Barlow lens 2x 1.25 Sky-Watcher

Sky-Watcher Barlow lens 2x 1.25" (SW-5403)

The economical Sky-Watcher Barlow lens 2x 1.25" (SW-5403) is an ideal and budget-friendly solution for expanding the capabilities of your telescope. This quality optical accessory allows you to instantly double the magnification of any eyepiece used, providing detailed planetary and lunar observations without the need to purchase additional expensive eyepieces. As one of the leading telescope suppliers, SkyHunters ensures that this Sky-Watcher Barlow lens meets your astronomical needs with exceptional efficiency.

Key advantages

• 2x Magnification: Effectively doubles the magnification power of any eyepiece by extending the telescope's focal length.
• Cost-Effective Upgrade: Allows you to double the number of available magnification options with your existing eyepieces.
• Optimal Performance: Works best with telescopes featuring low to moderate focal ratios (from f/5 to f/10).
• Simple Operation: Easily fits directly into the focuser before the eyepiece.

Product description

The economical Sky-Watcher Barlow 2x lens is an affordable optical element that doubles the magnification of the telescope it is used with by extending its focal length. To use the Barlow lens, it must be placed directly into the focuser, and then the chosen eyepiece is placed into the Barlow lens.

For example, a BK705AZ2 telescope equipped with a 25 mm eyepiece has a base magnification of 20x. If we use the Barlow 2x lens in the Sky-Watcher 705AZ2 telescope with the same 25 mm eyepiece, we will achieve a total magnification of 40x (2x20).

The Barlow lens delivers its best performance when paired with telescopes of low and moderate focal ratios, ranging from f/5 to f/10. Two main benefits can be achieved by utilizing this Barlow lens. First, you increase the maximum magnification capability of your telescope. Second, with properly selected focal lengths (for instance, when owning two different eyepieces), you can obtain twice the number of available magnification combinations.

Technical specifications