HDR images involve taking several images of the same subject in a row with different exposure times, which are then converted into an HDR image.

This calculated HDR image can be saved in a normal image format such as JPEG and used for the image gallery in WebSite X5.

----- Screenshots from this website  -----

So funktioniert HDR Fotografie

(English: This is how HDR photography works)

>> https://www.stefanopaterna.com/so-funktioniert-hdr-fotografie/ (German website)

Thank you for your reply, what you wrote is correct, but I see that I wasn't clear in my description of 'HDR'. What I mean is HDR in the sense of an extended dynamic range actually shown on the monitor, not the technique you describe which visually compresses the extended dynamic into the classic range a standart jpg offers. Obviously both is called 'HDR'. Lightroom has a new function which offers this extended dynamic range for pictures and it looks amazing. It does need HDR compatible monitors, file formats and browsers. I tried avif, jxl and jpg with HDR embedded as file formats and avif is the only format I can just pull into chrome and it opens as a HDR picture - so I guess this might currently be the best format.

I'm generally fine with the photo gallery function in websiteX5, but it doesn't accept avif or other HDR formats as it is now.

Adobe offers web galleries, this is an example: https://lightroom.adobe.com/shares/113ab046f0d04b40aa7f8e10285961a7
but I would rather be independent from them and host the pictures on my own webspace with my own formatting.

... the images in that lightroom.adobe.com  gallery are normal JPEG  files...
... other things that have nothing to do with the site are the extensions for editing in the appropriate graphic editors...

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