Used Glass Solar Filter for 6" SCT - Similar to Astrozap - 180mm to 186mm O.D./aperture 150mm (6")

SKU: U2403-FN-AZ1520

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  • $119.95
  • Regular price $149.99

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ECLIPSE ITEMS ARE NOT RETURNABLE Solar Eclipse Glasses, Solar Filters, Solar Telescopes, and other eclipse related accessories and memorabelia are not returnable due to the event based nature of these items.

This is an unbranded glass solar filter, similar to the Astrozap, for a 6" telescope.  It produces a pleasing yellow/orange view of the sun.  It has a clear aperture of 6 inches, and an outside diameter of between 7 1/8 and 7 3/8" (180mm to 186mm).  This means it will fit the following scopes:

AstroPhysics 155; Celestron: NexStar 6/6SE, C6; Meade LXD 55 6" S/Newt; Orion: AstroView 6, SkyView Pro 6 & 6LT, SkyView Pro 3.6 CA, Skyview Deluxe 6 EQ, SkyQuest XT6; Vixen 150

It is in excellent, like new condition:  completely clean, with no scratches, pinholes, sleeks, dings, or anything else that would let the full strength of the solar light through.  We have taken it outside to test it against the sun, and it is safe.  The body is also in excellent condition.

It does not have a box; we will, of course, wrap this very carefully in bubble wrap for shipment.    



The sun is a fascinating, dynamic object. Its surface is surprisingly detailed and changes frequently. The observing hours are more convenient. However, there are a few rules to follow before using your telescope on the sun. The first rule of solar observing is never point your telescope at the sun without a proper filter. The second rule of solar observing is always inspect the filter before placing it on your telescope prior to observing to ensure that there are no defects (scratches or pinholes) that could damage your eyes or equipment. If you discover any defects, DO NOT USE THE FILTER—IRREVOCABLE EYE DAMAGE COULD RESULT FROM THE USE OF A DAMAGED SOLAR FILTER. 

Each Astrozap Solar Filter is equipped with one or more plastic retaining screws, depending on the filter's size, that do not mar or scratch the telescope's finish. 
The glass filters produces an orangey image. Some solar observers prefer the warmer color produced by a glass filter. Buy an Astrozap solar filter and turn your present telescope into a solar observatory. 
A note on choosing a solar filter:
Each Astrozap solar filter size listing represents the outside diameter of the telescope's OTA or dew shield that the filter is designed to cover. We suggest that you measure the diameter of the objective end or dew shield of your OTA in millimeters and select a filter in a size large enough to cover the objective completely. For binoculars, measure the outside of both objective lenses Do not wait until the week of the event to confirm that your solar filter fits your telescope or binoculars, and can be secured in its place in front of your telescope's objective or binocular lenses. Once you receive your order, immediately check and verify that the filter is undamaged, that it fits over the objective(s) completely, and that the adjustment screws tighten enough to hold the filter in place. You must confirm this before attempting to point your telescope or binoculars at the sun in order to ensure that the filter protects your eyes and your equipment. If the filter does not completely cover the objective(s), or is loose and does not stay firmly in place, or if it shows signs of damage, do not use the filter or point your optical equipment at the sun. Ever. Notify Astrozap to obtain a replacement (but if you wait too long, Astrozap cannot guarantee that you will receive a replacement before the event). Failure to verify the integrity, full coverage and secure fastening of your filter before each use will result in damaged optics and permanent injury to your eyes.
Neither Astrozap nor Mile High Astronomy are liable for damages to persons or property resulting from the user's failure to exercise ordinary care in the ordering, installation, and use of a solar filter.
These are safe full aperture (sometimes referred as clear aperture) solar filters. This means that it allows the most light possible into the telescope because it allows the full aperture of your telescope to be viewed. The full aperture allows the best possible daytime viewing when there is minimal atmospheric turbulence. If turbulence is present a mask can be put over the end of the filter to effectively reduce the aperture.

This premium solar filter has an aluminum cell that is secured and centered to the tube end of the telescope with nylon thumb screws and felt padding. The clear aperture is made with high quality hand selected and inspected reflective coated glass. This is the highest quality, durable, glass, full aperture solar filter on the market. The sun is viewed in a natural yellowish-orange image. The filter can be used for direct viewing through the telescope or for photography.

The filter box is foam lined for protection and shock absorption during handling. It is durable enough to store the filter while not in use.