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This tutorial demonstrates how to emulate high speed film grain. To work along, download the image I am working with Here. Unzip the file and open the image onto Photoshop’s workspace.
Undo and Navigation Steps
Two ways of undoing steps are from the top menu, Edit then Step Backwards. Alternatively, click a previous snapshot in the History Palette.
Navigate (zoom in and pan) your image using the Navigator Palette,
or the Zoom Tool. 
Activate The Hand Tool by tapping the Spacebar, keeping the Spacebar pressed, pan your image in the usual way. 
1/
Open your choice of photograph onto Photoshop’s workspace.
2/
And create a layer above the Background image, by clicking the following Create a new layer icon.
3/
Then change the Foreground colour to the following grey. Lesson.
 
4/
Now, press Alt then your Backspace key to fill the new layer with grey.
 
5/
From the top menu, choose Filter then choose Noise then choose Add Noise. In the subsequent dialogue box, set the following attributes, then click OK.
 
6/
Now, change the noise layer’s Blend Mode to Overlay and reduce the Opacity to around 45%. Then duplicate the grain layer (Layer 1) by dragging it over the Create a new layer icon. (Chapter 2).
 
7/ Optional - Remove Colour
Working on the top grain layer, change its Blend Mode to Colour.
 
8/
You have created your high speed film grain; to strengthen the grain, increase the bottom grain layer’s Opacity - to reduce the grain effect, lower the Opacity of the same layer.
9/
To finish, from the top menu, choose Layer then choose Flatten Image, then save your work
Wendi E M Scarth. Top of Page - Home.
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