William Optics Gold Bahtinov Mask Cover- For WO GT102 and Z103 Telescopes - CPBM-102GD Tele Vue Telescopes total 100"

total 100"

For additional peace of mind the quick release plate has a safety mechanism which prevents it from sliding completely out of the pan head without pushing the release button

Celestron offers a free Focuser Utility program for computerized control of this motor

making this book an enduring must-have guide for anyone looking to improve his or her astronomical viewing experience

a larger light-gathering source means brighter images

William Optics Gold Bahtinov Mask Cover- For WO GT102 and Z103 Telescopes - CPBM-102GD Tele Vue Telescopes total 100"William Optics Gold Bahtinov Mask Cover For WO GT102 and Z103 Telescopes William Optics Bahtinov Focusing Mask and Cover Innovative Design combines Dust Cover and a Bahtinov Mask in one Fits WO GT102 and Z103 Telescopes Clear Acrylic Sheet design provides 92% light transmission Gives the Brightest diffraction spikes for focusing This is a William Optics Bahtinov Focusing Mask Cover made from Acrylic material, which is high in light transmission. This