How does HDR deal with the in-camera crop information?

sih59844784  wrote I'm using Lightroom classic cc to do some HDR merge. The camera sensor is 6000px*4000px, when I cropped it to 4:3 in camera setting (that is 5328px*4000px), while the raw is still 6000*4000. And then I do HDR in LR, the result turns out to be a 5328*3552 file (original 3:2 frame). If I don't do the crop in camera, the result turns out to be a 6000px*4000px file. I tried to set the crop back to "original" in LR before doing HDR, but it did not affect the result. Can anyone give some advice?

Lightroom honors in-camera cropping and you cannot simply undo that, so don’t crop in your camera, that does not make sense if you use raw files. There is a plugin to ‘uncrop’, however. It’s called ‘Adobe DNG Recover Edge’ (http://labs.adobe.com/technologies/lightroomplugins/). Maybe it works directly on the HDR DNG file, otherwise you will have to convert your raw files to DNG first, uncrop them, and then generate the HDR file.

The general advice is do all adjustments after merging as Lightroom ignores adjustments to individual files during the HDR process, except a few like lens correction. The process also includes some cropping if auto-align is selected. This link has a useful video:

https://helpx.adobe.com/ca/lightroom-classic/help/hdr-photo-merge.html