What Is Focus Stacking, and When Should You Actually Use It?

There are some techniques in photography that are helpful to young image-makers. Pixel stacking helps you get to higher megapixel photos, while exposure stacking helps one to get properly lit images. Another example of this is focus stacking. For those keen on capturing images of insects or macro photos of a product of their choice, this is certainly helpful to learn. What is it, and what can it do? Here is a quick explanation of it all.