Equipment for Safe Solar Observations

A4 Size (approx. 29x20cm) Baader AstroSolar Filter sheet

The Baader AstroSolar filter foil has a perfect optical performance. It is superior to conventional glass filters and filter sheets

Baader Astro-Solar Safety Filter Sheet

The Baader Astro Solar (tm) Solar filter foil has been elected Astronomy Product of the Decade in the United States
This filter foil has no micro-holes at all due to a carefully applied coating on both sides! Perfect safety for your eyes and ultimate contrast are the result. The sun appears as a neutral white disc in front of a black background. Contrast is much better than in conventional glass filters and other filter sheets!
The foil is very homogenous and therefore exceptionally tearproof. Damage is less likely than in glass filters that may break.
Baader's Astro Solar filter foil has been critically tested by Peter Rucks of Maschinenfabrik Pleiger. The result was sensational!
The filter sheet met or surpassed diffraction limited performance in each and all tests. Even in top-quality refractors there was no noticeable image breakdown. The image of an artificial star to the left was taken with the Astro Solar sheet attached. You can see the first-class optical performance yourself!

Test Results with reference to an ideal 100% image quality of a telescope showed the Baader Astro Solar Film (tm) filter foil acheived an enormous 94.1%. The standard Mylar foil which had been tested under the same circumstances only acheived 57.2%. Likewise, most tested glass solar filters did not nearly achieve near 90%.
END RESULT : Superior Optical Quality

Solar Continuum Filter (540 nm) - Solar Contrast Boosting Filters

Unsurpassed contrast of photospheric details is achieved by an extremely narrow half bandwidth of only 8 nm. Functions like a monochrometer, suppressing the effects of atmospheric turbulence to provide images that appear markedly more stable. Focus "Sweet Spot Generator" (completely eliminates the usual focusing guesswork) the image snaps to a razor sharp focus at the exact focal position.
False colour of achromatic refractors or ED refractors has no more negative influence on the image. The image is equally sharp in a simple achromat and a triplet apochromat.
Contrast on the sun's surface is enhanced. Details like flares at the sun's rim or details within sunspots become clearer and easier to see.
Image the sun the way professionals do!

Note: Use only in combination with AstroSolar Safety Film or Herschel Safety Wedge or other safe prefilters.

Prices

The Baader Solar Continuum Filter only alows a very narrow spectral region close to 540nm. This is the spectral region where flares and sunspot structures have the best contrast.
Because of the very narrow spectral bandwidth even short focal ratio refractors (e.g. f/5) are turned into high contrast solar telescopes. False colour does not negatively impact the image quality.
The filter has an age-resistant dielectric coating. It is very robust and scratch resistant. Precisely polished optical surface offer best possible contrast and image sharpness.

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