Designed for Celestron 6" Schmidt-Cassegrain Telescopes Provides a 128.5mm (5.06") clear aperture for safe solar viewing ISO 12312-2:2015(E) compliant Solar Safe filter technology Blocks 99.999% of visible light plus harmful IR and UV radiation Renders the Sun in a natural, high-contrast orange color Secures with two 1" x 4" hook and loop safety straps Description FAQ Specifications In the Box Downloads Warranty Celestron EclipSmart Solar Filter for 6” Schmidt-Cassegrain Telescopes The Celestron EclipSmart Solar Filter transforms your 6" Schmidt-Cassegrain into a dedicated solar observatory, featuring a 128.5mm clear aperture for detailed views of sunspots and eclipses. This filter conforms to the ISO 12312-2:2015(E) international safety standard, blocking 99.999% of visible light and all harmful UV and IR radiation. Weighing just 2.6 oz (74 g), it attaches securely without compromising your telescope's balance, providing a safe, high-contrast view of the Sun in a natural orange hue. ISO 12312-2 Certified Solar Safe Technology The core of the EclipSmart filter is its Solar Safe technology, which meets the stringent transmission requirements of ISO 12312-2:2015(E). The scratch-resistant polymer, produced by American Paper Optics, has been independently tested to guarantee protection from harmful solar radiation. This allows you to directly and safely observe sunspots, planetary transits, and all phases of a solar eclipse. Complete Radiation Blocking: The filter material eliminates dangerous infrared (IR) and ultraviolet (UV) light while reducing visible light to a safe, neutral-density level. Natural Orange View: The filter is engineered to produce a solar image with a pleasing and natural-looking orange color, which enhances contrast on solar granulation and sunspot details. Safety First: Before every use, you should inspect the filter surface for any damage, punctures, or separation from the frame to ensure your observing session is completely safe. A 128.5mm Custom Fit for 6" Celestron SCTs This EclipSmart filter is engineered with an internal diameter of 174mm for a precise, snug fit on Celestron 6" Schmidt-Cassegrain optical tubes. The design prevents accidental slippage and ensures no unfiltered sunlight can enter the telescope. Two 1" x 4" hook and loop straps, combined with four adhesive tabs, provide a redundant safety system that holds the filter securely in place, even if the telescope is bumped or subjected to a light breeze. The generous 128.5mm clear aperture ensures you use the full resolving power of your 6" telescope, delivering bright and detailed views. This filter is confirmed to be compatible with a wide range of models, including the NexStar 6SE, NexStar Evolution 6, and Advanced VX 6" SCTs. How do I correctly install the EclipSmart filter on my NexStar 6SE? To install the EclipSmart filter, first place the four 1" x 1" hook and loop tabs evenly around the outer edge of your telescope tube's front cell. Slide the filter over the front of the telescope until it fits snugly. Finally, attach the two 1" x 4" safety straps by wrapping them around the telescope tube and securing them tightly to the filter. Always check that the filter is secure and cannot be accidentally dislodged before pointing the telescope at the Sun. Is the EclipSmart filter safe for viewing all phases of a solar eclipse? Yes. The EclipSmart filter is ISO 12312-2:2015(E) compliant and designed for safe viewing of all partial phases of a solar eclipse. You must use the filter whenever any part of the Sun's bright photosphere is visible. It is only safe to remove the filter during the brief period of totality, if you are in the correct location, and you must replace it immediately as soon as the Sun begins to reappear. What is the advantage of the orange solar image color provided by the EclipSmart filter? The orange tint is often preferred by solar observers because it provides a more natural and aesthetically pleasing view of the Sun compared to stark white-light filters. This color can also help improve visual contrast on subtle surface features like sunspots and faculae, making them easier to discern. Will this EclipSmart filter fit any 6" telescope? No, this filter is specifically designed for Celestron 6" Schmidt-Cassegrain telescopes, with an internal diameter of 174mm (6.85"). It will not fit other 6" telescopes like Newtonian reflectors or refractors, which have different outer tube diameters. Always measure the external diameter of your telescope's front cell before purchasing a solar filter. Can I use the EclipSmart filter for solar imaging with my 6" SCT? Absolutely. The EclipSmart filter is an excellent and affordable option for starting in solar astrophotography. It reduces the Sun's brightness to a safe level for your camera sensor, allowing you to capture detailed images of sunspots and solar eclipses through your Celestron 6" SCT. What should I do if I find a scratch or pinhole on my EclipSmart filter? If your filter is damaged, torn, punctured, or separated from its frame in any way, you must discard it immediately. Never use a compromised solar filter, as it can lead to permanent and irreversible eye damage. Always inspect your filter carefully before each and every observing session. Telescope Compatibility Celestron 6" Schmidt-Cassegrain Telescopes Filter Clear Aperture 128.5mm (5.06") Filter Material Scratch resistant polymer (American Paper Optics) Compliance ISO 12312-2:2015(E) Solar Image Color Orange External Diameter 184mm (7.24") Internal Diameter 174mm (6.85") Filter Thickness 24mm (0.94") Weight 2.6 oz (74 g) Safety Straps Two 1" x 4" hook and loop straps Safety Tabs Four 1" x 1" hook and loop Tabs Solar Warning Only observe the Sun with ISO-compliant eye protection, such as the filter found in this EclipSmart product. Never look directly at the Sun with the naked eye or a non-filtered optic. Permanent and irreversible eye damage may result. Never tamper with or remove the permanently placed glass filters in this optic. Doing so is dangerous and will void your warranty. Never leave your optic unsupervised. Make sure an adult who is familiar with its correct operating procedures is with your optic at all times, especially when children are present. Never remove your eye protection when looking directly at the Sun during partial phases of a solar eclipse. EclipSmart Solar Filter for 6” SCT × 1 1" x 4" Hook and Loop Straps × 2 1" x 1" Hook and Loop Tabs × 4 Celestron 2-Year Warranty
