To adapt your conventional nighttime Schmidt-Cassegrain telescope (SCTs) to safely view the sun, you need the Celestron EclipSmart Solar Filter - 6" SCT. This filter comes with a 2 year Warranty

Enhance your viewing experience with Celestron's EclipSmart Solar Filter for Celestron 6" telescopes. With two Velcro straps and four self-adhesive Velcro pads for added safety, you can be assured that the solar filter cannot be accidentally knocked off and will provide Solar Safe, ISO compliant viewing

List of 6" SCT:
SkyProdigy 6" Computerised Telescope
Advanced VX 6" Schmidt-Cassegrain Telescope
NexStar 6SE Computerised Telescope
NexStar Evolution 6

EclipSmart solar products feature Solar Safe filter technology providing the ultimate protection from harmful solar radiation, including both IR and UV light, and filters 99.999% of visible light. Celestron Solar Safe filter technology is guaranteed safe for direct solar observation and has been independently tested by SAI Global Assurance Services.

Solar Safe products conform to and meet the transmission requirements of ISO 12312-2, Filters for Direct Observation of the Sun, EN 1836:2005 + A1:2007 (E) for an E15 Filter for the Direct Observation of the Sun and, AS/NZS 1338.1:2012, Filters for Eye Protectors.

Features
- Instantly transform your normal Celestron 6" Schmidt-Cassegrain telescopes (6" SCT) into a yellow-light solar telescope (complete list of 6" SCT look in description section)
- ISO compliant solar safe film protects your eyes when viewing the sun, unlike some other filters on the market
- Scratch resistant polymer produced by American Paper Optics
- Designed from the telescope's lens cap for a snug fit, each filter includes two safety Velcro straps and four self-adhesive Velcro pads for safely securing your solar filter in place

Specifications
Filter clear aperture: 128.5mm
Filter diameter (external): 184mm
Filter diameter (internal): 174mm
Filter material: Scratch resistant polymer produced by American Paper Optics
Filter thickness: 24mm
Nylon safety straps: Two 1" x 4" Velcro straps, Four 1" x 1" Velcro Tabs
Telescope Compatibility: Celestron 6" Schmidt-Cassegrain Telescopes
Weight: 2.6 oz (74 g)