Package List
1 x Focusing Mask

Features
- Color: Black Metal Bahtinov Mask.
- Material: Aluminum alloy Telescope Mask.
- Size: 9.50X9.50X0.10cm/3.73X3.73X0.04in Metal Telescope Mask
- Focusing masks take the guesswork out of focusing and even get over the seeing conditions as it is a mathematical type approach to the task. The focus for your telescope quickly and easily Aluminum Alloy Astronomical Telescope Mask.
- Focusing masks produce a distinct, intersecting pattern once accurate focus is achieved Aluminum Alloy Focusing Mask.
Metal Focus Mask
- Suitable for use on all of telescope, reflectors, refractors Aluminum Alloy Focus Mask.
- The masks grip the telescope tube gently but firmly with three metal posts which have non-scratching silicon sleeves to protect your valued telescope surface. This prevents slippage, whilst allowing the mask to remain central. Metal Astronomical Telescope Mask
- Adopts precision production to the stable characteristics and high reliability Aluminum Alloy Telescope Mask.

Goods Description
Astronomical Telescope Mask Because of this 3-post mounting, the mask remains , whilst fitting a wider range of telescopes.Metal Focusing Mask These focusing masks are adjustable to fit a wide range of optical tubes, unlike masks which are only able to telescope