SVBONY telescope camera adapter keeps the beautiful and interesting view of the telescope or microscope easily You can attach the camera to the telescope conveniently since using this SVBONY adapter combination You can also share with your friend or family through the camera screen;pictures and video which is available Compatible For Canon EOS & Rebel SLR & DSLR Cameras. Barlow Lens Application High magnification for eyepieces to see more details of the moon;bands of Jupiter clearly;SVBONY 1.25" 2x Barlow lens is a better choice. The Barlow lens also could provide more magnification without reducing the exit hole on the eyepiece;it keeps a comfortable observation with wide view. Barlow lens could also provide more magnification without reducing the exit hole on the eyepiece. This barlow allows you to be able to disassemble it, taking off the black lens portion allowing you to add it to other possible configurations. with a 20mm eyepiece on my 80/f5 I get 20x. Using the bottom lens screwed into the eyepiece I get 30x. Used normally with the eyepiece inside the barlow I get 40x SVBONY universal cell phone adapter mount makes it easy to position a point and shoot for high magnification photography Make your mobile phone into a video camera and images capturer;so that you can explore the nature world easily through the screen Operating tips Mount the adapter on the phone or spotting scope;screw the top knob into the end Align the center of the cell phone camera and the center hole of the adapter;then tighten the phone Open the cell phone camera;slowly insert the adapter;tighten the eyepiece clamp when the image is clear Double click the phone screen to enlarge the image to the full screen Pay attention Please make sure that the outer diameter of the eyepiece is between 25 to 48mm