This affordable E-Series solar filter fits our fan-favorite Orion ShortTube 80mm Refractor Telescope optical tube assembly (OTA) and FunScope 76mm 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 our 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 our popular 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.
CAUTION: Never look at the Sun, even for an instant, without a protective solar filter. Doing so can permanently damage your eyes.
Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-676-1343.
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Orders received by noon Pacific Time for in-stock item the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.