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Description
When placed over the front of a telescope, handy Orion PinPoint Telescope Focusing Masks make it easy to achieve quick and precise focusing without guesswork. Also known as Bahtinov masks, these focus aids feature a laser-cut slot pattern that produces a distinct, intersecting 3-line pattern once accurate focus is achieved in any type of telescope.
Orion PinPoint Focusing Masks will help astrophotographers save time and avoid frustrating, fuzzy results caused by slightly defocused exposures. With a PinPoint Mask installed on an imaging telescope, just focus on any bright star within or near the celestial object you want to photograph and adjust focus until the intersecting 3-line pattern is displayed indicating precise focus has been achieved. Wow, that was fast! Besides astrophotographic applications, PinPoint Focusing Masks are also useful for visual observations when fast, tack-sharp focusing is desired.
Precise focus is achieved when the middle spike is exactly centered in the "X" pattern.
Image above displays diffraction pattern as seen on digital camera LCD or computer screen.
Three Orion-exclusive adjustable rubber-sleeved pegs equipped with thumbscrews clamp onto the outside of your telescope tube or dew shield to hold the PinPoint Mask firmly in place. Orion PinPoint Focusing Masks are easy to install and remove so you can achieve precise focus and quickly start capturing astrophoto exposures.
Each Orion PinPoint Focusing Mask can fit a range of telescope tube diameters. For example, this 58-83mm ID Orion PinPoint Focusing Mask will fit telescope tubes with an outer diameter ranging from 58mm to 83mm (2.28" to 3.27").
Made of laser-cut black plastic. Flat for easy storage and transport.
Quick Overview
- 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 58mm to 83mm (2.28" to 3.27")
- 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
Fitment Guide
| Focusing Mask | Diameter Range | Fits: |
| 40004 | 58-83mm | StarBlast 62mm Compact Travel Refractor |
| 40005 | 78-103mm | ED80T CF Triplet Apochromatic Refractor |
| 40006 | 98-123mm | ED80 80mm f/7.5 Apochromatic Refractor, EON 85mm ED-X2 f/6.6 Triplet Apo Refractor, Orion 102mm Maksutov-Cassegrain Telescopes |
| 40007 | 118-153mm | StarSeeker IV 114mm GoTo Reflector, AstroView 120ST Equatorial Refractor, Orion 127mm Maksutov-Cassegrain Telescopes |
| 40008 | 138-173mm | EON 115mm ED Triplet Apochromatic Refractor, StarSeeker IV 130mm GoTo Reflector |
| 40009 | 158-193mm | EON 130mm ED Triplet Apochromatic Refractor, 6" f/4 Newtonian Astrograph Reflector |
| 40010 | 178-213 mm | Orion 150mm Maksutov-Cassegrain Telescopes |
| 40011 | 198-243mm | Orion 180mm Maksutov-Cassegrain Telescopes |
| 40012 | 228-273mm | 8" f/8 Ritchey-Chrétien Astrograph, Premium 190mm f/5.3 Mak-Newt Astrograph, 203mm f/4.9 Reflector Telescope Optical Tube Assembly, Atlas 8 EQ-G GoTo Reflector, 8" f/3.9 Newtonian Astrograph Reflector |
| 40013 | 268-313mm | 10" f/8 Ritchey-Chrétien Astrograph, 10" f/3.9 Newtonian Astrograph Reflector |