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Stargazing July 13th ✦ 7pm-10pm
Stargazing July 13th ✦ 7pm-10pm

Primary Mirror Mask TS200, CNC machined

In Stock
SKU BU-Mask-TS200
In Stock!


CNC machined primary mirror mask made of aluminum (EN AW-6061), black matt anodized, suitable for 8" TS-Optics/GSO Newtons

The precisely machined mirror mask, for installation on the main mirror, effectively covers the mounting clamps* and the outer area of the main mirror, thus helping to avoid unwanted diffraction phenomena caused by the mounting clamps and a sloping edge of the main mirror.

Scope of delivery

  • 1 x Primary Mirror Mask, suitable for 8" TS-Optics/GSO Newtons (Photon, Advanced Photon and identical telescopes)

Please note! The aperture ring is not compatible to telescopes of SkyWatcher!!!

*General information:

The installation is done on the original mounting clamps. These may have to be shortened slightly because they overlap the main mirror very far in the original state and can protrude under the aperture ring! The original metal washers on the mounting clamps can be omitted since the aluminum mirror mask is sufficiently stable.

Primary Mirror Mask - Notes and installation instructions