HDR Issue - Not linking images

[Andrew Kulin]

As of late, I have begun experiencing issues with HDR wherein the past none had occurred.  It is in regard to me being told that PTGUI cannot do the HDR stitch because the the images cannot be linked because the shutter timings are inconsistent.  I took a look at the FAQs and found one related to this topic.  I followed the instructions with no joy.  Still get the error message even trying to link an individual set of photographs (see attached).  Tried on the next three set of images and received same error.

My images are taken on a detented pano head system and all exposures are of the same interval.  You can see the file information on the screenshot image below.  Images are shot in Manual mode on a Canon camera system, same way I have been doing so for years without issue on PTGUI (in "M", set exposure, aperture, ISO and bracketing delta (e.g., 1 stop between exposures).  I use Live view with 2-second timer which with Canon cameras allows one shutter "press" to take all photos in rapid fire mode (5-shots in this case), then I rotate to next detented position and repeat). 

All images (105 in total in this case) have the exact same timings (1/60, 1/30, 1/15, 1/8, 1/4) and all are in order.

Unfortunately, if you ask, I will not be able to tell you when this started happening (i.e., after what software update for example because I often update without doing HDR stitching) other than "recently", say 2023. 

I do not see anything that would be cause for this problem.  Does anyone see anything wrong based on the screenshots provided?  There is a very sight difference in Yaw in the first photo, but none of the others have such a difference.  It is frustrating to say the least.  Never had issue with the software until recently.

Thanks

[PTGui Support]

Hi Andrew,

Could you post your project file here? Just the PTGui project file,
without the images.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 15-06-2023 15:48, Andrew Kulin wrote:
> As of late, I have begun experiencing issues with HDR wherein the past
> none had occurred.  It is in regard to me being told that PTGUI cannot
> do the HDR stitch because the the images cannot be linked because the
> shutter timings are inconsistent.  I took a look at the FAQs and found
> one related to this topic.  I followed the instructions with no joy.
> Still get the error message even trying to link an individual set of
> photographs (see attached).  Tried on the next three set of images and
> received same error.
>

> pTGUI 1.JPG
>
> My images are taken on a detented pano head system and all exposures are
> of the same interval.  You can see the file information on the
> screenshot image below.  Images are shot in Manual mode on a Canon
> camera system, same way I have been doing so for years without issue on
> PTGUI (in "M", set exposure, aperture, ISO and bracketing delta (e.g., 1
> stop between exposures).  I use Live view with 2-second timer which with
> Canon cameras allows one shutter "press" to take all photos in rapid
> fire mode (5-shots in this case), then I rotate to next detented
> position and repeat).
>

> ptgui 2.JPG
>
> All images (105 in total in this case) have the exact same timings
> (1/60, 1/30, 1/15, 1/8, 1/4) and all are in order.
>
> Unfortunately, if you ask, I will not be able to tell you when this
> started happening (i.e., after what software update for example because
> I often update without doing HDR stitching) other than "recently", say
> 2023.
>
> I do not see anything that would be cause for this problem.  Does anyone
> see anything wrong based on the screenshots provided?  There is a very
> sight difference in Yaw in the first photo, but none of the others have
> such a difference.  It is frustrating to say the least.  Never had issue
> with the software until recently.
>
> Thanks
>
>

> --
> You received this message because you are subscribed to the Google
> Groups "PTGui Support" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to ptgui+un...@googlegroups.com
> <mailto:ptgui+un...@googlegroups.com>.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/ptgui/13d76f97-114a-456f-8074-1bdd2f6c4937n%40googlegroups.com <https://groups.google.com/d/msgid/ptgui/13d76f97-114a-456f-8074-1bdd2f6c4937n%40googlegroups.com?utm_medium=email&utm_source=footer>.

[Andrew Kulin]

I presume this is what you asked for?

[Tom M.]

Starting at image 81, you've shot with f18 rather than f16. That's why PTGui doesn't recognize bracketing.

Tom

[Andrew Kulin]

Damn, I must have brushed against the wheel at back of camera!

But does that explain why I cannot individually link the first three sets of images individually?

[Andrew Kulin]

Also I should mention that I basically ended up stitching one set of exposures (middle bracket) then made templates and stitched the other four exposures and then merged output in separate HDR software.  PTGUI did not have an issue with slightly different f/stop in merging images in the regular (non-HDR) mode.

[PTGui Support]

Hi Andrew,

You can always link images manually by selecting a group in the Source
Images tab, right click, 'Link Selected Images'.

