Used Meade Series 4000 #140 2X 3-Element Barlow Lens (1.25") Great Gifts The mask works by creating

The mask works by creating a group of three diffraction spikes

and quietly improved

25" filters

Special edition with limited availability

Used Meade Series 4000 #140 2X 3-Element Barlow Lens (1.25") Great Gifts The mask works by creatingPRICE DROP! Was $45; now just $35! This is a used Meade 2x 3 element apochromatic Barlow in excellent condition, with clean optics and body. It includes its original box, the Meade bolt case, and both dust caps. Meade Series 4000 #140 2x Apochromatic Barlow Lens (1. 25") 07277 1: The most advanced Barlow lens yet developed for commercial telescopes, Meade #140 2x Apochromatic 1. 25" Barlow Lens #07277 1 includes a 3 element, air spaced telenegative