33 results for "Barlow eye pieces" between $25.00 and $250.00

If you need a high quality, medium high power Barlow for 1.25” eyepieces, look no further than this TeleVue. It’s a 2-lens achromatic design with superb sharpness to match that of TeleVue eyepieces. It is fully multicoated, with blackened lens edges and internal antireflection threading for excellent contrast. Its barrel is threaded for standard 1.25" filters. There's an undercut safety groove in the barrel that helps hold the Barlow in place should the focuser thumbscrew accidentally loosen. A non...

This fully antireflection-coated achromatic doublet Barlow increases the magnification 2x when used used in the star diagonal of a catadioptric (Schmidt-Cassegrain or Maksutov-Cassegrain) or refractor or in a reflector focuser. Due to the length of the barrel, care should be taken to be sure that the Barlow does not bottom out on the mirror face if used in a 2" diagonal with a 1.25" adapter. The inside of the barrel is anti-reflection threaded to improve contrast. There's a groove machined into the...

In addition to the Meade ETX scopes, it is particularly recommended for use with current Meade DS Series refractors and reflectors, as well as with older Meade 390, 395, and Polaris refractors and Meade 4420, 4450, 4500, and Polaris reflectors. It is needed with these latter reflectors to allow photography with a #1320 or #1321 camera adapter. Its multicoated achromatic glass doublet lens works best at focal ratios of f/6 and above. A thumbscrew holds eyepieces in place.

All air-to-glass surfaces are expected to be fully coated with multiple layers of individually tuned ion-deposited anti-reflection materials for maximum light transmission and contrast. The lens edges and all internal metal surfaces are expected to be blackened to maximize the image contrast. It is anticipated that eyepieces will be held in place by a non-marring clamp ring that won’t scratch your eyepieces as a conventional metal thumbscrew can. A safety groove will probably be machined into the...

All air-to-glass surfaces are expected to be fully coated with multiple layers of individually tuned ion-deposited anti-reflection materials for maximum light transmission and contrast. The lens edges and all internal metal surfaces are expected to be blackened to maximize the image contrast. Eyepieces are anticipated to be held in place in both the 2" Barlow and the 1.25" adapter by non-marring clamp rings that won’t scratch your eyepieces as a conventional metal thumbscrew can. A safety groove...

Stellarvue 2x Barlow Eyepiece E1048 ( LS-TA-E1048 ) Stellarvue 2x Barlow Eyepiece E1048 is a Stellarvue Barlow lens that doubles the power of any 1.25" eye piece . Double your telescope eyepiece selection with just this one item. Works with all Stellarvue telescopes while i mproving the performance of many eyepieces . Improved contrast and color correction over many other commercial units. Also comes with brass thumbscrew

This is a new Meade Plossl 6mm Eyepiece, 1.25" O.D. .New in box. High power magnifying

Astro Tech 2x ED Barlow Lens The Astro Tech 2x ED Barlow Lens works with both 2" and 1.25" eyepieces. Fully Multi Coated Doublet Optical Configuration The Astro Tech 2X ED Barlow Lens has one ED Element that delivers true color free performance CNC Machined 37mm of Clear Aperture The Astro Tech 2x ED Barlow lens is a great value in 2" ED Barlow Lenses. Below is a full write up of this item from the manufacturer. The Astro-Tech AT22XB is a very high quality 2" Barlow with a 1.25" eyepiece adapter...

This Ralph Dakin doublet design is considered by many professional astronomers to be the Rolls-Royce of Barlows. It has a magnification of 2.4x for non-repeating eyepiece powers. A non-marring nylon thumbscrew holds eyepieces securely in place. The lenses are antireflection coated, but not multicoated. One reason not to multicoat is to eliminate or greatly reduce a phenomenon known as "narrow angle light scatter." Multicoatings have more narrow angle scatter than single layer coatings. You can see...

The Astro-Tech AT22XB is a very high quality 2" Barlow with a 1.25" eyepiece adapter that will double the power of any 2" or 1.25" eyepiece it is used with. It uses a fully multicoated doublet optical system with an ED (Extra low Dispersion glass) element for true apochromatic (color-free) performance. The lens edges are blackened for high contrast. Color correction and sharpness are excellent. This 2" Astro-Tech Barlow adds nothing to your eyepiece image except an increase in magnification.

This Ralph Dakin doublet design is considered by many professional astronomers to be the Rolls-Royce of Barlows. It has a magnification of 2.4x for non-repeating eyepiece powers. A non-marring nylon thumbscrew holds eyepieces securely in place. The lenses are antireflection coated, but not multicoated. One reason not to multicoat is to eliminate or greatly reduce a phenomenon known as "narrow angle light scatter." Multicoatings have more narrow angle scatter than single layer coatings. You can see...

Solid refractor telescopes. All glass coated optics for enhanced image brightness. Interchangeable eyepieces with a 3x Barlow lens to increase viewing power. Red Dot Finder Scope to help aim at sky targets. Engineered with smooth functioning mounts. Sturdy adjustable aluminum tripod with accessory tray. Ideal for celestial and terrestrial viewing. Excellent for astronomy enthusiasts and professionals. BONUS SOFTWARE: StarWatch Astronomy Software Deepsky Astronomy Software is a comprehensive...

Series 4000 6.4mm, 9.7mm, 12.4mm, 15mm, 32mm, and 40mm eyepieces, #126 2x Barlowlens, Series 4000 Color filter set #1 (#12 Yellow; #23 Light Red, #58 Green; #80A Blue), Series 4000 ND96 Moon Filter, and Aluminum Carrying Case.

Solid reflector telescopes. All glass coated optics for enhanced image brightness. Refl ector telescope with a rack and pinion focuser. Interchangeable eyepieces with a 3x Barlow lens to increase viewing power. Red Dot Finder Scope to help aim at sky targets. Engineered with smooth functioning mounts. Sturdy adjustable aluminum tripod with accessory tray. Ideal for celestial and terrestrial viewing. Excellent for astronomy enthusiasts and professionals. BONUS SOFTWARE: StarWatch Astronomy...

Plastic replacement 2" over the barrel dust cover for diagonals, barlows, and adapters. OPT Astronomy Equipment - Female Replacement Dust Covers are easy to grip for quick removal and insertion. Dust cover fits over the barrel, such as the open end of an eyepiece. OPT Astronomy Equipment - Female Replacement Dust Covers are made from durable clear plastic which resists hardening and cracking with age.