Or in this particular case, just change the f18 to f16 in the Image
Parameters tab. This overrides the values found in Exif. Then you can
use Images -> Link HDR Bracketed Exposures as normal.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

> --
> You received this message because you are subscribed to the Google
> Groups "PTGui Support" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to ptgui+un...@googlegroups.com
> <mailto:ptgui+un...@googlegroups.com>.
> To view this discussion on the web visit

> https://groups.google.com/d/msgid/ptgui/b08fe2cf-dacf-46f0-86be-38f57e87bac6n%40googlegroups.com <https://groups.google.com/d/msgid/ptgui/b08fe2cf-dacf-46f0-86be-38f57e87bac6n%40googlegroups.com?utm_medium=email&utm_source=footer>.

[Andrew Kulin]

I will try the changing of f18 to f16. 

But I do want to reiterate that when I tried to just link 5 images (e.g., 1-5) individually, which were all at f/16, I got the same error message (they would not link).  Is that because the software was looking at all 105 images and saw the problem starting at image 81, and so still would not let me do the individual sets of brackets manually?  Just trying to understand how this works for the future.

Thanks

[PTGui Support]

Hi Andrew,

It's not that sophisticatedl. 'Link HDR Bracketed Exposures' tries to
find a repeating sequence for the entire project, so it will either link
all 105 images or none.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 16-06-2023 17:25, Andrew Kulin wrote:
> I will try the changing of f18 to f16.
>
> But I do want to reiterate that when I tried to just link 5 images
> (e.g., 1-5) individually, which were all at f/16, I got the same error
> message (they would not link).  Is that because the software was looking
> at all 105 images and saw the problem starting at image 81, and so still
> would not let me do the individual sets of brackets manually?  Just
> trying to understand how this works for the future.
>
> Thanks
>
>
> On Friday, June 16, 2023 at 10:15:31 AM UTC-4 PTGui Support wrote:
>
> Hi Andrew,
>
> You can always link images manually by selecting a group in the Source
> Images tab, right click, 'Link Selected Images'.
>
> Or in this particular case, just change the f18 to f16 in the Image
> Parameters tab. This overrides the values found in Exif. Then you can
> use Images -> Link HDR Bracketed Exposures as normal.
>
> Kind regards,
>
> Joost Nieuwenhuijse

> www.ptgui.com <http://www.ptgui.com>

>
> On 16-06-2023 15:48, Andrew Kulin wrote:
> > Damn, I must have brushed against the wheel at back of camera!
> >
> > But does that explain why I cannot individually link the first three
> > sets of images individually?
> >
> > On Thursday, June 15, 2023 at 1:50:30 PM UTC-4 Tom M. wrote:
> >
> > Starting at image 81, you've shot with f18 rather than f16. That's
> > why PTGui doesn't recognize bracketing.
> >
> > Tom
> >
> > --
> > You received this message because you are subscribed to the Google
> > Groups "PTGui Support" group.
> > To unsubscribe from this group and stop receiving emails from it,
> send
> > an email to ptgui+un...@googlegroups.com
> > <mailto:ptgui+un...@googlegroups.com>.
> > To view this discussion on the web visit
> >

> https://groups.google.com/d/msgid/ptgui/b08fe2cf-dacf-46f0-86be-38f57e87bac6n%40googlegroups.com <https://groups.google.com/d/msgid/ptgui/b08fe2cf-dacf-46f0-86be-38f57e87bac6n%40googlegroups.com> <https://groups.google.com/d/msgid/ptgui/b08fe2cf-dacf-46f0-86be-38f57e87bac6n%40googlegroups.com?utm_medium=email&utm_source=footer <https://groups.google.com/d/msgid/ptgui/b08fe2cf-dacf-46f0-86be-38f57e87bac6n%40googlegroups.com?utm_medium=email&utm_source=footer>>.

>
> --
> You received this message because you are subscribed to the Google
> Groups "PTGui Support" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to ptgui+un...@googlegroups.com
> <mailto:ptgui+un...@googlegroups.com>.
> To view this discussion on the web visit

> https://groups.google.com/d/msgid/ptgui/ecd0197b-f92f-4fed-82e1-c47094537136n%40googlegroups.com <https://groups.google.com/d/msgid/ptgui/ecd0197b-f92f-4fed-82e1-c47094537136n%40googlegroups.com?utm_medium=email&utm_source=footer>.

[Erik Krause]

Am 16.06.23 um 17:25 schrieb Andrew Kulin:

> But I do want to reiterate that when I tried to just link 5 images (e.g.,
> 1-5) individually, which were all at f/16, I got the same error message
> (they would not link)

To link only the selected images, choose "Link selected Images" from the
Images menu.


--
Erik Krause

[Andrew Kulin]

Got it.  I was selecting 5 images and then using the HDR bracket option which would be for all images.  I missed the link selected images option in the pull down.