Negative Lab Pro v2.4 - Saturation Control, Faster Conversions, More Precise Editing and much more

Hi friends,

I’m thrilled to introduce Negative Lab Pro version 2.4. :tada::tada::tada:

This is a FREE UPDATE for existing users (look out for an email link!)

And if you’re still trying out Negative Lab Pro, this new version will give you 12 fresh conversions to try it out. You can request a download here .

What’s New

Version 2.4 brings a number of enhancements, new features and fixes. Here are a few of the biggest improvements.

  1. Saturation Control
  2. Faster Conversions
  3. Border Buffer Preview
  4. New Installers for both Mac and Windows
  5. New PDF guides
  6. UI Improvements
  7. Support for additional cameras and scanners
  8. Loads of Bug Fixes
  9. Getting ready for v3.0

1. Saturation Control

At long last! Users can now edit saturation after their conversion without leaving NLP.


This is super useful for anyone who wants to keep their entire workflow RAW, but who were previously creating positive copies just to adjust saturation.

The control lets you make beautiful saturation adjustments with no color shifts, and integrates perfectly with other adjustments in Negative Lab Pro.

NOTES on saturation:

  • Saturation control requires LrC 9.0 or newer. It is not available for historic LR6 users because LR6 is missing features necessary for it to run.
  • If a negative was converted with a version of Negative Lab Pro prior to v2.1, you may need to reconvert in order to take advantage of saturation.
  • The default saturation level is 5, which leaves saturation untouched. You can increase saturation as high as 10, or as low as 1. Each unit of saturation change in NLP is equivalent to roughly 7 units of saturation change in Lightroom.

2. Faster Conversions

I’ve been retooling and optimizing some of the internals of the conversion engine to squeeze out as much speed as I can. And with v2.4, you should see up to a 2x increase on speed of conversions versus previous versions. :raised_hands:

Check out the difference in this video!

3. Border Buffer Preview

Using border buffer can make the conversion workflow faster, because with it you can avoid needing to crop your image prior to processing it. BUT, it wasn’t entirely clear how much border area was being excluded from the analysis.

Border Buffer Preview takes out all the guesswork!


When you select “Preview,” the image will crop in to show you the area that will be evaluated. So you can check and make sure that ONLY the exposed film emulsion is being evaluated.

As a reminder, you don’t want any of the following showing in the preview:

:no_entry_sign: No Sprocket Holes
:no_entry_sign: No Film Holder
:no_entry_sign: No Direct Light Table Light
:no_entry_sign: No Visible Borders

Notes on Border Buffer Preview:

  • There’s no need to unselect the preview before conversion (in fact, it will run just a hair faster if you leave preview selected). After conversion, the crop will automatically reset to the crop you had prior to opening NLP.
  • This setting is sticky, so it will remember whatever setting you used last time. So after enabling “Preview” it will automatically enable preview on subsequent conversions.

4. New installers for both Mac and Windows

The new installer should make the installation (and upgrade!) process much simpler for both Mac and Windows users.

For both installation and upgrade, just run the installer and it should handle everything for you.

  • A much, MUCH simpler process
    There is no longer a need to manually move around files or add files into Lightroom. Just run the installer, open Lightroom, and start converting!
  • Automatic Shortcut/Hotkey installation
    The installer will also add the Negative Lab Pro Shortcut/Hotkey shortcut to your system.
  • Auto-close Lightroom
    The installer will check to make sure that Lightroom is not running before running the installer (this is crucial for updates to work properly).
  • Ensures compatible Lightroom Settings
    The installer will check and make sure your Lightroom settings will work with Negative Lab Pro and let you know if anything needs adjusting.


  • If you get a notification that “Windows Protected Your PC”, click “More Info”, then “Run Anyway”. The installer includes my certified developer signature, but you may still see Windows Defender throw a little fit (thanks Windows).
  • If you get a warning that the “package is damaged,” try downloading the zip file again using a different web browser.

5. New PDF Guides

Also new in this download are new PDF guides. There are two PDF guides included.

Quick Start Guide PDF
The quick start guide walks you through the installation process, first conversion, editing tips, and where to find additional resources.

What’s new PDF
This PDF covers some of the new features in v2.4, great for quick reference.

6. UI Improvements

Sensitive settings now include arrows to increment the settings.


7. Support for additional cameras and scanners

:camera: RAW Camera Profile support in now in line with the latest profiles supported by Lightroom Classic up to 12.0 (October 2022).

