Solar Filters

One of the core essentials of solar imaging or viewing is a high quality solar filter that can filter out unwanted light and render the sun safe for viewing. Specialized solar telescopes already have integrated solar filters as part of their internal mechanics, but if you're using any other kind of telescope, you absolutely need a solar filter for safety purposes. There are three normal types of solar filters; White Light, H-Alpha, and Calcium-K. Each one produces a different kind of solar image when used to view the sun, because each one focuses on a different wavelength of light to the exclusion of all others. White Light filters are the most affordable and economic option, as well as the most common by far. They produce either a yellow, natural looking solar image or a black and white solar image, depending on manufacturer. H-Alpha filters are the next step up from that, providing superb views of prominences, chromosphere, and surface details such as sunspots, plagues, flares, filaments, and granulation. They also produce a natural pallet of orange, red, and yellow. Calcium-K filters focus on very specific phenomena, and produce a blue-purple image. If you're not sure which would be most enjoyable, OPT invites you to contact us for assistance, as we are always happy to help an astronomer in need! Solar safety is a priority in every solar product sold at OPT, and we urge you to carefully follow the procedures listed in any instructions included with any solar product for your own wellbeing. 

 

                                                              

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Set Descending Direction

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One of the core essentials of solar imaging or viewing is a high quality solar filter that can filter out unwanted light and render the sun safe for viewing. Specialized solar telescopes already have integrated solar filters as part of their internal mechanics, but if you're using any other kind of telescope, you absolutely need a solar filter for safety purposes. There are three normal types of solar filter; White Light, H-Alpha, and Calcium-K. Each one produces a different kind of solar image when used to view the sun, because each one focuses on a different wavelength of light to the exclusion of all others. White Light filters are the most affordable and economic option, as well as the most common by far. They produce either a yellow, natural looking solar image or a black and white solar image, depending on manufacturer. H-Alpha filters are the next step from that, providing superb views of prominences, chromosphere, and surface details such as sunspots, plagues, flares, filaments, and granulation. They also produce a natural pallete of orange, red, and yellow. Calcium-K filters focus on very specific phenomena, and produce a blue-purple image. If you're not sure which would be most enjoyable, OPT invites you to contact us for assistance, as we are always happy to help an astronomer in need! Solar safety is a priority in every solar product sold at OPT, and we urge you to carefully follow the procedures listed in any instructions included with any solar product for your own wellbeing.