Search results for: 'powermate'

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...

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...

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

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

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

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

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