Simulate Neutral Density Filter in Photoshop
Useful when some of the image is in the sun and the other in shadow usually making a difficult exposure without filters. We usually see this problem if we have a bright sky in the image.
Download images to practice the technique yourself.
(Note: You have to have a Dropbox account to make the download in the PDF work.)
Click here to see the pdf: Simulate Neutral density filter in Photoshop
Sample images used in the tutorial (Right Click Image to Download to your computer)