Why is my mask in PS semi transparent?


I am trying to remove part of an image, but each time I add a mask, that mask is always semi transparent. Opacity and Fill settings for the brush I am using are set to 100% and blending modes are set to normal.

I have never come across this before and I think I have tried everything. I don't know if this is a Photoshop problem or if there is a setting I should change. Any idea what is it?

Semi transparent mask

3/9/2016 7:03:00 PM

As sergeydyadyul suggests in the comments, please make sure that the colour you use to fill the black part of your mask is actually fully black. Not just CMYK 100%K black, a full 0,0,0 RGB black.

Especially with the colour picker, it's easy to accidentally select a very dark grey. Just drag the circle all the way beyond the edge of the picker to ensure a good black, or manually enter #000000 in hex mode.

3/9/2016 1:56:00 PM