horizons etc). Its easy peasy to use - more often than not, i just select the auto function then tweak the sliders manually
There are also specific tools you can buy that specialise in correcting issues like this that you can use as standalone or plugins to LR and Photoshop. For example ViewPoint5 from DxO. I just got that yesterday so still playing with it (its currently free as I upgraded to the latest version of DxO’s Nik collection of plugins that i use for virtually all my processing as part of my LR and PS workflows)
Post them so we can have a play with them
It’s using a spherical projection and the camera is pointing down so the horizon will be curved. I’ve not use Affinity for panos, is there a projection setting?
Cylindrical projection would be OK, or a linear one if it is’nt too wide.
Google says: Affinity Photo does not offer a direct, user-selectable Cylindrical projection option during panorama stitching. However, it does use a cylindrical projection by default for panoramas
Give AutoGiga Pano a try, its freely avialbale and has a lot more tools
Not an editor, just a stitcher, then use Affinty for your edits on the stitched photo
I was about to post the same: AutoPano Giga is Now Free
Kolor who created it were bought by DJI for their 360 degree video stitching, however, DJI ended up using difference software and shut them down.
I don’t have PLR. My last Adobe product was hard copy Adobe CS6, for work, but since they’ve gone subscription based, and having to upgrade the OS on my iMac, because of glitches from putting it off so long, I’ve opted out. A2 doesn’t have a lens profile for the 4 Pro, and the lens correction tools look quite different in LR, so thats a difficult one. Maybe I just have to bite the bullet and buy a 3S, for which they do have a profile!!!
Do you create your own Panos, manually, or use the in camera Pano settings?
PANO_0001.DNG (24.3 MB)
PANO_0002.DNG (24.2 MB)
PANO_0003.DNG (24.5 MB)
PANO_0004.DNG (24.5 MB)
PANO_0005.DNG (24.3 MB)
PANO_0006.DNG (24.2 MB)
PANO_0007.DNG (24.2 MB)
PANO_0008.DNG (24.3 MB)
PANO_0009.DNG (24.5 MB)
I create them myself - the dji pano feature isnt great in that you have no control over what is included in the image vertically or horizontally. Also, as i mostly shoot bracketed shots (3 images typically) that wouldn’t be an option for me anyway.
I do resent the adobe subscription model as they have you by the short and curlies in terms of price hikes, but my whole worklfow is nased around their products and a fair few plugins that just hang together nicely
I hear you and I agree. Particularly with the 180, which always centres the lens around the horizon. I’ve done a couple manually myself, with the drone, with mixed results. Just practise I guess.
Thanks for the heads up on that. In Equirectangular, it distorts the image totally and in Perspective, it brings up a grid, which can then be manipulated, a bit like the Mesh warp tool, but no much help. The Mesh Warp tool is the only thing I’ve found thus far, that enables me to draw the horizon down to a level plane. I think what is probably happening, is that when I point the camera down to create a ‘thirds’ perspective, as you say, the camera points at the ground and distorts the horizon.
Autopano still works, follow the link I posted and do what it says. You’ll be able to get something much better.