Maximum coverage for large observatory-class telescopes on EQ/GEM mounts.
The Standard Plus Series provides advanced protection for telescopes mounted on equatorial (EQ/GEM) mounts, and Size XL is our largest format — designed for extra-long optical tubes with mounted accessories. This model accommodates setups with total lengths of up to 60 inches (≈152 cm).
Made with UV-resistant hexagon ripstop fabric and sealed interior seams, it offers dependable protection from dust, dew, moderate rain, and sunlight exposure, making it ideal for both home observatories and transport to remote sites.
Size XL is a perfect match for:
GSO RC 16”
Newtonians 12” f/5 and similar long-tube designs
Long-focus refractors with apertures 150–160 mm
Other large telescopes with total lengths up to 60” (152 cm)
📏 Always measure the total length of your telescope with all attached components (diagonal, filter wheel, camera, etc.) before ordering.
🛡️ Perfect for:
Indoor or observatory storage
Temporary outdoor coverage at star parties or remote setups
Protection from dew, drizzle, condensation, and moderate weather
Use in full sun – UV protection for up to 800 hours
⚠️ Not intended for long-term outdoor exposure to heavy rain. For continuous protection in harsh conditions, see our future Titan Series.
✅ Fits Telescopes up to 60” (152 cm) on EQ/GEM Mounts – Ideal for GSO RC 16”, 12” f/5 Newtonians, and long refractors up to 160 mm
💧 Sealed Interior Seams – Provides upgraded moisture protection
☔ Weather-Resistant – Shields equipment from dew and moderate rain
🌞 UV-Resistant Ripstop Fabric – Protects against 800+ hours of sunlight
💪 Hexagon Ripstop Fabric – Durable and resistant to tearing in field conditions
🧵 Soft Inner Fabric Surface – Won’t damage optics or painted finishes
✋ Top Handle – Makes removal quick and easy
🔒 Drawstring with Cord Locks – Helps secure the cover at the mount base
🌿 PFAS-Free PU Coating – Safe for both user and environment
🎒 Lightweight & Foldable – Compact and portable for large setups
To help you choose the right size, this section includes:
📏 An illustration showing the dimensions of this cover
🧭 A demo image explaining how to properly measure your telescope setup
The illustration shows the actual dimensions of this telescope cover.
These dimensions are slightly larger than the maximum recommended telescope length for this size, to allow for an easy and proper fit.
For example, the Size XL cover is designed for telescopes with a total setup length (tube + accessories) up to 60 inches (≈152 cm) — but the cover itself measures approximately 74 inches (≈188 cm) in length.
This built-in allowance ensures:
✅ Easy placement and removal of the cover
✅ A proper fit without straining the fabric or seams
✅ Better airflow and protection around attached accessories
All sizes are designed with this margin to accommodate real-world telescope configurations.
To determine if this cover will fit your telescope, measure the total length of your optical tube including any equipment attached to the focuser — such as a diagonal, camera, filter wheel, or other accessories.
📌 For Newtonian telescopes, you typically only need to measure the tube length, as most accessories point downward in the parked position and don’t add to the total length of the setup.
Please keep in mind that the overall size of your telescope depends not just on the optical tube, but also the mount type, configuration, and accessories.
There are countless combinations of telescope + mount + accessories, and it’s simply not possible to offer a pre-made cover for every setup.
That’s why we offer a custom telescope cover service — tailored specifically for your equipment.
We create covers for any telescope type or size, whether it’s a compact refractor or a large observatory-class setup.
Use our contact form to reach out — or try our Cover Configurator (coming soon) to order a made-to-measure solution.
Let us protect your scope — exactly the way it deserves.