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Aline 1.25" & 2" Telescope Collimation Eyepieces Brighter than any Cheshire eyepiece for a fraction of the cost. A must fo rich-field and fast Newtonians and Dobsonians more...

wifi-Aline wireless video collimation tool The wifi-Aline enhances the accurate collimation of Dobsonian and Newtonian telescopes by sending a real-time video stream of the telescope optics wirelessly to your tablet, phone or computer’s web browser. more...

Video Collimation with Aline, iphone & ipad Tutorial on using Aline in combination with cell phone and tablet to do live video collimation. more...