How I use Nik HDR Efx Pro 2 with PhotoLab

one time tasks: create PL profile: lens-fix only, create HDR intermediate directory (I use c:/temp/HDR, but if you share your machine, it should be in your user hierarchy)

Then, in PhotoLab

  • select all shots in a bracket
  • apply lens-fix only profile
  • export as TIFF to your tmp-HDR folder (16 bit, no resampling, profile AdobeRGB, suffix ‘lfo’)

Run HDR EFX 2. (On my PCs, this is C:\Program Files\Google\Nik Collection\HDR Efex Pro 2\HDR Efex Pro 2 (64-Bit)\HDR Efex Pro 2.exe, yours might be elsewhere)

  • The selection window will open
  • select the lens-fix-only TIFF files you just exported from PL
  • choose appropriate HDR options
  • OK
  • HDR EFX will save a file in your temp HDR folder

In PhotoLab

  • open the new HDR TIFF file in your temp HDR folder
  • apply any settings you want
  • export a TIFF or JPG (PL will save to your temp HDR directory unless you pick a different one)

I’ve likely missed an important step (writing from memory, photo edit box is at home) Feel free to correct me :slight_smile:

Note, I leave noise reduction OFF in my ‘lfo’ profile, but I’m using FF cameras, and don’t need it for HDR. You may want it on - or even set to ‘prime’.

Hoping this helps someone…

I see there is now a DxO version of the Nik collection. If you use that, I imagine it will install to a different directory (and might sidestep installing both 32 and 64 bit versions on 64 bit machines). If you are using it, you will have to find the exe.


The only path difference with the DXO version is that it is now located in a DXO folder rather than in a Google folder. And I believe you can also chose to install it on a different physical hard drive. This is the path on my Windows 10 machine.

C:\Program Files\DXO\Nik Collection\HDR Efex Pro 2\HDR Efex Pro 2