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Kendrick Bahtinov Focusing Masks - Choose Your Size

Kendrick   ——   SKU: BM-6001-GS
$30.00 CAD
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The Bahtinov mask is an innovative focus mask concept invented by Russian amatuer astronomer, Paul Bahtinov, and Kendrick is producing these masks with his permission.

The Bahtinov mask allows digital astrophotographers and visual observers to get razor sharp focus in seconds!

Focusing with a Bahtinov Mask is very fast and incredibly sensitive. There is no guessing when you are focused during times of poor to moderate seeing. Simply put the mask over the front aperture of your telescope, guidescope or camera lens and the status of your focus will become immediately apparent.

The masks have a series of slots that create a unique diffraction pattern that can be used to quickly bring your telescope to focus with an absolute minimum of fuss.

How to Use a Bahtinov Mask

First of all, the masks come with three adjustable rubber bumpers. This allows them to fit to a wide variety of tube diameters. Simply push the bumper to the desired location on the slot to ensure that the mask is properly centered over your optics. Then focus. 

NOTE: There are three ways to use the bumpers on the masks to achieve a proper fit to your telescope:

 

  • Bumpers can be adjusted to fit “outside” of the tube or dewcap.
  • Bumpers can be adjusted to fit “inside” the tube or dewcap.
  • If fit cannot be achieved using the two methods above, flip the mask over to use the smaller bumper footprint on the flip side.
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    The Bahtinov Mask is probably the easiest product on the market to achieve tight focus for visual use and for digital astrophotographers, regardless of whether you use a DSLR or CCD camera.  Choose the proper sized mask from the dropdown list above to see the price.

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