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Aluminum Alloy- High Quality Bahtinov Focusing Mask 170-240mm Caliber Fixed Diameter 175-220mm

Product Description

 

Place the Bahtinov Focus-Mask over the end of your telescope, then locate a bright star near your target, take a 3-5 second picture and view the diffraction spikes. Change your focus, take another picture and again, view your diffraction spikes. Is the center spike moving further from center? Then change the direction your focusing and try another picture. Watch the direction the spikes are moving and when the center spike passes the middle of the other two spikes, change direction and fine tune your tuning knobs until the center spike is in the middle. Your now in perfect focus.
Features:

  • The Bahtinov Mask Made of aluminum alloy, not plastic. And it has whole anodizing aluminium process
  • Masks now feature 3 holes which can be attached with 3 screws to prevent the mask from falling all the way to the ground
  • Perfect focusing for your CCD, DSLR or Webcam in seconds
  • Light weight so you wont upset the balance on your scope
  • Suitable for telescopes front end diameter 175mm to 220mm, Universal adaptation, 3 bolts with plastic cover allow the mask to be simply attached to any telescope
  • Aluminium alloy material thickness: 1 mm
  • Weight: 104g
  • Color: Black

Package Includes?

  • 1 X Bahtinov Mask
  • 3 X Screw Kit

 

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Svbony focus on telescope and optical accessories. Aim to supply the high quality products and best service to customers. Main items are including Telescope, Monocular, Binocular, Spotting scope, filter, eyepiece and other accessories. We hope that you could enjoy a much more clorful life by using our products.

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Svbony has set up US/AU/UK/ES/DE/IT/FR oversea warehouses, trying to offer customers speedy best local service. We are a passionate and extraodinary team, committed to offering good products and keeping customers satisfied with their purchase.

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    PushAuctionPackage Includes?
    1 X Bahtinov Mask
    3 X Screw Kit

    Place the Bahtinov Focus-Mask over the end of your telescope, then locate a bright star near your target, take a 3-5 second picture and view the diffraction spikes. Change your focus, take another picture and again, view your diffraction spikes. Is the center spike moving further from center? Then change the direction your focusing and try another picture. Watch the direction the spikes are moving and when the center spike passes the middle of the other two spikes, change direction and fine tune your tuning knobs until the center spike is in the middle. Your now in perfect focus.

    On Oct-06-19 at 19:09:48 PDT, seller added the following information:

    DataCaciques

    Filed under: Eyepieces & Accessories