[RAW-Working with Luminance]

Serif has not implemented something comparable to the Snapshot function in LR.
However, what you can do is to create a batch job and apply a macro to your pictures you have previously recorded (Menu File => New Batch job...)
There exist several videos in the internet about this topic. Simply look for "affinity new batch job" on youtube.

Now, I try to upload my aphoto file again,  I hope it works now, sorry I'm a newbie in this forum here...

I think the 3 Affinity apps are a good choice when you want to say goodbye to Adobe. Not only from the financial point of view (3 x 28 € for all 3 apps vs abo) but also regarding the file format that is identical for all 3 apps. So you can switch easily between the apps without saving, converting, reopening and so on.

 

RAW-Working_with_Luminance.afphoto

[RAW-Working with Luminance]

Hi Andreas7310,

I was looking for the same functionality. I don't think that there exists a comparable method to do that with a few klicks in Affinity Photo (AP). But I have loaded your image into AP and did some adjustments with comments in German language in the layers tab (file is attached to this posting). OK, I have to admit that it was much more difficult than just reducing the luminance of some specific colours like in Camera RAW, but if you know where you want to end up with your image you just have to select the right tools to get there. Of course, the procedure cannot be used not universally for all images. But if you start editing your pictures you always have to think about what exactly you want to change. And AP is so powerful that you mostly get the result you want - even if you need some klicks more that in Photoshop. But believe me, there are many things where AP allows you a much smoother workflow than Photoshop, i.e. the blend options.

The Serif guys do a great job and I think they will add permanently new features to their products. Perhaps luminance variations of specific colors would be one of them. You can suggest it in the "Feature Requests & Suggestions" section of this forum if you want.

RAW-Working with Luminance.afphoto

If anybody knows a more convenient way please let us share.