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Old 23rd January 2018
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Re: Editing Challenge No. 3

Originally Posted by Bikie John View Post
Put simply, screen mode will generally lighten your image, overlay (which is NOT the same as Normal) will darken it.

The way I understand it is that in "normal" mode you just see the layer on top. You reduced opacity which enabled some detail from the layer(s) below to show through.
Sorry, problem with terminology. I hadn't realised that there is an "overlay" mode with a different connotation. Yes, I reduced the opacity to get some of the original details showing as I didn't want a block orange colour.

Originally Posted by Bikie John View Post
If we think of an image with just two layers, to preserve a little bit of sanity:

For the effect of "screen" mode, imagine that each of your layers is on a slide in its own projector, and they are pointing at the same screen. This means that the lighter parts of each layer will lighten the overall image.

For "overlay", imagine an overhead projector with each of your layers on a foil - and you put one foil on top of the other. Or if you prefer, jam your two slides together in the same mount. This is not quite the opposite of screen, but the effect is that the darker parts of each layer darken the overall.

Multiply mode can also be interesting, although probably not relevant here - it combines screen mode for the lighter bits and overlay for the darker bits, which has the effect of increasing contrast.

Hope this is clear and helpful .... John
As clear as ......
Actually reading it twice does help but whether I will remember is a different matter - there are 25 different types to choose from in my version! Thanks.

Edit: just found this useful link for a short 8 minute you tube tutorial on blending modes from the "Photoshop Training Channel".

and the longer 41 minute version
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