8. Loads of Bug Fixes

Here are just a few of the bugs that have been squashed… for this reason alone, it is highly recommended to upgrade to this new version.

:lady_beetle: LrC 12 Conversion Display Issue
LrC 12 introduced an issue that sometimes prevents the display from updating immediately after a conversion. The image has converted, but the display will not update until the user moves a setting. This should be fixed in v2.4. If you continue to have erratic display issues even after the update, go to “Preferences > Performance” and turn off any GPU acceleration.

:lady_beetle: Tiff Compression
You may have noticed that the lossless compression on TIFF positive copies was not reducing file size. This has been corrected.

:lady_beetle: Compatibility with Images Converted in Earlier Versions
If you experienced an error where it wouldn’t open up files processed with prior versions, that should be fixed in this update.

:lady_beetle: Reset Button
The “reset” button now correctly resets the settings in all sections.

:lady_beetle: Corrections to Phase 1 camera profiles
If you are using Phase 1 cameras to digitize your negatives, there was an issue on the previous profile update that is addressed with this update.

9. Prep for v3.0

This update also includes important changes under the hood to prepare for v3.0.

What will be in v3?

  • Preset Management
    In version 3, you will be able to save, name, edit and load your own Negative Lab Pro presets. You will be able to set a “default” color presets, as well as a “default” black and white preset.
  • Roll Analysis
    Roll Analysis in v3 will provide you MAJOR improvements in conversion accuracy, especially for frames that contain little context, bright portraits, back-lighting or non-daylight lighting. You will be able to define rolls based on your selection, folder location, or film metadata. You will be able try roll analysis on previous conversions without the need to reconvert.
  • Much More - I can’t give away everything I’m working on :wink:

Is V3 included in prior purchases of Negative Lab Pro?

For purchases made prior to October 1st, 2022, V3 will be a $49 upgrade.

All purchases made after October 1st, 2022 will include V3.
So if you purchase now, V3 will be included as a free update.

When will V3 be ready?

I’ve been parallel pathing the features in v3, so it’s not too far away… I’m hoping to get into initial beta testing around Black Friday, with the final release happening around Jan 1st. For those looking to upgrade, I do plan to have pre-purchase available starting Black Friday!

Questions and Comments?

“How do I download v2.4?”

If you own Negative Lab Pro, or you’ve downloaded it in the past, you will receive an email with a download link. If you don’t receive this email, you can try this link.

If you are trying out Negative Lab Pro for the first time, please use this link to request a download.

“How do I install the upgrade?”

The download will contain a ZIP. Just unzip the file, and run the included installer.

Do I need to reconvert conversion made with a previous version of Negative Lab Pro?

That depends on what version you used to make the previous conversion. For any conversions made with v2.1 and earlier, I’d recommend reconverting so you can take advantage of saturation and some of the profile improvements in recent versions. For conversions made with v2.3, there isn’t a need to reconvert.

The profile still says “Negative Lab v2.3”, is that right?

Yep, that still the latest profile version. The underlying RAW profile doesn’t necessarily change between versions.

Issues And Fixes

The latest update (v2.4.2) includes a number of fixes to issues that users had with v2.4 (thank you to everyone who helped get these solved!).

If you are experiencing any issues, please check this thread:

Thanks everyone!



Nate, this update is awesome! Already tried beta4 yesterday (Jesus, what an improvement!)… now can’t wait to grab a new cupo’ tea and install the new final :grinning:

Thank you so much + regards

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Hi guys,

If you experience any kind of issue or error with the installer or with v2.4, please discuss in this thread here:

This will help organize and share issues that have already been fixed in current release(or have steps to resolve). I’ve archived already solved issues into that thread.

Hello! Do i have to uninstall version 2.3 before installing this new update?

No, there is no need to uninstall v2.3 prior to running the installer.

Would it be possible to still provide the option to download the plugin as a directory, not as an installer? I would prefer to keep NLP in the same directory as my catalog and all my other plugins—they are all stored on an external drive so I can use it between multiple devices.

Appreciate your continued attention to this great product!

Please don’t obsolete those of us that refuse to go beyond LR6!

Well, I must admit that I am also a bit concerned regarding the last remark of “Thatspec”. Will there be more features within Version 3 not available for LR 6.14?

