These filters are designed to work with our C5 SCT telescopes, NexStar 5 and NexStar 130
telescopes.
Celestron Solar Filters are made with Baader Astro Solar™ Safety Film. Far
superior than any existing glass, Mylar or polymer filters, they lead to brighter, sharper, and
higher contrast images.
Enter the new millennium with the finest solar filters available.
Astro Solar™ Safety Film is clear and homogenous and attains the optical performance of high
quality plane-parallel glass filters—it is diffraction limited! Double-sided metal coatings have
uniform density and good color balance across the entire field ensuring razor sharp images from
edge to edge.
The Sun appears in its “real "color —neutral white, not blue or orange ,and
the sky adjacent to the solar limb is jet black.
You can see detail in sunspots, bright
faculae near the limb and the mottled areas known as granules with these filters. The Sun offers
constant changes and will keep your observing interesting and fun. Even small aperture telescopes
can enjoy features of the Sun.
The Astro Solar™ film is completely safe and durable
(won‘t break like glass if dropped). Its rating is ND-5 which means that the film transmits
1/100,000 of visible light (.001%) while reflecting (blocking) 99.999%of unwanted light. The film
absorbs all ultraviolet rays while coating reflects infrared light rendering both absolutely
harmless. For added assurance, Baader Astro Solar™ film has been declared safe for direct
solar viewing by the German National Bureau of Standards for eye safety.
Celestron has
previously manufactured high quality, plane-parallel glass solar filters (unlike today 's glass
filters which generally are poor in quality with reduced contrast). Celestron has offered Mylar
solar filters (they were the best previously available) but they suffer from a lot of scattered
light and false color. Polymer filters suffer from not only scattered light but also have reduced
sharpness and contrast due to their increased thickness. So, “we‘ve been there and done that" and
after all these years are now offering the finest solar filters available for observing. Each is
mounted in a durable ABS or rubber cell that won‘t break.
