Features 1. Adjustable transmittance: Turn your phone camera into a solar imaging device, with adjustable transmittance from ND2 to ND400, making it easy to capture clear solar images. 2. High-quality materials: Constructed with premium dimming materials that effectively reduce light transmission and enhance solar viewing experience. 3. Adjustable ND2-400: The filter offers nine gear adjustments for versatile light control. (Note: At the extreme ends of the adjustment range, optical cross shadows may occur, which is a normal phenomenon.) 4. Ideal gift: A practical and thoughtful gift for astronomy enthusiasts, perfect for observing and photographing solar eclipses and other solar events. 5. Two options available: Choose between a standalone ND2-400 lens or a complete kit including ND2-400 lens, clip, lens cover, cleaning cloth, and carrying bag. Specifications Material: Metal + Glass Style: Single lens or Lens with clip, cover, cloth, and bag Color: Grey Dimensions: 8 x 8 x 2.5 cm Weight: 50 g Package Includes: 1 x Solar Eclipse Camera Lens Filter