StarField Bahtinov Mask - 200 mm - FM-200 68º Eyepieces 3X Barlow: A Barlow lens

3X Barlow:  A Barlow lens accepts any eyepiece or other telescope accessory with the same sized barrel

Ultra low reflectance

Setting up the Explore Scientific Pop-Up Observatory Tent is literally only a matter of releasing the band so the tent can “pop up” from its pack

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StarField Bahtinov Mask - 200 mm - FM-200 68º Eyepieces 3X Barlow: A Barlow lensThis StarField Bahtinov Mask is sized for 8" SCT or RC telescopes and fits dew shields with an outside diameter of 212 mm to 252 mm. While basic, often home made focus masks have been used for quite some time, the Bahtinov mask, with it's distinctive pattern, is unique. Invented by Russian amateur astronomer Pavel Bahtinov, this mask has quickly become the astro imager's choice for fine focusing a telescope. To use, place the Bahtinov mask in front of