I have an example of three bracketed exposures, 0, +3EV and +6 EV, for the purpose of merging to HDR in Lightroom. With no auto tone adjustment selected, the resulting dng image looks pretty much identical to the middle exposure at +3EV. This is not what I expect a merged HDR image to look like.
Here are the images in survey view, the top left is 0EV, top right +3EV, bottom left +6EV and bottom right the merged dng HDR image. The two images on the right look the same to me.

I'd appreciate it if someone could enlighten me as to what HDR merge in LR really does other than create a new dng file with an expanded exposure adjustment range. It's certainly not merging reasonably well exposed parts of the images, which is what I had assumed HDR merging would do.
Here are the images in survey view, the top left is 0EV, top right +3EV, bottom left +6EV and bottom right the merged dng HDR image. The two images on the right look the same to me.

I'd appreciate it if someone could enlighten me as to what HDR merge in LR really does other than create a new dng file with an expanded exposure adjustment range. It's certainly not merging reasonably well exposed parts of the images, which is what I had assumed HDR merging would do.
Jeffrey Tranberry, Sr. Product Manager, Digital Imaging
Anthony Blackett
Jeffrey Tranberry, Sr. Product Manager, Digital Imaging
Anthony Blackett