Mavic 3 DNG files Clipping Issue in PTgui

[Jsrpixel]

Hi PTGui support team,

I have been trying to import untouched DNG files captured from my DJI Mavic 3 into PTGui for Panorama stitching. I noticed from the detail preview window that some dynamic range is lost before exporting. I discovered it by comparing the same panorama stitched by lightroom and PTGui. I can see the Clipping area in the sky is more severer in PTGui than the one in Lightroom as you can see in the images comparison below.

The above image shows the snapshot of the detailed preview window and you can see the clipping area in the sky is more severe

The other image above shows a similar blow-up pano stitched in the lightroom and the clipping area is not as severe.

So, I was wondering whether this is to do with the support of the Mavic 3 DNG files. I then used the lightroom to convert the untouched DNG files into TIFF before importing them into PTGui for stitching.  This seems to have resolved the clipping issue ( as shown in the detail preview window below using this workaround method).

Although this seems to have resolved my issue temporarily, I would still like to bring this issue to your attention to see if you can provide a permanent solution to fix this compatibility problem when importing DNG files from Mavic 3.

Your advice and help are much appreciated and would be beneficial to all the Mavic 3 users.

Thanks and best regards,

John

[Barney Meyer]

Hi John

I ALWAYS shoot DNG files with manual exposure settings.

Then I batch edit all of these files (I do the RAW editing in Bridge/ACR but any good RAW editor will work) and output as jpegs, or 16 bit TIFF files if the dynamic range is extreme.

PTGUI is great, but it's not designed to edit your original photo frames.

Here's  a series of four panos (done some years ago with a P4P), shot as DNG's, converted to 16 bit Tiff files due to the dynamic range, then stitched in PTGUI Pro.

https://www.hiddenmelbourne.com.au/PhasesOfRhyll

Regds, Barney

[PTGui Support]

Hi,

These DNG files are not actualy images; they contain raw sensor data.
The sensor data needs to be converted to an image first. This is called
raw conversion.

PTGui offers basic raw conversion, but lightroom just is a better raw
converter. You can convert the DNG files to 16 bit tiff in Lightroom and
then stitch those images in PTGui.

See 3.7:
https://ptgui.com/support.html#3_7

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 20/02/2022 06:46, Jsrpixel wrote:
> Hi PTGui support team,
>
> I have been trying to import untouched DNG files captured from my DJI
> Mavic 3 into PTGui for Panorama stitching. I noticed from the detail
> preview window that some dynamic range is lost before exporting. I
> discovered it by comparing the same panorama stitched by lightroom and
> PTGui. I can see the Clipping area in the sky is more severer in PTGui
> than the one in Lightroom as you can see in the images comparison below.
>
>

> PTGui001jpg.jpg
> The above image shows the snapshot of the detailed preview window and
> you can see the clipping area in the sky is more severe
>

> lightroom.jpg
> The other image above shows a similar blow-up pano stitched in the
> lightroom and the clipping area is not as severe.
>
> So, I was wondering whether this is to do with the support of the Mavic
> 3 DNG files. I then used the lightroom to convert the untouched DNG
> files into TIFF before importing them into PTGui for stitching.  This
> seems to have resolved the clipping issue ( as shown in the detail
> preview window below using this workaround method).
>

> ptgui3.jpg
>
> Although this seems to have resolved my issue temporarily, I would still
> like to bring this issue to your attention to see if you can provide a
> permanent solution to fix this compatibility problem when importing DNG
> files from Mavic 3.
>
> Your advice and help are much appreciated and would be beneficial to all
> the Mavic 3 users.
>
> Thanks and best regards,
>
> John
>

> --
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[PTGui Support]

Hi John,

Could you send me that DNG file? I'd like to see if this can be improved
in PTGui.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 20/02/2022 10:58, Jsrpixel wrote:
> Hi Barney,
>
> Thanks for your advice. I am only trying to stitch my panorama with
> PTGui then import it into Lightroom for further editing. What I was
> saying is that PTGui takes away some dynamic range after stitching
> (suspecting due to file incompatibility ).
>
> I used a similar workflow to yours to edit all the raw files in a
> third-party RAW editor like the Lightroom first before importing them as
> JPEG or TIFF for PTGui's stitching. This method is a bit tedious and a
> bit complex and I don't have a full picture of the frame when adjusting
> the color and exposure in lightroom before stitching them in PTGui.
>
> I also just find item 3.7 on PTGui's Q&A page, and this seems to be the
> recommended way to do it and matches with my workaround method. So, I
> guess there won't be direct support of the DNG files for the Mavic 3
> without converting them all to TIFFs beforehand.
>
> Anyways, much appreciate your reply, Barney!  Great Panos you have there.
>
> Q&A.jpg
>
> Regards,
>
> John

>
>
> On Sunday, February 20, 2022 at 2:48:40 PM UTC+8 barney....@gmail.com wrote:
>
> Hi John
> I ALWAYS shoot DNG files with manual exposure settings.
> Then I batch edit all of these files (I do the RAW editing in
> Bridge/ACR but any good RAW editor will work) and output as jpegs,
> or 16 bit TIFF files if the dynamic range is extreme.
> PTGUI is great, but it's not designed to edit your original photo
> frames.
> Here's  a series of four panos (done some years ago with a P4P),
> shot as DNG's, converted to 16 bit Tiff files due to the dynamic
> range, then stitched in PTGUI Pro.
> https://www.hiddenmelbourne.com.au/PhasesOfRhyll
> <https://www.hiddenmelbourne.com.au/PhasesOfRhyll>
> Regds, Barney
>
> On Sunday, 20 February 2022 at 16:46:20 UTC+11 sui...@gmail.com wrote:
>
> Hi PTGui support team,
>
> I have been trying to import untouched DNG files captured from
> my DJI Mavic 3 into PTGui for Panorama stitching. I noticed from
> the detail preview window that some dynamic range is lost before
> exporting. I discovered it by comparing the same panorama
> stitched by lightroom and PTGui. I can see the Clipping area in
> the sky is more severer in PTGui than the one in Lightroom as
> you can see in the images comparison below.
>
>

> PTGui001jpg.jpg
> The above image shows the snapshot of the detailed preview
> window and you can see the clipping area in the sky is more severe
>

> lightroom.jpg
> The other image above shows a similar blow-up pano stitched in
> the lightroom and the clipping area is not as severe.
>
> So, I was wondering whether this is to do with the support of
> the Mavic 3 DNG files. I then used the lightroom to convert the
> untouched DNG files into TIFF before importing them into PTGui
> for stitching.  This seems to have resolved the clipping issue (
> as shown in the detail preview window below using this
> workaround method).
>

> ptgui3.jpg
>
> Although this seems to have resolved my issue temporarily, I
> would still like to bring this issue to your attention to see if
> you can provide a permanent solution to fix this compatibility
> problem when importing DNG files from Mavic 3.
>
> Your advice and help are much appreciated and would be
> beneficial to all the Mavic 3 users.
>
> Thanks and best regards,
>
> John
>

> --
> 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/a66357e8-7638-4306-85ec-911fb71c1521n%40googlegroups.com
> <https://groups.google.com/d/msgid/ptgui/a66357e8-7638-4306-85ec-911fb71c1521n%40googlegroups.com?utm_medium=email&utm_source=footer>.