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Luminar 4.1: a worthy improvement?

Luminar 4.1 AI Sky Replacement

The new update to Luminar 4 is here. It’s a minor update but it brings a couple interesting features and a few fixes.

If you are remotely into photography you must have least heard of Luminar. Particularly with the last milestone, version 4, their marketing campaigns have been quite aggressive in trying to build hype.
Skylum went all in with the promotion of their Artificial Intelligence. And one of the most discussed features is certainly the AI Sky Replacement.

The day Luminar 4 launched I went live on my Instagram @fabienb for a long 45 minutes session. During the live, I tested first-hand with my followers all the software features.
I had purchased the previous versions of Luminar (and AuroraHDR) but I always had mixed feelings about Skylum. I said to myself I would not buy their software again for I didn’t need it in my workflow. But I was curious to see this AI in action.

During the live session I noticed quite a few flaws in the AI Sky Replacement feature, their number one selling point. The other AI tools were actually much much better and I could see myself using them, just not this one. And in the end I sentenced that it was not worth buying.

Now, has Luminar 4.1 improved?
Let’s start again with the flagship AI feature.

AI Sky Replacement

I’m sure you have seen a few YouTube videos showing how you can now replace the sky in a photo with a single click. And yes, on paper this is quite an interesting tool. Particularly if you shoot in a rather dull sky, you can turn a photo into something a lot more interesting in seconds:

Luminar 4.1 AI Sky ReplacementLuminar 4.1 AI Sky Replacement

Note that the AI also fixed the distortion and recoloured the scene accordingly. That’s surely interesting, isn’t it?
With the Luminar 4.1 update, a new Atmospheric Haze tool has been introduced, which provides more finesse to the end result. That’s good.

But it does work well only when the sky is flat. If a scene is more complex it’s a completely different story.
When there are trees with lots of see-through gaps in the foliage or when there’s a reflection, like water, then the AI is a lot less smart:

Luminar AI Sky ReplacementLuminar AI Sky Replacement

I replaced the sky with something crazy so you can easily see how the reflection stays absolutely intact.
So it’s hit and miss depending on your needs.

Also, the interface of this specific tool is not great and feels rushed. The filters, or “Looks”, all show a thumbnail of how the modified image will look like. And if you scroll through the library of LUTs you can see a preview as well. This is not the case with the AI Sky Replacement, even in the 4.1 update.
And when you use your own sky, Luminar 4 doesn’t add it to the library so you have to browse and reapply every time.

The other downside is that lazy photographers might only use the default library included. And therefore we’ll start to see a lot of images that all look the same.

AI Enhance and AI Structure

As I mentioned earlier, I think the other Artificial Intelligence tools are much more refined and work better.

AI Enhance is an all-in-one tool that analyses the image and improves the overall contrast, tone, saturation, exposure, etc. If you don’t take it too far, it can yield pretty good results straight away.

AI Structure adjusts detail and clarity. The AI aspect is effectively content-aware: faces and skin look natural even when you crisp up the objects around considerably.

Here you can see how I have applied all tools, including AI Sky Replacement. I took them to the extremes to better show you: notice how the skin on the girls is not affected. Even if the lavender appears a lot sharper.

Luminar 4 AI toolsLuminar 4 AI tools

If I wanted a fast solution to improve an image with zero effort, this would be it. I just need to be careful not to abuse it because the photo can turn “fake” quickly.
Bear in mind I pushed this to the limit for demo purposes, otherwise it does a good job and the AI feels smart enough to get it right.

Skylum also added another new feature with the Luminar 4.1 update, which is the Erase panel. It helps removing dust spots and some objects and can be effective over simple backgrounds. I used it in the image above just to remove a couple in the field as an example.
It’s comparable with Lightroom’s but Photoshop still has the edge here.

AI Skin Enhancer

The last of the AI tools is the AI Skin Enhancer. This is obviously targeted at portraits and works with groups as well.
In this Luminar 4.1 update, Skylum didn’t add anything new to this tool so I’m simply showing you the quick before/after comparison.

Luminar 4 - Alen Palander portraitLuminar 4 - Alen Palander portrait

I don’t have too many portraits to use, but I had this one of Alen Palander that I shot when we met here in London. You might remember I mentioned our meeting at the end of this post.
He portrayed me in his video (together with other fellow Instagramers) so it’s only fair I return the honour ๐Ÿ˜€

Again, this is a tool that shouldn’t be pushed too far otherwise you’ll end up with a fake porcelain doll skin. Even in my example I have gone a bit over (and I have not done anything to correct the colour cast or used masks either). But Skylum did well with this tool too, and it’s something you can only achieve in other softwares via paid plugins.
Just be subtle.


Having used Luminar 4 for a little while now, I think in the end it’s better than what I concluded in my Instagram live.
If you don’t yet use another paid software and are looking for an all-rounder that can make your photos Instagram-worthy, then this might be the one. It has a low entry point, thanks to the automation of the AI tools, but can also become more advanced with the use of masks.
And it has features that might be worth using for the sake of a rapid editing even if you already use another software (and works alongside it). For example you might want to use this “jack-of-all-trades” rather than relying on a plugin that might get discontinued (you know, like in the Nik Collection saga).

Luminar 4 Box

To Fujifilm photographers, this is also a software that interprets the Fuji RAW files quite well. Even Lightroom didn’t get that right until the recent updates and DxO PhotoLab is incompatible altogether. So it’s good news and there may be some benefits on this front as well.

You will find all the info on the Luminar 4 website.
Give it a go.

And if you’d like me to dig deeper into other apps as well, just comment down below.

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