Orion 4" ID E-Series Safety Film Solar Filter for ShortTube 80 Refractor and FunScope TableTop Reflector Telescopes

The Orion 4" ID E-Series Safety Film Solar Filter fits the Orion ShortTube 80mm Refractor Telescope optical tube assembly (OTA) and FunScope TableTop Reflector, so you can enjoy safe views of the Sun without breaking the bank. The filter's black-polymer film material lets you observe sunspots, eclipses and more in delightful detail.

The Orion 4.00" ID E-Series Safety Film Solar Filter is more durable than other, thinner film solar filters thanks to its stronger black-polymer film filter material. What's more, this low-cost filter will display the Sun in a pleasing yellow-orange color unlike the white or especially unnatural blue shade cast by some other film filters. The yellow-orange image of the Sun will reveal clear, high-contrast views of the nearest star in your telescope.

This refreshingly affordable E-Series Safety Film Solar Filter has an inside diameter (ID) of 101mm (4.00"), making it a perfect fit for Orion ShortTube 80 EQ, ShortTube 80-A, ShortTube 80-T and ShortTube 80 OTA refractor telescopes. You can also use this filter to create an ideal set-up for beginning astronomers who are interested in viewing the Sun safely by attaching it to the compatible FunScope TableTop reflector. A strip of adhesive-backed felt is included to help ensure a secure friction-fit of the filter. Orion