200mm Bahtinov Mask

200mm Bahtinov Mask
200mm Bahtinov Mask
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Availability: In stock available to ship within 24 hours.
SKU: 100025974
Part #: FM-200
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Bahtinov Mask for 200mm Optics

Overview:

The Bahtinov mask is used to focus small telescopes accurately. Although masks have long been used as focusing aids, the distinctive pattern was invented by Russian amateur astrophotographer Pavel Bahtinov.

Simply place the mask in front of the main optic of your telescope and take a picture. Look at the diffraction spike pattern and continue until the spikes are even. Using a Bahtinov mask is the easiest way to get into focus.

Notes:

  1. This 200mm mask is great for 8" SCT or RC telescopes
  2. Fits dew shields with an outside diameter of 212-252mm

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