Used Meade Series 4000 #140 2X 3-Element Barlow Lens (1.25") Bahtinov Optical Info Optical Design Newtonian

Optical Info Optical Design Newtonian Mirror Coatings Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity Glass Type Borosilicate Primary Aperture (mm) 305 Primary Edge Thickness 38mm F/Ratio 4 Focal Length (mm) 1200 Secondary Diameter 102mm Secondary Obstruction (by diameter) 33% Secondary Obstruction by Area 11% Observational Info Dawes Limit 0

Focal ratio f/4

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Monoculars and Microscopes Eyepiece Clamp Style: Spring Loaded w/ lock down knob Eyepiece Clamp Range: 35mm - 60mm (1

Used Meade Series 4000 #140 2X 3-Element Barlow Lens (1.25") Bahtinov Optical Info Optical Design NewtonianPRICE 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