Astrozap Flexi-Heat Dew Shield for 3.5" Celestron C-90 and Meade ETX-90

AstroZap Flexi-Heat Dew Shield for Celestron C90 & Meade ETX-90 Maksutov-Cassegrains

Small scopes can still face big dew problems. Whether you’re rocking the classic Celestron C90 or the ever-popular Meade ETX-90, the AstroZap Flexi-Heat Dew Shield offers an elegant solution to the moisture menace, combining passive light blocking with active dew control in one compact, travel-friendly package.

Made from durable, lightweight black ABS plastic, this shield wraps securely around the front of your OTA using a Velcro fastening strip. Inside, a velvet-lined interior reduces internal reflections and slows the thermal loss that leads to dew buildup.

But what truly sets this model apart is its integrated low-wattage heating element, powered via a standard RCA connector compatible with most dew controllers (sold separately). Once connected, the shield delivers gentle warmth directly to your corrector plate, keeping your views sharp and clear—even when the humidity spikes.

Whether you’re scanning lunar craters, chasing Jupiter’s moons, or giving the neighborhood a look at Saturn, this Flexi-Heat shield will keep your little powerhouse dry and dialed in.

Features:

• Designed for Celestron C90 and Meade ETX-90 Maksutov-Cassegrain scopes

• Built-in RCA-compatible heating element for active dew prevention

• Velvet-lined interior enhances contrast and slows dew formation

• Lightweight, durable black ABS plastic construction

• Velcro closure for secure, tool-free installation

• Ideal for grab-and-go observers and compact travel kits

Observing Tip:

Don’t underestimate dew on small scopes—because of their compact size, they often cool faster and dew up quicker than larger OTAs. A heated dew shield like this protects your optics while also improving image contrast by blocking stray light from nearby sources.