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
