Gosky Bahtinov Focusing Mask for for Telescopes Dew Shield or Front End Diameter from 115-165mm 4.5in-6.5in -for 127mm Celestron or Skywatcher Maksutovs,celestron 5 Se,meade127 Ed Apo,etc
- Bahtinov masks make focusing for astrophotography an easy task. Watch the two slanted areas create an "X" over the star. The vertical slits create a....
- Suitable for telescopes Dew Shield or Front Outer Diameter Front end Diameter From 115-165mm (4.5in-6.5in) - For 127mm Celestron or Skywatcher....
- The mask attaches securely to your scope using brass screws with soft transparent nylon cover to ensure the finish of your telescope is protected..
- Light weight so you wont upset the balance on your scope..
- It will take less time to achieve perfect focus with your new mask which mean you spend more time imaging photons rather than focusing them.