This tutorial to show how to use the Photoshot to create Vignetting effect on photos
I will be using Photoshop version 8.0:
1- Open your image with Photoshop.
2- Create a new layer by selecting New/Layer from Layer menu (SHIFT+CTRL+N).
3- Make sure to have the following color setting in the Tools
4- Fill the new layer with black (ALT+DELETE)
5- Use the Rectangular Marquee Tool (M) to draw a rectangular as the following
6- Select the Feather (ALT+CTRL+D) from the Select menu and enter a value between 100-200 pixels.
7- Hit Delete to delete the selected area
8- From the Layers palette reduce the Opacity slider value to the required level
And this is the final result