World Leaders in Astronomical Equipments, Education & Services since 2001

GSO 1.25″ Moon Filter

1,271.19 (Ex. GST)

  • This high quality filter transmits only 18% light.
  • It reduces glare and allows the user to relax the eye seeing more detail. It will also and most noticeably reduce the loss of night vision.
  • Some moon filters are made using a plastic cell that can quickly become damaged in use. This unit has a precision machined anodized aluminum cell with an accurate neutral density filter that cuts down on the glare and brightness of our brightest celestial neighbor.

In stock


GSO’s Moon filter is an economical yet high quality eyepiece filter for reducing the brightness of the Moon so greater detail can be observed on the lunar surface. Has 18% light transmission. Green tint helps reduce glare and improve contrast. Has a standard 1.25″ filter thread (M28.5×0.6) so it can be screwed on to virtually any astronomy eyepiece or accessory that has 1.25″ filter threads.

Comes in a protective plastic storage box. Metal filter cell with high quality optical glass substrate (not plastic as some other similarly priced Moon filters). Made in Taiwan.


  • Fits in any 1.25″ with threaded bottom barrel and provides 18% transmission.
  • With it’s standard 1.25″ filter thread (M28.5×0.6), it can screw into any 1.25″ eyepiece.
  • Comes in a plastic case.
Sales Package

1.25″ Moon Filter – 1

World Leaders in Astronomical Equipments, Education & Services since 2001

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