Intensity Scope Not Consistent

[IanBarber]

When using the intensity scope, I am seeing inconsistent results on Mac. I haven't tested on Windows.

Placing an object with an L value of 60%. Here is a quick example of what I am seeing.

Edited March 11, 2022 by IanBarber

[NathanC]

Hi @IanBarber,

I've tried to replicate this on a new file but i'm getting different results,

Could you attach the original file that you have used in your screenshots?

[IanBarber]

12 minutes ago, NathanC said:

Hi @IanBarber,

I've tried to replicate this on a new file but i'm getting different results,

Could you attach the original file that you have used in your screenshots?

Here is the file for you.

AP-Scope.afphoto

[Old Bruce]

This is a mismatch of using HSL on a Greyscale document. If you use a grey scale colour mixer you'll see 60% being 60%.

[IanBarber]

40 minutes ago, Old Bruce said:

This is a mismatch of using HSL on a Greyscale document. If you use a grey scale colour mixer you'll see 60% being 60%.

Unless I am doing something wrong, when I use a Grey Channel Mixer or Color mixer I am still not seeing what I expected

Edited March 11, 2022 by IanBarber

[IanBarber]

39 minutes ago, NathanC said:

Hi @IanBarber,

I've tried to replicate this on a new file but i'm getting different results,

Could you attach the original file that you have used in your screenshots?

Can you post the one you replicated so I can see what results I get

[Old Bruce]

3 minutes ago, IanBarber said:

Unless I am doing something wrong, when I use a Grey Channel Mixer or Color mixer I am still not seeing what I expected

What are you trying to do? What are you expecting?

Are you wanting the grey to be 60%?

I see you using the scope with HSL on a Greyscale document. Try using Greyscale with the scope.

What are you trying to do with the channel mixer? there is only the one channel plus the Alpha in a greyscale document.

Perhaps you are expecting something and are using the wrong values in a less than ideal set of tools.

HSL doesn't work well with neutral grey. There is no Hue to change, there is no Saturation to change.

[IanBarber]

If I have a grey object with a Luminance value of say 60%, I would have thought that the scope intensity value would read 60%.

Setting the luminosity to 100% makes the scope display 100 and setting the luminosity to 0% makes the scope show 0 but the values in between don't seem to represent properly on the scope.

[IanBarber]

17 minutes ago, Old Bruce said:

Try using Greyscale with the scope.

Bingo, thats worked. Thanks for pointing that out