Dark verticle shadows in astro panorama

Forum|Forum|7 years ago
July 24, 2018
2 replies
1664 views

Hi I am having trouble with panoramas stitching. I use a 24mm lens mounted on a tripod with a pano head adjusted for parallax as well as being centered and level and shooting at 15 deg apart. When I stitch in Light Room the results are dark vertical shadows in the sky, they look like spot where each photo was stitched. I synced all the photos with lens corrections made, and adjusted the amount of vignette, but still have these lines. I tried shooting at every 18 deg due to the lens being wide angle and found that some panos came out much better and I thought I had the problem fixed, but the lines began to show up again in other panos. .

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Correct answer Abambo

The white lines are artifacts due to the "low" quality display! When you flatten your image, they will disappear.

Abambo

Community Expert

RAW or JPEG?

The stitching adjusts for light condition changes, However, when both images show a lot of vignetting, this could be misinterpreted by the software as a natural situation. Try to export with your corrections to TIFF and stitch those.

ABAMBO | Hard- and Software Engineer | Photographer

R

rayk60948421Author

Known Participant

Thank you I will try that. I tried to stitch using Photo Shop and it stitches it nicely without any vertical lines showing, however the image has white lines throughout, like a puzzle, and the image is warped into a U shape, no matter which style of pano I choose. I understand photo shop renders the image in Jpeg form, could that be why the vertical lines don't show.

Sent from my Samsung Galaxy smartphone.

JohanElzenga

Community Expert

The panorama gets a U-shape if you tilted your camera up or down when you shot the panorama. Lightroom compensates for that during stitching, Photoshop does not. In Photoshop you will have to use something like the Adaptive Wide Angle filter to correct it.

-- Johan W. Elzenga

JohanElzenga

Community Expert

AFAIK, lens profiles are used, but manual adjustments are ignored when the images are stitched. That means that this could well be vignetting, due to less than optimal lens profiles. The adjusted amount of vignetting was ignored.

-- Johan W. Elzenga

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