David Saffir: Blending Macro-Images For Depth-of-Field
Jun 2013 04

One of the most intriguing tools in Photoshop is layer alignment and blending. One practical use for these is macro photography – you can create images that have depth of field that is nearly impossible to get in a single frame.

Why? Because a 105mm macro lens on a full-frame camera has depth of field of about 0.6mm at f/16 – in other words, a very, very thin slice. Combining multiple images with different focal points gives us – voila! … a merged macro image that should be completely in focus, front to back, near to far.

[Read More]