Astromania Barlow Lens 5X 1.25 Inch - 4-Elements Multi-Coated Metal TeleXtender for Telescope - Premium Apochromatic Design Telescope Accessories for Astronomical Photography

Astromania 1.25" 4-Elements 5x TeleXtender Premium Barlow Lens - apochromatic Barlow lens giving an excellent image
Astromania Barlow lenses stand for high optical quality. The four-element design provides excellent colour correction and ensures pin-sharp, high-brilliance images of the night sky.
 

•  Increase The Magnification Of Your Eyepieces

Use this premium Barlow lens between your eyepiece and telescope. This will increase the magnification without noticeable loss of optical quality. In comparison, a poorly corrected achromatic lens would decrease the contrast.The Barlow lens can therefore also be used as an alternative to having an additional eyepiece. The advantage is that you still have the better eye relief of an eyepiece with a longer focal length, meaning you can always observe in comfort.


•  Premium Apochromatic Barlow Lens

As optical quality here is critical, you should really use a high-quality Barlow lens. Without a Barlow lens planets appear tiny and virtually no detail can be seen. Only by inserting the Barlow lens can planetary images be made to appear a reasonable size. The better the correction of the lens, the better and sharper the image of the planet will appear.Achromatic lensis a compound lens made by combining lenses of different glasses with different focal powers so that the light emerging from the lens forms an image almost free from unwanted colors.