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Orion Bahtinov Mask - 138-173mm ID PinPoint Focusing Mask

SKU : OR-40008

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Product Details

    • Also known as Bahtinov masks, Orion PinPoint Focusing Masks will help you achieve precise focus in seconds
    • This PinPoint Mask fits telescope tubes with an outer diameter of 138mm to 173mm (5.43" to 6.81")
    • Orion PinPoint Focusing Masks produce a distinct, intersecting 3-line pattern once accurate focus is achieved
    • Three Orion-exclusive adjustable padded pegs provide a secure grip once installed on a telescope
    • Compatible with any type of telescope, and especially useful for astrophotography setups

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