Opacity slider controls how much is visible of layer content. 100% is everything visible, 0% nothing visible, 50% you can see through.
It means how transperent the image is.
Opacity is the transparency of your layer that is featured. It is useful for safe editing in Photoshop, opacity is used to 'dim down' a certain object and is commonly used in masking to see layers behind the layer that uses opacity. Higher opacity will make the layer more opaque. Lower opacity will make the layer more transparent. Hope this helps :)
It not capacity it OPACITY. Opacity is the control of how visible the layer or action of the tool is i.e lowering the opacity of the brush makes the line drawn seem more transparent
The opacity determines how transparent a layer in Photoshop is. Setting the opacity at 0% will make the layer completely invisible, revealing any layers underneath it. Setting the opacity at 50% will make the layer half visible, making both the layer, and the layers under it equally visible. Setting the opacity to 100% will make the layer completely visible, anything under it will be completely covered. This can be useful when changing eye colors, as if the color you've changed the eye to looks too unrealistic, you can lower the opacity to allow the original eye color and detail to show through, which can make for a more realistic effect.
Opacity affects everything on layer including layer effects while Fill does not affect layer effects applied. For more details and explanation visit link from related links section below this answer,
Use the oval tool, then double click on the layer and set the "fill opacity" to 0 and add a stroke. Mark
Select layer you want to make transparent, then in top right corner of Layers panel type 0 in text field next to Opacity, or click triangle on right side of Opacity to expand slider and drag it to the left till you see 0%. Every new blank layer created in Photoshop is also transparent (Layer > New > Layer...).
opacity
The basic code would be to set the opacity low then make use of ':hover', in CSS this is:.trans { opacity: 0.8; }.trans:hover { opacity : 1; }You can use test in your HTML code to test if it works.The following code is designed to work across all browsers:.trans{filter: alpha(opacity=80);-khtml-opacity:0.8;-moz-opacity:0.8;opacity:0.8;}.trans:hover{filter: alpha(opacity=100);-khtml-opacity:1;-moz-opacity:1;opacity:1;}
put each photo on a differnet layer with the top photo the one you want to be transparent - then use the opacity slider in the layers pallet to adjust amount of transparency (or opacity) on the top photo layer - 50% is an equal blend of both photos and 100% is no transparency - make sure the you have the correct layer selected when adjusting opacity (the top one)
Fade from Edit menu allows you to change Opacity level and blend mode of layer after painting for example using brush tool or applying filter from Filter menu.
To change the opacity of a certain fashion, click on the large arrow on your right. Then click the part of the fashion you wish to change the opacity of. An opacity bar will show up on your right, use it.