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Hasselblad HNNR noise reduction, workflow?

Hasselblad noise reduction for Phocus Mobile 2 software

Just a quick follow up on this “Wonderfull” new solution from Hasselblad. Note I am not sponsored by Hasselblad, thus I am going to net out the actual problems with this solution and not give you a blue sky, everything is great write up.

First the positive, the solution does work, and gives a very good result. From the images I have reviewed the noise reduction is very effective. It’s basically the same as Adobe’s Denoise. If you were able to work with this new tool on a desktop, then I would be most pleased.

The issues however are:

  1. You have to use a mobile device, phone or iPad. I assume only Mac devices work? I have not seen anything that shows Phocus Mobile works on Android.
  2. You are importing the original raw file into Phocus Mobile 2, from your camera. This takes up battery life of both the phone/iPad and the camera.
  3. You are given a few different options for the noise reduction and then Phocus Mobile outputs a new raw file .3NF with the noise reduction applied.
  4. I am sure that this product was rolled out via the mobile application since AI is being used. Phocus desktop is very old in it’s design and has not ability to communicate with the web. This is also how Adobe’s Denoise and other AI based tools work. They need the web to communicate with their database.

The problem is that Phocus Desktop software is not able to work with these files correctly. Phocus desktop apparently applies a certain amount of noise reduction to all raw files when they are imported into the application. I have always felt this to be the case and Hasselblad has confirmed it. So if you bring in a raw file that has HNNR applied to it, then Phocus desktop will apply more noise reduction to a file that already has had noise reduction applied. Thus you will get the painterly look to finer details. There is not a way to stop this and if you slide “noise reduction” sliders in Phocus desktop all the way to the left to -10, the effect is still there. The sliders DO NOT affect the “built in noise reduction” Phocus applied to the raw file when you imported it.

So now you are left with Adobe Lr or ACR to work on the file. Neither of these programs are applying “built in noise reduction” when you import the raw file. But now you are left with a problem. Lightroom/ACR cannot obtain the best color from Hasselblad raw files. I have worked many side by side examples of this and each time Hasselblad Phocus always give the best look to the files.

Phocus has a better color result and shadow recovery. Lightroom always seems to block out shadows and take blacks to a very dark range.

There is no word from Hasselblad as to if they are going to update Phocus so that it can use the HNNR raws without adding additional noise.

NET, Hasselblad brings a very effect AI based noise reduction tool out, however by using it you no longer can use Hasselblad’s Phocus Desktop software without over applying noise reduction, thus destroying finer details and possibly giving a plastic look to the images.

Hasselblad HNNR Noise Reduction, more details

Hasselblad announces New Noise Reduction for X2D via Phocus Mobile 2
Hasselblad Announcement on X2D noise reduction

From reading other photographers reports on the use of this tool, I have gleaned a bit more information.

  1. It appears that the tool works on both iPhone and iPad’s as the Mobile software apparently works on both platforms.
  2. To use the HNNR, you have to import the raw file from the camera (X2D) into Phocus Mobile 2 software.
  3. From the software on your phone or iPad, you then will see the raw file and can have the option to use the HNNR feature.
  4. I believe you get a before and after view, and it appears you have a few options as to how much noise reduction is applied.
  5. After you run HNNR, your 3FR raw file is PERMANENTLY altered. You cannot go back and remove the HNNR noise reduction. So it’s best to copy of the 3FR file to another card, import it into Phocus Mobile 2.0 and then send it back to the card on the camera. No iPad or iPhone can use a CF card so you have to do this via WiFi.

Issues that have apparently come up from users who have tried this feature HNNR.

  1. Phocus desktop software has an issue with these files in that it applies more noise reduction (more than likely the base amount) and then this causes smearing.
  2. Phocus desktop software has some issues with exposure in that the files that have been updated with HNNR appear too dark.

Amazing to me that Phocus, which is the stock Hasselblad raw software tool for both raw conversion and tethering has issues with another Hasselblad software feature. It’s as if one side of development is working and not talking to the other. WE ALL KNOW THAT THERE IS A BETA VERSION OF THE DESKTOP PHOCUS THAT GIVES YOU 400MP OUTPUT, so I wonder if this beta is being held up due to this new feature HNNR.

From others reports, it seems that Adobe ACR and Lr will import the the 3FR files with HNNR applied with no problems, and the noise reduction IS applied still. This is unlike any other imports of .FFF files which have been worked on in Phocus desktop software and all the adjustments made in Phocus are stripped when the .FFF is imported to Lr or opened in ACR.

My only hope is that by using the mobile version of Phocus and applying HNNR, some of the issues I have had with Hot Pixel noise will be reduced or totally removed. I am hoping to try out the software over the next few days with some images I took in the fall which have excessive noise in the shadows due to hot pixels.