INSTA PRO 2 = DNG/JPEG HDR MODE / PT GUI ?

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Brice Genevois

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Aug 18, 2022, 10:15:18 AM8/18/22
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Hi,
wanted to know why my DNG bracketing shoots with InstaPro2 are not recognized by PtGuiPro like HDR shots ?

in JPEG is the same

could you help me please ?

thanks

PTGui Support

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Aug 18, 2022, 10:18:00 AM8/18/22
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Hi Brice,

First of all make sure you are running the Pro version of PTGui (see
Help - About).

Secondly, the exposure should be loaded in a repeating sequence. For
example:

Shot1 -2 EV
Shot1 0 EV
Shot1 +2 EV
Shot2 -2 EV
Shot2 0 EV
Shot2 +2 EV

I think the InstaPro uses a different ordering by default (first all
-2EV shots, then all 0EV shots, or similar). You would need to re-order
the images.

If you can't get it to work, please post your project file here (after
loading the images).

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com
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PTGui Support

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Aug 18, 2022, 10:30:51 AM8/18/22
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Also see 7.3 for more information:
https://ptgui.com/support.html#7_3

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

Brice Genevois

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Aug 18, 2022, 10:51:54 AM8/18/22
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Hi Joost, thanks for your quick answer
following your advices, its works well using the 'Link Selected Images' on PtGui Pro
thanks !
but how to export a DNG panorama !?!
i only found .TIFF, .JPEG, . PSD 
?

king regards


Brice Genevois
06 76 96 36 16
b.gen...@gmail.com


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Erik Krause

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Aug 18, 2022, 11:51:26 AM8/18/22
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Am 18.08.2022 um 16:51 schrieb Brice Genevois:

> but how to export a DNG panorama !?!

DNG is a container format, which usually contains raw image data. Once
PTGui processed the images they are not raw any more. Use TIFF instead.

--
Erik Krause
http://www.erik-krause.de

Brice Genevois

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Aug 19, 2022, 8:11:01 AM8/19/22
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thanks Eric, 


Brice Genevois
06 76 96 36 16
b.gen...@gmail.com

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Philip Chong

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Aug 23, 2022, 8:57:06 AM8/23/22
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Erik, is it possible to have PTGUi keep the processed stitched images in with all the container format?

I cant edit my drone 25 DNG individually, so I pass it to PTGui to stitch first, then use my photo editor to do the edits. That's why my question above.

PTGui Support

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Aug 23, 2022, 9:42:35 AM8/23/22
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Hi Philip,

DNG output is on the wish list for a future version. But you can just as
well use TIFF, there's no technical advantage in using DNG for processed
images, it's not a raw image anymore.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 23-08-2022 14:57, Philip Chong wrote:
> Erik, is it possible to have PTGUi keep the processed stitched images in
> with all the container format?
>
> I cant edit my drone 25 DNG individually, so I pass it to PTGui to
> stitch first, then use my photo editor to do the edits. That's why my
> question above.
>
> On Friday, August 19, 2022 at 8:11:01 AM UTC-4 b.gen...@gmail.com wrote:
>
> thanks Eric,
>
>
> Brice Genevois
> 06 76 96 36 16
> b.gen...@gmail.com
>
>> Le 18 août 2022 à 17:51, Erik Krause <erik....@gmx.de> a écrit :
>>
>> Am 18.08.2022 um 16:51 schrieb Brice Genevois:
>>
>>> but how to export a DNG panorama !?!
>>
>> DNG is a container format, which usually contains raw image data. Once
>> PTGui processed the images they are not raw any more. Use TIFF
>> instead.
>>
>> --
>> Erik Krause
>> http://www.erik-krause.de <http://www.erik-krause.de>
>>
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>> <https://groups.google.com/d/msgid/ptgui/ddf04f2e-437d-a46e-19c5-9ef078dca835%40gmx.de>.
>
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Erik Krause

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Aug 23, 2022, 9:48:12 AM8/23/22
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Am 23.08.22 um 14:57 schrieb Philip Chong:

> Erik, is it possible to have PTGUi keep the processed stitched images in
> with all the container format?

No. The DNG files contain raw sensor data, which needs to be converted
(some say "developed") in order to be processed by PTGui. If you feed
the DNGs directly to PTGui, Libraw is used for this purpose. See also
https://ptgui.com/support.html#3_7

> I cant edit my drone 25 DNG individually, so I pass it to PTGui to stitch
> first, then use my photo editor to do the edits. That's why my question
> above.

If your photo editor can't open DNG files, it wouldn't open them if they
where produced by PTGui either. However, if you create your panorama as
16bit TIFF, you should have enough latitude to do the necessary edits.
If the DNG files are in HDR mode you can also stitch to EXR or 32 bit
TIFF, to maintain the full dynamic range.

It wouldn't be beneficial to do individual edits on the source images
anyway, since PTGui needs them all the same to process them correctly as
also stated in the above linked FAQ article. Please read it thoroughly...

--
Erik Krause

Brice Genevois

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Aug 23, 2022, 10:23:43 AM8/23/22
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Hi everyone
Tiff is just a photoshop format
We need DNG to edit our panoramas using the “native Raw way” wich is essential for photographers
Example: Using Insta Stitcher I can export JPEG + DNG Raw for each panoramic picture



Brice Genevois
0676963616
b.gen...@gmail.com

> Le 23 août 2022 à 15:42, 'PTGui Support' via PTGui Support <pt...@googlegroups.com> a écrit :
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Philip Chong

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Aug 23, 2022, 10:55:03 AM8/23/22
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Maybe you dont understand my question.

