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William Optics - All New 90 Degree 1.25 Inch Erect Prism
William Optics - All New 90 Degree 1.25 Inch Erect Prism
William Optics - All New 90 Degree 1.25 Inch Erect Prism
William Optics - All New 90 Degree 1.25 Inch Erect Prism

William Optics - All New 90 Degree 1.25 inch Erect Prism

  • Vendor
    William Optics
    Sale price
    Regular price
    Unit price


    All New 90 Degree 1.25" Erect Prism

    All New 90 degree high quality Erecting prism With helical Focuser barrel.

    Another beautiful product exclusively from WO.

    This 1.25" 90 deg. erecting prism will very happy to be used with that nice premium refractor of yours! Perfect for daytime observations too.

    No further description is needed: just check it out!

    Precision Prism

    • Image erecting BAK4 prism with anti-reflection coating.

    • High accuracy and high light reflection prism.

    • Helical focusing on the top barrel for fine  adjustment.

    Superior Craftsmanship

    • Internally matte blackened and threaded for no internal stray light reflection.

    • Threaded for 1.25" filters.

    Beautiful Finish

    • Entirely aluminum, black anodized.

    • Smooth finish.



    We work very hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price then us within six months of your purchase date please let us know and we will refund your original payment for the difference.  We want you to feel confident that you are getting the absolute best price for the product you are ordering.  If you find that our own website has a lower price for the same item you have ordered within six months of your purchase date will refund the difference as well.

    To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.

    Our 100% Price Guarantee has some limitations:

    • You must purchase the item from our website before requesting your Price Match Guarantee
    • Promotions such as rebates and buy one, get one free offers are not eligible
    • The item must be in stock on the competitors website
    • The competitor must be an online store, they may not have a retail location
    • The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
    • The competitor must be an Authorized Retailer of the product in question
    • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax

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