Starbursts can be a wonderful addition to landscapes and night scenes. Set a narrow aperture like f/22, point your lens towards any small, bright highlight (such as the sun or a street lamp), and it can become a beautiful star shape.
However, using this technique poses a dilemma. The narrow aperture results in diffraction, where light spreads out along the aperture blades, causing the pinpoints on the star – known as ‘diffraction spikes’. In this instance, diffraction is our friend – but it’s also a problem, because it results in a softening of fine detail elsewhere in the scene. So do we capture the starburst and settle for a softer scene, or prioritize image sharpness? With a bit of simple image blending, we can have the best of both worlds.…