XnView Software

XnView: MP 1.9.1 - 64 bit
OS: Linux / 64bit (Debian 12 with LXDE)

After selecting the RAW files to be converted, for example to JPEG, and applying the “Convert to series” command, the preview of the photo is noticeably different from the original one, as it is overexposed, and brightness, color temperature, contrast, saturation, etc... are changed.
All this happens without having chosen and used any corrective action.

Effect: The files thus converted, are altered from the originals, so the usefulness of serial conversion is lost, since it is necessary to use the “export” function, which, however, converts only one at a time. And, if I have 1345 to convert?

To reproduce:
1. Select several RAW files;
2. Apply the “Convert to series” command;
3. Choose the “actions” tab and make sure none is used;
3. Watch the preview of the converted file (or convert!) and compare it with the original, using the “show original” button.

Current behavior (bug): alteration of exposure parameters, brightness, color temperature, contrast, saturation, etc...: bug:

Expected behavior: no difference of the described parameters between the RAW file and the one converted to a different format, without having used any corrective “action”

check 'Camera RAW' settings in Settings>Formats>Read
by default, its:

• for Viewing
  - Embedded preview (JPEG)

• for Converting
  - Full size
  - some adjustments from 'Full/Half size rendering group'

However, there is an issue
Preview in Batch convert continue to use Full(or Half size) when 'Embedded preview' is selected for Convert in Settings
test image: L1000109.DNG (67Mb)

user0 wrote: Fri Jun 06, 2025 4:26 pm Preview in Batch convert continue to use Full(or Half size) when 'Embedded preview' is selected for Convert in Settings
test image: L1000109.DNG (67Mb)

Batch convert needs to use the 'full size' if used for convert

xnview wrote: Mon Jun 09, 2025 7:49 am

user0 wrote: Fri Jun 06, 2025 4:26 pm Preview in Batch convert continue to use Full(or Half size) when 'Embedded preview' is selected for Convert in Settings
test image: L1000109.DNG (67Mb)

Batch convert needs to use the 'full size' if used for convert

but you have RAWFlag that should alter this behavior (like in FastStone)
and also:

xnview wrote: Sat Apr 27, 2024 3:01 pm You have a RAW flag when loading RAW in preview or tab, and when using convert or 'Batch convert'

In fact, my problem has not been solved, despite your advice.
Anyway, thank you.
I will go back to using RawTherapee which does not have this defect. It is just slower.

I'm returning to this topic because, as I said, I haven't solved the problem.
To clarify it better, I'm attaching two screenshots showing how I see the files.
Without making any changes, but only with the conversion, the files are altered in a disastrous way.
If I start the conversion, the resulting files are as seen in the conversion preview. This happens with all files.
If, on the other hand, I use the “export” function, the converted file is identical to the original.
I cannot use “export” if I have to convert hundreds of files from RAW to JPEG.
I am also attaching the “Formats - Reading” configuration. I should point out that I have tried all possible combinations, but the (terrible) result remains the same.
With RawTherapee, this does not happen, so I can rule out problems with other software (operating system, drivers, etc.) or hardware.
It is a problem caused by XnView.
I am using version 1.9.3 64-bit Linux (Debian 12) with files produced by Nikon D750, D850, or Z7ii.
Why?

massimo.peca wrote: Thu Sep 11, 2025 11:59 am To clarify it better, I'm attaching two screenshots showing how I see the files.

Please send us a sample file

This forum does not accept NEF (RAW) files. This is very strange, considering that this is a forum about software used for photos, which are mainly taken in raw format.
I tried changing the extension to jpg, but it says it's too big (about 80MB). Yet this is a feature of modern cameras.
I'll try to send you a link to a file hosting service so you can download it:
REMOVED

Obviously, the file is mine and is protected by copyright. It must not be distributed elsewhere.
Thank you.

Translated with DeepL.com (free version)

Thanks to your detailed description I can reproduce the problem.

...I'll try to send you a link to a file hosting service so you can download it:
REMOVED
...

Is it impossible to send a file?

If I understand correctly, will the problem be solved with the next version, 1.9.4?
I checked the XnView website, but it is not available yet.
Thanks. Bye.

massimo.peca wrote: Mon Sep 22, 2025 7:22 am If I understand correctly, will the problem be solved with the next version, 1.9.4?

The link in Pierre's post indicates that the issue will be fixed in the next version 1.9.4, the release of which will be announced in MP- Announcements .

As Pierre has now reproduced the issue there is no longer a need to send him a test file, but in general confidential test files are best sent as attachments to the contact contact@xnview.com email address on the xnview.com home page, with a post that you have done so.

This problem is supposed to be fixed in XnView MP 1.9.4. Please check and confirm the bug fix here.

xnview wrote: Mon Sep 29, 2025 8:02 am This problem is supposed to be fixed in XnView MP 1.9.4. Please check and confirm the bug fix here.

I have updated to the latest version, as you can see from the screenshot, but the problem remains for me.

and what do you have in settings>Formats>Camera RAW?