Posted By RichC on January 18, 2011
I dropped one of our juice glasses on the hardwood floors this morning and it really shattered into small shards of glass … hopefully I’ve swept up them all. I was surprised at how small the pieces were, but then that’s really not the point of this post.
Really it was just an opportunity to “Photoshop” a couple of images in order to correct a low-light/existing-light depth-of-field photography issue. On the surface, most non-photographers may not have realized or notice that the above image has been tweaked. Those who understand depth-of-field focus issues realize that close focus and low light create problems for photographers wanting to keep everything in focus, although the “selective focus” technique is often used intentionally as well. (the longer the lens – telephoto, the more selective the focus)
In the case above though, I used two images to keep both a glass and the broken glass in focus. The simple technique is to use two points of focus and then sandwich (layer) the images together in order to create an image with both close and distant in-focus photos. Give it a try.