Solar Filters ULF-90-2 Binocular

Universal Solar Filters (ULF) are cardboard filter kits for safe solar observation. They are based on the SolarLite Filter by Thousand Oaks. After assembly, the filters can be attached to the lens. They then attenuate the sunlight so far that a safe view of the photosphere with its sunspots is possible.

ULF-90-2: Suitable for most binocularswith 80-90 mm aperture and larger camera lenses, as well as spotting scopes. Fits over an outer diameter of 90-109 mm. For smaller outer diameters, the tabs should be folded inwards to grip the lens.