138-173mm ID Orion PinPoint Telescope Focusing Mask

49.95 $

  • 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

item #40008

SKU: 02ORI00136 Categories: ,

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