This 3x Barlow lens allows you to triple the magnification of any 1.25" eyepiece and deliver stunning image quality without adding a long reach between the telescope and eyepiece. The blackening of the edges of the Barrow lens and the internal blackening process can minimize the reflection of light during the refraction process, maximize the saturation and contrast of the image color, and make the image edges clearer. The whole body of this 3X barlow lens is full black metal constructed and precision CNC-machined, which is durable and can be used for a long time. High magnification for eyepieces to see more details of the moon; bands of Jupiter clearly; SVBONY 2x barlow lens is a better choice. Completely multi-coated and pure optical glass lens for optimum image brightness high contrast.Clear and bright images can be obtained for moon, stargazing, etc. Cemented doublet optic structure reduce the chromatic aberration with the increase of magnification. SV305C telescope camera adopts the latest IMX662 1/2.8” back-illuminated sensor. The camera has ultra-high sensitivity and ultra-low readout noise. It has better performance in planetary photography and lunar surface photography, and is very suitable for EAA.