Features 1. Adjustable transmittance: Turn your phone camera into a solar imaging device, with a transmittance adjustable in the range of 2 to 400, making it easy to capture sunlight photos. 2. High quality materials: Made of premium dimming materials, effectively limiting light transmittance and enhancing your solar imaging experience. 3. Adjustable ND2-400: The ND2-400 adjustable filter has nine gear adjustments, providing a wider range of applications. (Note: ND can adjust the two extreme values of the filter. At the intersection of ND2 and ND400, cross shadows may occur, which is a normal optical phenomenon.) 4. Thoughtful Gift: This device is suitable for friends, family, and colleagues who are interested in astronomy. It is a practical gift for capturing solar eclipses and other astronomical phenomena. 5. Two combinations: Two options are available: one includes an ND2-400 single lens, and the other is a complete set that includes an ND2-400 lens, clip, lens cover, cleaning cloth, and storage bag. Specification Material: Metal + Glass Style: Single lens; Lens + clip + lens cover + cleaning cloth + bag Color: Grey Size: 8 x 8 x 2.5 cm Weight: 50 g Package Include: 1 x Solar Eclipse Camera Lens Filter