Barlows - Powermates

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...

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...