Noritsu Color Model Selected, but Frontier Profile Applied?

Hi everyone,

I’m seeing something strange in Negative Lab Pro and I’m not sure if this is expected behavior or a bug.

In the NLP conversion window, I select Color Model Noritsu before converting. However, after the conversion, Lightroom shows the profile “Negative Lab v2.3 – Frontier” in the Basic panel.

I also tried creating a virtual copy in Lightroom and converting the same negative twice: once with Frontier and once with Noritsu selected. The results look identical to me. Because of that, it seems as if the Noritsu setting is not actually being applied, even though it is selected during conversion.

Does NLP still use the Noritsu color model internally and only display the Frontier profile in Lightroom, or is the Frontier profile actually being applied?

Has anyone experienced the same issue? If so, how can I make sure my negatives are converted using the Noritsu color model?

Thanks!

Welcome to the forum @Ingvar

All NLP profiles that I’ve used have the “Frontier” part in their names. Why that is the case and what it implies (and whether it should be changed) are things that only @nate can tell.

If you compare two images with Color Model set to Frontier and Noritsu respectively, you might see differences on screen and in exported files. Those differences can be seen easily or almost not at all. I consider this to be normal as NLP’s conversions base themselves on the data (images) we feed it with. This means that some images will show distinct differences, others will almost look the same and only the changes in the histogram tell a tale and others again, seem indistinguishable.

Examples:


Difficult to see differences with screens in the forum.
Conversions of bracketed images using Fro and Nor Models respectively.
Different image content leads to slightly different conversions.
(All images taken in 1978 on Kodak Gold 400,
all conversions set to LOW pre-saturation)

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Thanks for the explanation and the examples.

After taking a closer look, I can actually confirm what you’re describing. When I compare the histograms very carefully, there is a slight shift in the highlights between the two conversions. It’s probably too subtle for the eye to notice, but the histogram doesn’t lie.

I also have to admit that this is only the third roll I’ve converted with NLP, so I’m still learning how the software behaves. Thanks for your patience and for sharing your experience. It’s much appreciated.

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