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  • ANTLIA Narrowband 7nm HSO Prime Filter Set - 36mm Unmounted (glass only)

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    ANTLIA Narrowband 7nm HSO Prime Filter Set - 36mm Unmounted (glass only)

    A 7nm Prime filter that will work even with the fastest optical systems and available at an affordable price!

    Please see the description of the individual 7nm Prime filters for further info.

    Available Sizes:

    Unmounted Dia36mm

    Not Recommended:

    • Solar imaging
    • Night visual observation

    Not Permitted:

    DO NOT LOOK AT THE SUN WITH THIS FILTER
    Serious eye damage will result if you fail to observe the warning

    IMPORTANT NOTE: 

    Antlia made huge efforts to minimise halos around bright stars and achieved very good results by doing so, therefore you will most likely rarely if ever see halos, however this is a very complicated topic as halos can be caused by various elements in the optical train. There are thousands of possible scenarios and they simply cannot promise that there will be no case when some level of haloing will appear.  The Antlia filters are extremely good and represent very good value, but only much more expensive filters (like Astrodon and Chroma) are likely to provide halo-free images. However in most cases Antlia filters would offer a near-to-perfect solution.

    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.

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