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Baader Planetarium Solar

AstroSolar® Safety Film, Optical Density 5.0, is the ideal material for visual solar filters. Baader Planetarium developed this safety film in anticipation of the 1999 solar eclipse in Europe and it remains unsurpassed for safety and visual quality to this day.

When using AstroSolar® Safety Film 5.0 – mounted in front of your optics – you can image the Sun and safely look through the viewfinder of your camera – or you can directly look into the Sun with telescopes and binoculars at any suitable magnification. The diffraction-limited performance ensures that your image quality remains excellent so that you can discern fine surface details of the sun.

The coating of AstroSolar® Safety Film 5.0 is subject to constant quality control. Its reflective property and security for solar observation through optical instruments is being tested repeatedly.

AstroSolar® Safety Film 5.0 reduces the intensity of solar radiation by 99,999% to a factor of 1 : 100 000 of the initial value. Multiple coating processes on both sides of the carrier film add up during production to result in a perfectly uniform filtering result and help to neutralize the effect of microscopic pores in the coating that plague conventional glass solar filters which are commonly only coated on one side of the glass.

One single layer of AstroSolar® Safety Film is perfectly apt to enable production of a safe solar-filter, suitable to supply highest contrast and sharpness in combination with your telescope or camera tele-lens.

Important note: The eye safety norm EN ISO 12312-2:2015 for naked eye solar viewers does not apply to front aperture filters, covering long-range optics. AstroSolar® Safety Film 5.0 is not authorized to be used for naked eye solar observation or production of solar viewers.

We offer AstroSolar film in ready-to-use filters as well as sheets so that you can construct your own filters. We offer these useful links to determine the filter size that you need for your telescope, finder, guidescope, camera or binocular.

Recommended Solar Filter Sizes – For Astro-Physics Refractors, Finder and Binoculars

Clamping Range of Baader Solar Filters

How to Build Your Own Solar Filter for Telescopes, Binoculars and Camera