AstroSolar visual photo sheet. A4 format 21 cm x 29.7 cm, density 5, i.e. a flow transmission of 1/100,000th. The Astrosolar sheet must be positioned in front of the opening of the telescope or telescope in order to immediately eliminate a large part of the Sun's intense flux and heat. The AstroSolar sheet can be held in front of the lens with semi-rigid rings or rigid support. The folds on the sheet have no effect on the image quality. This sheet of density 5 allows you to observe the Sun safely for an extended period of time. Many details about the photosphere are visible and well contrasted. This sheet is also suitable for producing very high definition images on the solar photosphere with many details in the magnetic disturbances commonly referred to as "sunspot".