Primary Mirror Mask for Sky-Watcher (150/200/250/300)
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  • Primary Mirror Mask for Sky-Watcher (150/200/250/300)
  • Primary Mirror Mask for Sky-Watcher (150/200/250/300)
  • Primary Mirror Mask for Sky-Watcher (150/200/250/300)

Primary Mirror Mask for Sky-Watcher (150/200/250/300)

€12.50
Tax included

Permanently eliminate asymmetrical halos around bright stars. The Carbon-Fiber PETG primary mirror edge mask for Sky-Watcher Newtonians.

  • 🎯 Pinpoint Stars: Covers the unpolished factory mirror edge chamfer and the 3 mirror clips to kill stray reflections.
  • ⚖️ Ultra-Lightweight: Low-profile Carbon PETG (not for Ø300mm) build prevents any weight strain on your mirror cell.
  • 📐 Smart Balance: Minimal ~3mm edge overlap means zero noticeable light loss, but massive star-shaping improvement.
  • 🌌 Sky-Watcher Series: Centralized dropdown choices for 150mm, 200mm, 250mm and 300mm tubes.
Version newton: 150/750
Quantity
En stock

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Primary Mirror Mask — Carbon-Fiber PETG

Fix asymmetrical flare halos and clean up star fields on Sky-Watcher scopes

Most Newtonian reflector users experience a frustrating defect on bright stars: an asymmetrical light flare or strange geometric aberrations. Contrary to popular belief, this issue does not stem solely from the three primary mirror clips, but mostly from the unpolished factory mirror edge chamfer. This raw bevel scatters stray light chaotically across your camera sensor. Our primary mirror edge ring mask addresses this defect at the hardware level.

⚙️ Optical Correction at the Source

This circular mask perfectly rings the outer edge of the primary optics, shrouding both the factory chamfer and the structural retaining clips. By blocking these disruptive zones, only light hitting the flawlessly polished parabolic surface reflects onto your sensor.

💎 Ultra-Lightweight Carbon PETG

Printed in textured matte-black Carbon PETG (not for Ø300mm), this mask prioritizes a weight-free profile to avoid adding stress to the mirror cell. It overlaps the very edge by roughly 3mm, an unnoticeable brightness tradeoff for a radical boost in star tracking quality.

One Listing for the Sky-Watcher Lineup

To streamline your checkout experience, we have grouped the most common factory sizes on a single page. Choose your aperture via the option dropdown menu:
• Sky-Watcher 150 mm Model (150/750, etc.)
• Sky-Watcher 200 mm Model (200/1000, Quattro 8-S, etc.)
• Sky-Watcher 250 mm Model (250/1200, Quattro 10-S, etc.)
• Sky-Watcher 300 mm Model

Installation Instructions

This ring mounts directly into the stock factory primary mirror cell. Installation is best done during routine teardowns for primary mirror cleaning. Its professional matte textured black finish safely absorbs stray scattering inside the tube assembly.

🛠️ Custom Bespoke Manufacturing for Other Brands

Running a GSO, Orion, TS-Optics or custom DIY build? We can custom build your mirror edge mask. Contact us before placing your order to provide your precise mirror diameter alongside clip dimensions and positions.

💡 The Astronomer's Advice: "Digital processing steps like deconvolution or star reduction routines in PixInsight or SiriL become an absolute nightmare when stars have uneven light bleeding from a raw bevel. This mask is the most affordable physical upgrade to cleanly secure sharp stars from the moment of capture, minimizing computer editing time."

— Vincent DUCHENE, Founder of Azur3dprint

Technical Specifications

  • Base Compatibility: Stock primary mirrors for Sky-Watcher Newtonian telescopes (150 / 200 / 250 / 300 mm).
  • Material: Professional-grade high-stability matte-black Carbon-Fiber PETG (not for Ø300mm).
  • Profile: Ultra-lightweight, adds zero structural mechanical strain to cells.
  • Craftsmanship: Proudly designed and manufactured in our workshop in Cannes, France.
REF006
3 Items

Data sheet

Colour
Black

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