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Author Topic: LR 10 panorama much improved but still buggy...  (Read 2221 times)

dpirazzi

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Re: LR 10 panorama much improved but still buggy...
« Reply #20 on: November 04, 2021, 06:29:57 pm »

Did you rotate about the nodal point? This becomes more important when you have close foreground objects as with the boulders.

Beautiful spot!
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dreed

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Re: LR 10 panorama much improved but still buggy...
« Reply #21 on: November 07, 2021, 12:54:42 am »

+1
  Vignetting is huge , overlap too small, colours not equal-
Bad start

The color shift in blue is not vignetting but CPL filter in action. When you've got a large field of view you will almost never get uniform color in the sky when using a polariser.

Did you rotate about the nodal point? This becomes more important when you have close foreground objects as with the boulders.

when using multiple cameras to do simultaneous capture to prevent issues with waves, rotating around a nodal point is not possible.

That set of 3 was at 22mm (*1.6). From another set of pictures, taken at 14mm (*1.6), I generated the attached image. As you can see, when merging raw images, the CPL issue becomes less of a bother.

If there's anything wrong, it might be that LR's algorithms don't work on narrower fields of view but that needs more testing. And by narrower, I mean anything narrow than ~24mm (FF). But that doesn't explain the "works for preview but not full images."
« Last Edit: November 07, 2021, 01:05:17 am by dreed »
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David Eichler

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Re: LR 10 panorama much improved but still buggy...
« Reply #22 on: November 23, 2021, 03:31:43 pm »

Compared to earlier releases of LR that I'd tried, the LR panorama merge is a much better proposition.

In some instances I now prefer it to PTgui because it gets colours better.

However...

All too often I see "tears" or "seams" in LR panorama merge output that PTgui does not have. Some examples of an obvious merge tear attached where it is failing to align the horizon and map the merge correctly.
I use this feature pretty regularly and I have not seen this problem in Lightroom since the early days of this feature.
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Paul2660

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Re: LR 10 panorama much improved but still buggy...
« Reply #23 on: November 24, 2021, 07:35:24 am »

Trying to merge images with solid blue skies can be very difficult. You can try to get the sky even across the frame but it always seems that the next image is slightly darker or lighter and this you see the dark band in sky between the images.

Make sure you have the latest version of ptgui as I find it does better on solid skies now. Itís not a free upgrade.

Also the curve in the bottom of top image is also a common issue and very simple to fix with photoshop and the manual warp feature. You will lose a bit of the image but you wonít have the curve. Usually  works with little or no detail loss.

Another reason for problem is a polarized sky. You will always have issue trying to blend a solid blue sky across multiple frames if you have polarized them as the polarization effect will change as you move across the image. Even if you try to rotate the polarizer during capture.

Paul
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Paul Caldwell
Little Rock, Arkansas U.S.
www.photosofarkansas.com

David Eichler

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Re: LR 10 panorama much improved but still buggy...
« Reply #24 on: November 24, 2021, 01:42:44 pm »

Trying to merge images with solid blue skies can be very difficult. You can try to get the sky even across the frame but it always seems that the next image is slightly darker or lighter and this you see the dark band in sky between the images.

Make sure you have the latest version of ptgui as I find it does better on solid skies now. Itís not a free upgrade.

Also the curve in the bottom of top image is also a common issue and very simple to fix with photoshop and the manual warp feature. You will lose a bit of the image but you wonít have the curve. Usually  works with little or no detail loss.

Another reason for problem is a polarized sky. You will always have issue trying to blend a solid blue sky across multiple frames if you have polarized them as the polarization effect will change as you move across the image. Even if you try to rotate the polarizer during capture.

Paul
Recently did a wide panorama of a cityscape with a clear sky, with maybe five or six images. Zero abrupt unevenness between images. Across the entire image? Yes, because the sky itself was uneven.
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