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Galaxy Scientific Group Bahtinov Focusing Mask 80mm

Galaxy Scientific Group Bahtinov Focusing Mask 80mm

Galaxy Scientific Group
GS-55002
In Stock

HK$ 30


+ -

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Pictures shown are for illustration purpose only and may not be an exact representation of the product and accessories included.
  • Description

- Bahtinov Focusing Mask 
- This easy-to-use focusing mask is absolutely necessary to acheive spot on focus when shooting deep sky objects
- Suitable for optics with aperture up to 90mm, with tube diameter or dew shield no wider than 120mm
- Made of durable PVC material, plastic cone plugs are included, easy to set up on telescopes

Demonstration: