【Product Usage】The visionking image rectifier can be mounted on a Newtonian reflecting telescope to fix the up side down image.
【Extender Magnication】1.5X magnifying positive prism is equivalent to 1.5 X Barlow lens, which can not only correct the image, but also magnifies the image.
【Compatiblity Problems】Compatible with all 1.25" eyepieces, it has a standard M42x0.75mm thread, also suitable for DSLR cameras.
【Material】All-metal aluminum alloy lens barrel, multi-coated lens, apochromatic design, make the image clearer.
【How to Use】: Simply insert the Erecting Prism lens into your telescope's focuser or diagonal, and then insert any 1.25 inch eyepiece into the Erecting Prism lens, gently securing it in place with the thumbscrews. Then, adjust the telescope's focus wheels to enjoy 1.5X the magnification of the eyepiece used.