I have 25 DNG photos that I shoot from my drone.  I can't edit each file individually until I have stitch them together.

That is why I save the 25 DNG as TIFF, pass it to PTGui to stitch.

After PTGui is done stitching, I WISH it retain all the RAW container.  I even save it as PS (Photoshop format).  Its no use.  The dead giveway is now the Temperature is now -100 to 100, instead of 2K to 5K.

PTGui Support

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Aug 23, 2022, 11:51:17 AM8/23/22
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Hi Philip,

Yes I think I understand why you ask. But please keep in mind that
stitching (and many other image processing tasks) require demosaicing
and color space conversion first. A panorama cannot be a RAW file
anymore, stitching requires developing the RAW files first.

Now the DNG format allows embedding non-raw image data as well, and I
think Adobe are treating this the same way as RAW files. It's not RAW at
all, there's no image quality advantage, I think it's an artificial
thing in Photoshop, but I understand why it would be useful to have.

As I said it's on the wish list.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

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Erik Krause

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Aug 23, 2022, 4:50:56 PM8/23/22
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Am 23.08.2022 um 16:23 schrieb Brice Genevois:

> Tiff is just a photoshop format

TIFF is much older than photoshop, created by Aldus (which was later
acquired by Adobe) and DNG is also just an Adobe creation. And as a file
format it's basically TIFF with some meta data.

> We need DNG to edit our panoramas using the “native Raw way” wich is essential for photographers
> Example: Using Insta Stitcher I can export JPEG + DNG Raw for each panoramic picture

The "native raw way" would be to work on raw sensor data, which by
definition is not altered in any way, especially not interpolated or
warped (which a panorama always is). Of course such an image can be put
inside a DNG container, but it's not raw anymore.

Brice Genevois

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Aug 24, 2022, 1:16:41 AM8/24/22
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Hi Erik
you mean that is not possible to get a DNG panorama after stitching ?
And I get them with insta 360 stitcher why ?
this software is really not performant but I got DNG wich is more important than stitching




Brice Genevois
0676963616
b.gen...@gmail.com

> Le 23 août 2022 à 22:50, Erik Krause <erik....@gmx.de> a écrit :
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PTGui Support

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Aug 24, 2022, 3:26:07 AM8/24/22
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Outputting to DNG should be possible. It's not a RAW image, there is no
quality advantage, it's just that Adobe requires you to use DNG.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

Brice Genevois

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Aug 24, 2022, 3:58:57 AM8/24/22
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panoramic DNG offer me to open it with Camera Raw
and this is a huge quality advantage !



Brice Genevois
06 76 96 36 16
b.gen...@gmail.com

John Houghton

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Aug 24, 2022, 4:45:19 AM8/24/22
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On Wednesday, August 24, 2022 at 8:58:57 AM UTC+1 b.gen...@gmail.com wrote:
panoramic DNG offer me to open it with Camera Raw
and this is a huge quality advantage !

Brice, You can open TIFF and JPEG files in Camera Raw.  Enable in Camera Raw preferences.

John 

PTGui Support

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Aug 24, 2022, 5:24:55 AM8/24/22
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Thanks, I wasn't aware of this!

Actually you can create a TIFF panorama with PTGui, open it in Photoshop
and then do Filter - Camera RAW Filter. This would give you the same
options as if PTGui would create a DNG.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

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John Houghton

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Aug 24, 2022, 5:40:07 AM8/24/22
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On Wednesday, August 24, 2022 at 10:24:55 AM UTC+1 PTGui Support wrote:
Thanks, I wasn't aware of this!

Actually you can create a TIFF panorama with PTGui, open it in Photoshop
and then do Filter - Camera RAW Filter. 

That option doesn't appear to be available in CS6 so wouldn't be an option for me.

John

 

Erik Krause

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Aug 24, 2022, 6:25:13 AM8/24/22
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Am 24.08.22 um 11:24 schrieb PTGui Support:
> Actually you can create a TIFF panorama with PTGui, open it in Photoshop
> and then do Filter - Camera RAW Filter. This would give you the same
> options as if PTGui would create a DNG.

You also can pass any file to Camera Raw from Adobe Bridge.

--
Erik Krause

florianjosef

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Aug 24, 2022, 6:39:51 AM8/24/22
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Camera Raw filter is available in any PSD readable Layer
you can even create a smart layer from the Pano Layer and apply camera raw filter to it. and Adjust, Adjust,....


To have all available Tone (color) Information, 16bit or even 32bit could transport it
32 bit is a bit more difficult to handle...

florianjosef

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Aug 24, 2022, 6:44:28 AM8/24/22
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and this might be not available in older version of PS

CS6 is a bit outdated .... some 10 years old.....
Adobe CS6 Launched on April 23rd 2012

John Houghton

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Aug 24, 2022, 7:51:34 AM8/24/22
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On Wednesday, August 24, 2022 at 11:44:28 AM UTC+1 florianjosef wrote:
and this might be not available in older version of PS

CS6 is a bit outdated .... some 10 years old.....
Adobe CS6 Launched on April 23rd 2012

Indeed it is old, certainly, but it continues to work well - now with Windows 11 - and does everything I need.  I do need to make use of the DNG Converter to maintain compatibility with newer cameras.

John
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