"When photographers want quality in their images, they know it starts with as much attention and detail as possible before the shutter clicks. We know we have post-production there to enhance the images, but it should be used like an artist with a fine brush, not like a construction worker with a jackhammer.
I am a big believer in the nondestructive workflow to its fullest degree and refer to my approach to this as “the way of the fast retreat,” which requires being ready for any change with the least amount of backtracking as possible. It comes after a career of working with advertising photography projects that need to have as many options for last minute changes as possible. We used techniques like creating HDR images from multiple exposures, stitching panoramic images, and depth of field image stacking to increase both the quality and dynamic range of our images. But the most important factor is to get the best possible original image captured. One way to maintain the highest quality in a photograph is the ability to control the image perspective before the image is taken."
Check out the entire article on the Canon Digital Learning Center for more info and example pictures.