• [Light pollution reduction + soft effect in one piece. This filter contains the effects of Starry Night and Prosofton, which are often used during stellar photography • Effect 1. Light pollution reduction effect by reducing color chips caused by street lighting: The night sky is colored in yellow or orange due to the effect of streets such as sodium lights and mercury lights, but the Starry Prosofton allows natural color reproduction by cutting only the light of the specific frequencies • (Effect 2. The scenes and backgrounds remain clear, and the soft effect makes the zodiac stand out) The soft effect of blending bright stars beautifully and raising the constellations. Starry Prosofton is equivalent to "Pro Soft on Clear". It only has a soft effect on point light sources such as stars, and does not affect the surrounding scenery, so it is suitable for starry photos or when you do not want a soft effect other than stars • (It is effective for 2 sheets per piece, so it is less prone to vignetting and is recommended for shooting with a wide angle lens) This "Starry Prosofton" exhibits the effect of 2 filters in 1, and it reduces the risk of overlapping and flare • (Limited Packaging) This is an exclusive model that uses a filter case that differs from the usual specifications in the packaging