Inquiry About Aligning Day and Night Panoramas from the Same Location

[Cina]

Hello,

I currently own a license for PTGui Pro 13.

I would like to ask for advice on a workflow to create perfectly matched panoramas from photographs taken at the same location during daytime and nighttime.

Here is my situation:

• I captured 6 images (150° field of view) during the day and 6 images at night, all taken from the exact same position using a tripod that was not moved at all.

• In total, I have 12 images (6 day + 6 night).

• My goal is to stitch them into two panoramas (day and night) that align perfectly with each other.

The problem I am facing is that:

• Even when using templates, the final stitched panoramas do not match perfectly.

• When I try Photoshop Auto-Align, the two panoramas cannot be aligned at all.

• Interestingly, if I take only one daytime image and one nighttime image and use Auto-Align, they align correctly.

• However, once I stitch each set into a panorama, the connection points differ each time, causing the final day and night panoramas to be misaligned.

It seems that the issue occurs during the stitching process itself, where each panorama is optimized slightly differently.

Could you please advise on:

• The correct workflow or settings to ensure identical stitching geometry for both day and night panoramas?

• Whether there is a way to lock control points, lens parameters, or projection data so both panoramas are generated with exactly the same alignment?

• Any recommended best practices for handling day/night panorama matching in this scenario?

I would greatly appreciate your guidance.

Thank you very much for your time and support.

Kind regards,

[PTGui Support]

Hi,

When stitching multiple panoramas, there can be small variations in the
way the images are aligned, and in the optimized lens parameters. This
is because each panorama has a different set of control points.

With a non-360 degree panorama you may end up with slightly different
optimized focal lengths and a slightly different overall field of view.
So one panorama may cover 149° and the other 151°.

And if there's parallax the differences will even be larger. Depending
on the location of the control points, the optimized lens parameters may
differ significantly. Be sure to use a panoramic tripod head, not just a
regular tripod.

The solution is to load all source images (for both panoramas) at the
same time in a single project. PTGui will not only align the images
within each panorama but it will also align them against the
corresponding images in the other panorama.

Then when creating the panorama, use the "Include Images" list in the
Create Panorama tab, to only use the images for the daytime panorama.
Then repeat for the nighttime panorama.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 2/2/26 03:27, Cina wrote:
> Hello,
>

> I currently own a license for *PTGui Pro 13*.
>
> I would like to ask for advice on a workflow to create *perfectly
> matched panoramas* from photographs taken at the *same location during
> daytime and nighttime*.
>
> Here is my situation:
>
> *
>
> I captured *6 images (150° field of view)* *during the day* and *6
> images at night*, all taken from the *exact same position* using a

> tripod that was not moved at all.
>

> *
>
> In total, I have *12 images* (6 day + 6 night).
>
> *
>
> My goal is to stitch them into *two panoramas (day and night)* that

> align perfectly with each other.
>
> The problem I am facing is that:
>

> *
>
> Even when using templates, the final stitched panoramas do *not
> match perfectly*.
>
> *
>
> When I try *Photoshop Auto-Align*, the two panoramas cannot be
> aligned at all.
>
> *
>
> Interestingly, if I take *only one daytime image and one nighttime
> image* and use Auto-Align, they align correctly.
>
> *
>
> However, once I stitch each set into a panorama, the *connection
> points differ each time*, causing the final day and night panoramas

> to be misaligned.
>
> It seems that the issue occurs during the stitching process itself,
> where each panorama is optimized slightly differently.
>
> Could you please advise on:
>

> *

>
> The correct workflow or settings to ensure identical stitching
> geometry for both day and night panoramas?
>

> *
>
> Whether there is a way to *lock control points, lens parameters, or
> projection data* so both panoramas are generated with exactly the
> same alignment?
>
> *

>
> Any recommended best practices for handling day/night panorama
> matching in this scenario?
>
> I would greatly appreciate your guidance.
>
> Thank you very much for your time and support.
>
> Kind regards,
>

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