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                                                               5pc 90EQ Solar Filter Sun Film Membrane 5.0 Astronomical Telescope Cap Bard film
Please Measure Your Telescope Objective Diameters:
As these solar filters will work as a cap to put on your telescope objective tube, it would be more accurate if you measure the tube diameter as different telescope with same nominal objective diameter may have different tube size.The 90mm solar filter will fit a telescope with an internal objective tube diameter of about 112mm. It can also be used on a telescope with an external tube diameter of about 102mm although it is designed for internal tube fitting.Features:
Brand new and high qualityThe Solar Filter is for telescopes dew tube front end diameter 90mmSafely observing the sun without damaging your eyesProduct Type: Bard filmApplicable models: 90mm caliber UniversalOptical density: 5.0 Aperture of the telescopeOutside diameter: 111mmInside diameter: 103mMaterial: PlasticMain performance: observation of sunspots, solar eclipse and other astronomical scene
Don't use cracked solar filterDon't use bad quality solar filterDon't look directly at the sunNever look at the Sun, either directly or through a telescope, without a professionally made protective solar filter installed that completely covers the front of the instrument, or permanent eye damage could result. Package Includes:
5 x 90EQ Solar Filter
    US Seller, ships from the United States.

Filed under: Eyepieces & Accessories