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Baader Planetarium AstroSolar Solar Filter *FAST SHIPPING! MOST OF OUR ITEMS ARRIVE WITHIN 2 BUSINESS DAYS* (FOR UK) 100% Money Back Guarantee. 30 Days Return Policy. Our service and products are of the highest quality!
Product Details
AstroSolar solar filter film (visual) 100 x 50cm, telescope quality, neutral density OD = 5.0 Patent pending in Europe – awarded in the United States with the title: Astro-Product of the Decade This film is interferometrically tested to 94-96% Strehl ratio – it is now as good as a Carl Zeiss APQ lens. Keeps your eyes safe during visual solar observation Box contents: AstroSolar solar filter film 100×50, colour-neutral, telescope quality, D=5 It's always very pleasant to observe the Sun, not only during solar eclipses. The number of sunspots changes permanently, as well as their shape and size. Depending on magnification, you may even be able to discern the core and boundary areas of a sunspot (umbra and penumbra). The one essential condition for any solar observation is to reduce the sunlight to under 1/100.000 of its normal brightness, which is a no risk amount for the eyes. The Astro-Solar sun filter foil meets that standard. Simply fitted to the front of the telescope tube, this foil doesn't fall short of pricey plane-parallel glass filters in any way. The coating is subjected to permanent quality control. The multiple metal coating of the foil produces a remarkably even filter effect. Technical data:- sheet size: 50×100 cm- filter efficiency: 99.999%- sheet thickness: 0.012 mm- absolutely clear and bubble-free substrate (non-Mylar)- instrument requirements: for telescopes of up to 450mm aperture- quality mark: CEIncluded in delivery: 1 sheet, incl. instructions
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Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: GB