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 stunning sunlight photos. 2. materials: Made of top-notch 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 are prone to occur, which is a normal optical phenomenon. If you mind taking photos with caution.) 4. Thoughtful Gift: This device is perfect for friends, family, and colleagues who are interested in astronomy. It is a practical and meaningful gift for capturing solar eclipses and other astronomical phenomena. 5. Two combinations: There are two options available, one is a separate ND2-400 single lens, and the other is a complete set that includes an ND2-400 lens, clip, lens cover, eraser, and bag. Specification Material: Metal + Glass Style: Single lens, Lens+clip+lens cover+wiping cloth+bag Color: Grey Size: 8 x 8 x 2.5 cm Weight: 50 g Package Include: 1x Solar Eclipse Camera Lens Filter