This is the optional guide which supports session 15 of Celia Henderson's What Why How / Menus and Panels Photoshop workshops.
It is a detailed guide on the tools & features which Celia covers in the session and can be downloaded to be kept/printed, etc. It is yours to keep.
I will guarantee you enjoy these hand outs - I will refund you if you do not!
Ready to master one of the most powerful, yet least understood, tools in Photoshop?
In Week 15, Celia takes us on a deep dive into the Channels Panel. If you have ever struggled to make complex selections like isolating a tree with hundreds of tiny leaves against a sky or wondered exactly how the Curves adjustment layer manipulates colour, this session is for you.
This 13-page guide strips away the technical jargon to show you exactly how Photoshop sees colour and how you can use that information to make flawless edits and intricate masks.
Inside this 13-page guide, you will discover:
Understanding Colour Channels: A clear, visual breakdown of how Photoshop separates an image into Red, Green and Blue (RGB) information channels and what the black, white and grey values actually mean.
The Colour Wheel Decoded: Learn the relationship between additive primary colours (Red, Green, Blue) and their subtractive opposites (Cyan, Magenta, Yellow) to make precise colour corrections without the guesswork.
Mastering Curves: See exactly how dragging the Curves adjustment line directly impacts the individual colour channels to alter brightness and contrast.
Precision Colour Matching: Follow a brilliant step-by-step recipe to completely change the colour of a flower (e.g. matching a red tulip to a pink one) using targeted channel adjustments.
Creating Alpha Masks: Learn the professional method for cutting out complex skies. You will discover how to evaluate colour channels for the best contrast, duplicate them, and use the Levels tool and Brush tool to create the perfect black-and-white selection mask.
https://www.camversation.co.uk/event-details/photoshop-unlocked-the-hidden-power-of-menus-panels-celia-henderson-2026-01-12-13-00
