Barlows - Powermates

This 1.25” accessory can be used three ways: as a 2X Barlow for visual use, as a prime focus T-adapter, or as a “Barlowe...

The Barlow lens is used to multiply the focal length (Magnifying Power) of the objective lens. It is inserted between th...

This high-quality 2.25x Barlow made of exotic glasses provides the rare extension factor of 2.25x...

A very good quality yet very affordable 3x Barlow lens for 1.25". Through the use of an ED element colour correction is...

TS APO Barlow 5x - 1.25" - apochromatic - compression ring...

The Sky-Watcher NOMAD-5 5x Tele-Centric Focal Extender is a high-quality optical accessory with a variety of uses and co...

This is a perfect accessory for owners of short, fast telescopes, and is especially helpful for boosting the magnificati...

Triplet lens design for anastigmatic flat field suitable to complement the high image quality of the Hyperion Zoom. Conv...

The premium apochromatic optics yield high contrast, sharp images, virtually free of false color...

The Celestron 2” Luminos Barlow Lens increases the magnification of your 2” and 1.25” eyepieces by 2.5x...

Tele Vue Barlows use multi-coated high index glasses for optimum aberration correction, exceptional contrast with virtua...

Tele Vue Barlows use multi-coated high index glasses for optimum aberration correction, exceptional contrast with virtua...

The TSB225 extends the focal length of the telescope by the factor 2.5 and offers a very good illumination for 2" eyepie...

High quality optics with apochromatic characteristics, for magnifications of 2x and above...

Al Nagler's 4-element concept, continues the tradition of full-field sharpness with optimum aberration control. Like lon...

Al Nagler's 4-element concept, continues the tradition of full-field sharpness with optimum aberration control. Like lon...

The Takahashi Extender-Q 1.6X is designed to work with the FS and FC series of Takahashi telescopes.  It extends th...

The Takahashi Extender QE 1.6X is a combination optical extender and field flattener designed speicifically for the FSQ...

Al Nagler's 4-element concept, continues the tradition of full-field sharpness with optimum aberration control. Like lon...

Al Nagler's 4-element concept, continues the tradition of full-field sharpness with optimum aberration control. Like lon...