SVBONY 0.5X Telescope Focal Reducer 1.25 inches Filter Thread 28x0.6mm on Both Sides Reduces The Focal Length for Telescope Eyepiece Astronomical

Fits all standard 1.25"" scope eyepieces;Its role is to reduces the focal length of your telescope by half ;increasing the field of view;and shorter exposure times for astrophotography;usually for a longer focal length telescope. The reducer has standard 1.25inch telescope threads M28x0.6 and fits easily into any 1.25"" eyepiece or any 1.25"" photo adapter;diagonal;extender tube;increase the image field of your web cameras. Fully multi-coated optics held in a black-anodized aluminum filter cell;nice anodized aluminum housing. It is not recommended for very fast scopes or very wide angle eyepieces for visual. Screw the reducer into a 1.25"" eyepiece;and you will get a smaller magnification and a significantly larger field of view;simply use the reducer if you still need the correct eyepiece