Focus stacking is a method for increasing depth-of-field in photographs, consisting in merging a set of photographs obtained using focus-bracketing. In this post I explain how it works, and why it is specially useful in macro photography. Continue reading Focus stacking
[post revised on 2017-10-21]
Definition and explanation
Before describing different types of “image merging” workflows, I will explain some terms that I will be using in this blog. Today I will explain the meaning of bracketing.
Bracketing consists in acquiring a series of images with different camera settings. The word bracketing comes from the idea that we have a target value for the setting, say exposure, and we acquire images with this exact target setting and settings both at slightly large and slightly smaller values (bracketing both “sides” of the target). At least three images need to be acquired for the meaning to strictly apply, but in some exceptional cases even hundreds images are acquired. Continue reading Bracketing