With the usage of barlow lenses, you can extend the focal distance of telescopes and enhence the magnification of your observated deep sky objects. Due to their 3-element air-spaced lens design with ED glass, these Barlow lenses provide a brilliant image quality for the whole visual field and are suitable for observations and photography.
FEATURES
- suitable for observations and photography
- increase fivefold the focal distance
- 3-element air-spaced lens design with ED glass
- fully multi-coated
- brass eyepiece clamping ring
