How do you change the opacity of a layer mask?

I've created some complicated masks using black. I now want to change the opacity of the mask so it behaves like a grey, nog black. I do not want to change the opacity of the layer the mask is on, only the black/white mask itself. How is this done? /Dan

Click the mask, hit Cmd-L (levels), adjust the black point to make the black 'gray'. It will then show more of the layer. You can also tweak the contrast of the mask this way.

interesting got to try that!!!

René Damkot wrote in post #3155990
Click the mask, hit Cmd-L (levels), adjust the black point to make the black 'gray'. It will then show more of the layer. You can also tweak the contrast of the mask this way.

VIOLA! Fantastic. Works great. In fact, in addition to adjusting the mask opacity with output levels, I discovered that by adjusting the levels controls on top you can tweak the feathering on the mask edges.

Rene, you always come up with great photoshop answers. I'll bet if I asked you how to use photoshop to design a naqahdah generator to power a starship you'd be able to do it in 3 easy steps.

You could also switch from masking with black to a tint say 50% or 40% etc. of gray.
that way if you want to maintain parts with the 100% black and some with just the lower opacity in the same adjustment.

So the same layer mask will have both black and various tints of gray revealing various degrees of the image below the mask.