Barlows and Extenders

Baader Planetarium Q-Barlow 2.25x / 1.3xThis high-quality 2.25x Barlow made of exotic glasses provides the rare extension factor of 2.25x. So, ther...

The Baader Planetarium VIP Modular Barlow is a complete high quality 2X photo-visual barlow system. The VIP (VIsual and Photographic) barlow is ing...

The Baader Hyperion Zoom Barlow quickly attaches to any Hyperion 8-24mmm Clickstop zoom eyepiece, instantly converting it into a 3.5-10.5mm Zoom. T...

Telecentric with 2" outer diameter and T-2 threads on both sides Aplanatic, with 2x focal length extension to achieve a parallel f/30 beam in conj...

Baader Telecentric Systems for focal length extension for supplying a parallel optical beam and for providing sufficient backfocus, in conjunction ...

Telecentric with 2" outer diameter and T-2 threads on both sides Aplanatic, with 4x focal length extension to achieve a parallel f/30 beam in conj...

Instantly increases eyepiece magnification by 2.5x 4-element apochromatic optics deliver high-contrast, color-correct views Accepts both 2" and 1....

Instantly doubles the magnification of any 1.25" eyepiece 2-element, fully multi-coated optics for sharp, high-contrast views Maintains the origin...

Doubles the magnification of any 1.25" eyepiece 3-element apochromatic optics for color-accurate, high-contrast views Fully multi-coated lenses ma...

Triples the magnification of any 1.25" eyepiece 3-element apochromatic optics for superior color correction Fully multi-coated for maximum image c...

A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of ...

The Explore Scientific 2X Focal Extender (2.0-inch O.D.), accepts both 1.25-inch O.D. and 2.0-inch O.D. format eyepieces and camera adapters. Fully...

A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of ...

The Explore Scientific 3X Focal Extender (2.0-inch O.D.), accepts both 1.25-inch O.D. and 2.0-inch O.D. format eyepieces and camera adapters. Fully...

A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of ...

Magnification: 2.5x Barrel Size: 1.25" Optical Design: 4-Element Pupillary Corrector Compatibility: Visual and Photographic Use Filter Threads: Ye...

Magnification Factor: 2x Barrel Size: 1.25" Optical Design: 2-Element, Fully Multi-Coated Eyepiece Holder: Brass Compression Ring Filter Threads: ...

Magnification Factor: 2x Barrel Size: 2" with 1.25" Adapter Optical Design: 4-Element, Telecentric Coatings: Fully Multi-Coated Filter Threads: Ye...

Magnification Factor: 2x Barrel Size: 2" Optical Design: 4-element Telecentric Amplifier Coatings: Fully Multi-Coated Filter Threads: Yes (48mm / ...

Magnification Factor: 3x Barrel Size: 1.25" Optical Design: 3-element, apochromatic Coatings: Fully multi-coated Compression Ring: Yes, brass Filt...

Magnification Factor: 4x Barrel Size: 2" Optical Design: 4-Element Pupillary Corrector Compatibility: 2" and 1.25" Eyepieces (with adapter) Primar...

Magnification Factor: 5x Barrel Size: 1.25" Optical Design: 4-Element Telecentric Weight: 0.5 lbs / 227g Total Height: 3.1" / 79mm T-Ring Adapter ...

2x magnification Barlow lens specifically designed for binoviewers Increases magnification while maintaining focus with binoviewer setups ...