Highly Rated Skywatcher 2" Ed Super Deluxe 2x Barlow Lens (with 1.25" Adapter) #20966 (uk)new - Going Fast [awFZOV1k]

SkyWatcher 2x 2 Inch ED Deluxe Barlow Lens is a lightweight and durable lens that is great for use with 2" eyepieces to double the power but retain the eye relief and comfort. Also well suited to imaging applications where higher magnifications are required. The use of ED (extra-low dispersion) glass and high grade coated lenses designed to enhance light intensity and deliver brighter images with better contrast and high resolution. This quality Barlow can only be used on a telescope equipped with a 2" focuser but can use both 1.25" and 2" eyepieces with the included compression adapter.

What is a Barlow Lens:

The Barlow lens, named after Peter Barlow, is a diverging lens which, used in series with other optics in an optical system, increases the effective focal length of an optical system as perceived by all components that are after it in the system. The practical result is that inserting a Barlow lens magnifies the image