Barlows and Extenders

Provides 2.25x magnification in its standard 1.25" housing Lens element unscrews for ~1.3x magnification when threaded directly into an eyepiece F...

Modular 2x Barlow Design 1.25" Barrel and Filter Thread Compatibility Integrated T-2 Threads for Imaging Designed for Full-Frame Sensor Illuminati...

2.25x Primary Magnification Factor Modular Design with 1.3x Low-Power Configuration Integrated T-2 Thread for Direct Camera Connection Variable 2....

Variable Magnification: 3x to 8x+ Optical Design: 4-Element with 2x CaF2 Fluorite Lenses Image Circle: 90mm Flat Field at 4x Magnification Set Mag...

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...

3x Telecentric Focal Extender Engineered for Narrowband H-alpha Solar Filters Produces a Parallel (Collimated) Light Path Maintains Etalon Bandpas...

4x Telecentric Focal Extender Engineered for Narrowband H-alpha Solar Filters Creates a Parallel f/30 Light Path Optimized Coatings for 656nm Wave...

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...

4.3X Telecentric Barlow Optimized for Daystar Combo Quark H-alpha Filters Designed for F/5 to F/9 Refractors Maximizes Surface Contrast Enables Fu...

Doubles the magnification of any 1.25" eyepiece Telecentric optical design ensures a true 2x power factor Maintains the original eye relief of the...

2X Focal Extender 2-inch Barrel with 1.25-inch Adapter Telecentric Optical Design Fully EMD-Coated Optics Edge-Blackened Lens Elements Descript...

Instantly triples the magnification of any 1.25" eyepiece Telecentric optical design provides consistent magnification Maintains the eye relief of...

Provides 3X magnification for any 2" or 1.25" eyepiece Telecentric optical design ensures consistent magnification Fully EMD-coated optics for max...

Delivers a 5X magnification increase to any 1.25" eyepiece 1.25" barrel diameter fits standard focusers and accessories Telecentric optical design...

2X Magnification Factor Standard 1.25" Diameter Barrel Integrated M42x0.75 T-Threads for Cameras Multilayer HD Broadband Green Film Coatings Full ...

5X Magnification Power 1.25" (31.7mm) Barrel Size Multi-Coated Optical Glass Durable Metal Housing Weight: 3.0oz (85g) Description FAQ Specific...

Triples eyepiece magnification by a factor of 3x Fits standard 1.25 inch focusers and accessories Achromatic 3-element, 2-group lens design minimi...

Instantly doubles the magnification of any 1.25" eyepiece Fully multi-coated (FMC) optics for bright, high-contrast views Features M42 x 0.75 T-th...

Doubles the magnification of any 1.25" eyepiece Fully multi-coated (FMC) lenses for maximum light transmission Standard 1.25" barrel diameter fits...

2x Magnification Factor 4-Element Optical Design 1.25 inch Barrel Size 3-Screw Coaxial Clamping System Fully Multicoated Lenses Description FAQ...