Very practical and easy to use. Highly recommended. Shading, stray light adaptation rate is extremely low. When you wait for dark before going out, or wait for the weather to improve during It can also block sunlight in the eyepiece to improve the visual effect of sun observation. It is usually placed and used as a dustproof. The product uses double-sided silver-plated thick fabric, which has good heat insulation and water resistance. A dust-proof, dewproof and hood is very When you are observing sun, main can shield to reduce the air caused by the temperature rise in the lens caused by sun irradiation.