For NLP-version 2.4.1 I have to say that the new installer works perfectly and is a real benefit compared to the manual installation of the older versions.

As the installation directory of 2.4.1 now is among c:\users\xxx\Appdata.… the old directory which was built manually within c:.… is no longer used so I got rid of it.
Maybe this could be mentioned within the Quick start guide.

Best regards

V3 looks very promising. Hope one day scratch and dust removal for HDR raw scans in Silverfast will be added to the feature list… but one can dream :sweat_smile:

It’s a bit unfortunate that I bought NLP one week before the free update cut-off though…

My pleasure :slight_smile:

Of course! I always keep LR6 users in mind and support features as much as I can!

As Lightroom Classic adds new features, though, it enables me to add new features to Negative Lab Pro. So there are some things that simply aren’t possible with LR6 due to the limitations of LR6 itself.

Awesome, thank you for that feedback! :pray:

Preset Management and Roll Analysis both will work on LR6. :+1: The main thing that won’t work on LR6 is anything that has to do with LUTs, simply because LUTs weren’t added to Lightroom until LrC 9.0.

Yep, that’s fine to do!

Yep, after running the installer, if you want the plugin in a different location, you can do this:

  1. Close Lightroom (important)
  2. Move the plugin folder from the default install location below to a location of your choosing.:
    Windows users → “*C:\Users\xxx\Appdata\Roaming\Adobe\Lightroom\Modules*”
    Mac users → “Hard Drive/Library/Application Support/Adobe/Lightroom/Modules/”
  3. Open Lightroom. Go to “File > Plugin Manager.” If you don’t see Negative Lab Pro, click "add’ and then navigate to the new folder you’ve placed it in, and add it.

Hmm, if you go to “preferences > presets,” do you have “Store Presets with Catalog” checked or unchecked? If it is checked, try unchecking it, and restarting Lightroom. Let me know if that resolves the issue. If not, please email me at with more details on your system (OS version, LR version) and any other relevant details!

Is this a final v2.x release? In the v2.3 thread you mentioned v3 is coming Black Friday and will have a cost to upgrade.

I’ve been holding off purchasing for a few months waiting for the v3 so I don’t have to pay immediately to upgrade.

Edit: Just saw the FAQ entry now. Thanks for honoring purchases now for v3, makes the decision easy for me

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So I have 2.4.1 installed but in the advanced tab in ‘Engine settings’ it still says v2.3
The new features are there but I just want to be sure I updated correctly.

Hey Chiron – That’s all correct. V2.4 is based on the colour engine of v2.3 so you’ll still see that version number on the Advanced tab.

Ok great! Thanks for the info

Hello Nate.
Thank you for your hard work.
The update is installed and everything works. But a little embarrassing, what is in the picture. That is how it should be? Saturation 5 - skipped?

Hi @Vladimir ,

These aren’t meant to be accessed directly, but rather when you make some changes in Negative Lab Pro, it calls the correct ones automatically. I wish I didn’t have to do it this way (believe me it is a major pain) but there are some gaps in the current Lightroom SDK, so this is the only way I can do it unfortunately. You can just close that whole panel.

Sat 5 is the default. So for instance, “Negative Lab v2.3 - Frontier” is at the default saturation level.

Again, you don’t need to use that panel at all. Negative Lab Pro will do it for you.


Thanks for your reply, Nate.
I have a really atypical workflow…
The program is excellent… I will buy version 3.0 right away!

Hey Nate,

This update sounds freaking awesome! Also, I’m glad to finally see that you’re charging for an update - we all need you to be able to keep going, and I’m happy to pay what it costs to help ensure this tool has a future.

Thanks again,



one short question I wondered about with the new update… why is it now just possible to adjust the saturation of the LUTs and not as before to choose the intensity of the LUTs itself as well? changing the saturation seems for me not having the same effect as adjusting the percentage in the past which I found pretty useful.
thanks a lot


It isn’t feasible currently to have both a “Saturation” and “LUT Intensity” preset. (In theory it should be feasible, but there is a glitch in Adobe’s SDK that is preventing me from doing it).

I opted to include Saturation because (1) it was very highly requested and (2) it is possible to adjust the intensity of the LUT in Lightroom itself now (see the “Amount” slider in Lightroom just above the presets). Just be aware that if you change the amount slider in Lightroom, and then open Negative Lab Pro, it will reset the amount slider back to 100%, which I recognize is annoying, but still possible to work around.


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