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Reduces unwanted glare when observing the Moon and planets.
0.9 Transmits 12.5% of light, so suitable for astronomical telescopes with a 4-10" aperture.
0.6 Transmits 25% of light, so suitable for astronomical telescopes with a 4-10" aperture (4x Fainter)
0.3 Transmits 50% of light, so suitable for astronomical telescopes with a 4-10" aperture. (2x Fainter)
Premium optical glass with anti-reflection coatings and a neutral density (doesn't affect colour).
Screws into the standard 1.25" filter thread of eyepieces and accessories and can be stacked with other filters.
As authorised dealers for all our products they come with a full manufacturers warranty along with our satisfaction guaranteed, no-questions-asked full refund policy for a full 30 days.
Please see our returns policy for full details.
We ship direct from UK warehouses and provide free shipping on all purchases within England, Scotland and Wales (Excluding highlands and Islands)
We use UPS, DHL, DHL Express, Parcelforce or Royal Mail for all orders.
Estimated delivery time is displayed at checkout.
See our shipping policy for more details.
Should you be outside the free shipping area then please contact us to discuss shipping options as prices vary depending on products and delivery location.
Got questions? Read through our FAQ list to see if it's answered there! If not, please contact us via this form.
The start to your adventure waits
Discover Our Exclusive Range of Optics
The start to your adventure waits
Discover Our Exclusive Range of Optics
The start to your adventure waits
