Imagine spending a warm spring night with your friends around a campfire, going with your date to a festive illuminated park during a cold winter evening or watching a raindrop calmly running down a flower after a summer storm. These scenes create a special feeling of coziness and ease - a feeling that flickers like a warm spark inside of us. We have created this filter to give us the chance to show this feeling of warmth in our photo. The filter is designed to create moderately sized light beams from light sources while gently enhancing them, letting them appear like tiny sparks and creating a warm and joyful atmosphere just like the feeling inside of us. Get to know the HOYA SPARKLE. Conventional cross filters may appear with overly long light beams, cluttering and totally overloading your photos. Rather than letting the cross effect take over your photo, the HOYA SPARKLE aims to create a joyful atmosphere subtly through creating only moderately sized light beams. While doing so, the light sources themselves are also being gently enhanced, creating a perfect balance between strength of the light source and length of the light beams. The HOYA SPARKLE 4X is a filter that absolutely shines (literally) in night sky photography. Through taking the light sources of brighter stars and converting them into 4-pointed stars, the SPARKLE series creates a simply beautiful and mesmerizing effect in your photos - creating a new standard for astrophotography. In the absence of strong light sources in the composition, the HOYA SPARKLE produces a soft effect in your image, creating a dreamy atmosphere. This is especially recommended for portrait, flower and landscape photography. You can further strengthen the soft effect through increasing the focal length towards the telephoto end! Digital multi-coated glass allows a max. surface light reflection ratio of 0.5%. Black-rimmed glass minimizes random reflections inside the frame. Knurling makes it easy to attach and remove the filter. UV absorption filter case. Thin frame design to minimize vignetting even with wide angle lenses. Made in Japan quality!