Astrozap Flexible Black Plastic for the 12" Astro-Tech AT12RC Ritchey-Chrétien Astrograph

AstroZap Flexible Dew Shield – For 12" Astro-Tech AT12RC Ritchey-Chrétien Astrograph

Custom Dew and Glare Protection for Your Open-Tube RC

The AstroZap Flexible Dew Shield for the 12" Astro-Tech AT12RC Ritchey-Chrétien astrograph provides a lightweight, effective way to control dew and block ambient glare from interfering with your imaging or visual sessions. Designed specifically for this open-tube RC optical tube assembly, the shield wraps securely around the front of the telescope’s carbon fiber or aluminum cell without interfering with the secondary mirror supports or light path.

Made from durable black ABS plastic, the shield features a felt-lined interior that slows the radiative cooling of the optical surfaces and absorbs stray light that might otherwise bounce around inside the optical tube. The Velcro-style wrap closure makes installation quick and secure, while the flexible construction allows you to roll or fold it flat for storage.

Whether your AT12RC lives in a dome or rides to remote dark-sky sites, this dew shield keeps your imaging sessions running longer—and your optics performing at their best.

Key Features:

• Custom Fit for 12" Astro-Tech AT12RC RC Optical Tubes

• Durable Black ABS Plastic: Lightweight, flexible, and field-tested

• Felt-Lined Interior: Reduces glare and slows dew formation on optical surfaces

• Velcro-Style Wrap Closure: Secure fit without tools or permanent mods

• Flexible Design: Rolls or folds for compact transport and storage

• Made in the USA: Built by AstroZap for reliable, long-term use

Compatibility:

Fits the Astro-Tech AT12RC 12" Ritchey-Chrétien truss or solid-tube astrograph (check front cell size before ordering for custom-modified units). Designed to fit snugly around the front of the optical tube and clear the secondary mirror supports without obstruction.

Observing Tip:

RC astrographs are known for their precision—but their open design makes them especially vulnerable to light intrusion and radiative cooling. A flexible dew shield not only helps keep optics clear—it also improves contrast in suburban environments by cutting off-angle stray light.