Meade 2X Triplet Air Spaced Barlow
This remarkable Barlow is a splendid accompaniment to Meade Series 4000 eyepieces, or indeed any other 1.25" eyepieces. This Apochromatic Barlow features a 3-element, air-spaced telenegative lens that ensures the ultimate in image resolution, contrast, and color correction.
This Barlow is compatible with any refractor, reflector, or Schmidt-Cassegrain telescope equipped with a focuser that accepts standard 1.25" barrel eyepieces. When slotted in to such a telescope, the Barlow doubles its effective focal length, and by extension doubles the effective magnification of eyepieces in use with the scope as well. With a diagonal mirror or prism placed between the Barlow and an eyepiece (e.g., in applications with refractors or Schmidt-Cassegrains), effective eyepiece magnification is approximately tripled!
This particular Barlow is a superb complement to series 4000 eyepieces from Meade, designed with that line of eyepieces in mind. However, it's perfectly capable of amplifying other kinds of eyepiece as well, so long as they fit to a 1.25" barrel. Mechanical components are of machined aluminum and brass. Lens diameter is 28mm; clear aperture is 26mm.