Description Explore Scientific’s 3-inch Field Flattener/0.7x Focal Reducer is a multi-faceted accessory designed to enhance your astrophotography experiences. As a field flattener, this piece addresses the edge-of-field aberrations caused by curved focal planes to ensure your night at the eyepiece will result in crisp, true images. As a focal reducer, this device will reduce your […]

Features This is a field flattener for refractor-type telescopes with a focal ratio of f/5 to f/7 Causes no change to the telescope focal length 2-inch barrel to easily attach to a two-inch focuser Fully multi-coated optics T-ring thread on the device so a T-ring can be used to easily attach a DSLR camera or […]