Here are examples of stacked Damselfly images to show the difference between stopping down to f/22 or f/32 for depth of field and maximum focus of the subject Damselfly resulting in a busier background , or using f/5.6 or f/8 with stacked focus points giving depth of field and focus of the Damselfly and yet yielding a smoother looking background. All examples were aligned and stacked in Photoshop. One “BIG” challenge is hoping the damsel does not move or “flyoff” before you are done. The female Eastern Forktail stands out against the green soft background more than the bluish male. Focus Stacking is great for maximum depth of field and focus on your subject if that is what you are trying to convey. There are times when a narrower depth of field is more “Artsy” or “Softer” look and gives a different feeling for what you are trying to show.