AstroZap LSAT10 Light Shroud for Astro-Tech AT10RCT 10" Truss Tube Ritchey-Chrétien
A truss-tube telescope like the Astro-Tech AT10RCT 10" Ritchey-Chrétien is designed for strength and portability—but its open structure also invites stray light and moisture into the optical path. The AstroZap LSAT10 light shroud solves that problem with a lightweight, custom-fit sleeve that blocks unwanted light and helps minimize dew formation, giving you sharper images and more stable thermal performance.
Tailored specifically for the AT10RCT, the LSAT10 is made in the USA from a durable black nylon/cotton blend that’s double-stitched for long-term durability. The shroud slides over the truss structure and holds its shape, preventing sagging into the light path—even in damp, humid conditions. Drawstrings at the top and bottom allow for a snug fit that stays put during use.
The interior of the shroud absorbs ambient light, improving image contrast and reducing glare from nearby light sources like streetlamps or observatory monitors. It also acts as a passive dew control system, slowing heat loss and helping your optics resist fogging under dewy skies.
For full protection, the LSAT10 pairs perfectly with the AstroZap DCAT10 dust cover (sold separately), which seals the front of the OTA during transport or storage.
Whether you're imaging or observing, this light shroud is an essential accessory that enhances performance while keeping your truss-tube OTA protected and optimized.
Key Features:
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Designed for the Astro-Tech AT10RCT 10" truss-tube Ritchey-Chrétien
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Blocks stray light and improves image contrast
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Reduces dew formation passively by insulating the OTA
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Constructed from black nylon/cotton blend with double-stitched seams
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Holds its shape—resists sagging into the optical path
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Drawstring closures at both ends for a secure fit
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Pairs with the AstroZap DCAT10 dust cover for full OTA protection
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Made in the USA
If you own an Astro-Tech AT10RCT 10" truss tube Ritchey-Chrétien, this Astrozap LSAT10 light shroud (and its companion optional DCAT10 dust cover) are virtually indispensable in the field.
