[burn tool is dodgy]

oh, that's correct, it doesn't happen with a new file.
This is not coming from the brush since I can move from one opened  file to another and get a different result.

I have attached the file in case that helps.

Thank you for your swift reply.

 

 

unexpectedBehaviourBurnTool.afphoto

[burn tool is dodgy]

I've just updated to the latest version available.
The burn tool has the effect of a dodge.

[burn tool doesn't give me pure black]

Spacing was set to 15 in my case.
You're right if I insist a lot, it can get a bit darker. Maybe it's got to do with the maths handling the value multiplication and it's not a setting issue.

Thanks for trying.

[burn tool doesn't give me pure black]

Thanks for the suggestion but not really, it can result in unwanted smudges


 

[burn tool doesn't give me pure black]

In affinity photo, I'm using the burn tool to cleanup a noisy background but I don't manage to get some pure blacks.
Any idea what I'm doing wrong?

[How to set exact size of object]

I am aware of the transform control, but is there a way of setting the size of a rectangle on creation?
In photoshop you can double clic the tool in the tool bar, which prompt a creation window where you can enter the desired dimensions.

If I'm only using the transform, I need to drag a rectangle at whatever size, then go over the transform panel to adjust its measurements, which is less efficient.