Levenhuk Solar Filter for 90mm Refractor Telescopes
Full aperture solar filter for safe observations of the Sun: 70/104/109 mm With Levenhuk Solar Filter for 90mm Refractor Telescopes you can safely observe the Sun and you don't have to worry about your eyes - this filter will protect them from harmful solar radiation. The German-made Baader Planetarium AstroSolar Visual film has a uniform structure and provides high-quality images with no distortion. It allows you to see a lot of details on the solar surface such as granulation, solar flares and the structure of the spots - all this you will be able to see with your own eyes. With this filter the Sun will be of a neutral, eye-pleasing white color. When choosing a solar filter you should mainly take into consideration your telescope’s optical tube diameter and not the telescope’s aperture. If the filter is to cover your telescope’s front end, you should compare the filter’s inner diameter to your optical tube/dew shield diameter. If the filter is to be placed inside the tube, you should look at the filter’s outer diameter in comparison with the telescope tube diameter. Please measure your telescope before buying this filter and carefully compare your results with the values provided in the Specifications table. This filter is suitable for the following Levenhuk telescopes: Levenhuk Strike 900 PRO Levenhuk Strike 950 PRO Levenhuk Skyline 90x900 EQ Levenhuk Skyline PRO 90 MAK The filter may also be used with telescopes of other manufacturers with similar design and tube diameter. We recommend checking the inner and outer diameter of your telescope optical tube before purchasing the filter. Specifications: Optical density: 5.0 Filter aperture (film diameter), mm: 70 Inner diameter: 104 mm (4.1 in) Outer diameter: 109 mm (4.3 in) CAUTION! Never look directly at the Sun through your telescope or finderscope without a solar filter!