SVBONY SV193 2-inch 0.8x Photo ReducerFlattener for SV503 80ED Refractor Telescopes

The back intercept is 55mm. This SV503 accessory is ideal for the SVBNOY SV503 80mm f/7 ED refractor telescope and similar telescopes. It shortens exposure times for astrophotography. The 0.8x defocus system shortens exposure times. With advanced refractor telescopes, you can take stunning astrophotography without worrying about distortion of star points at the edge of the photo. The back end features an M48x0.75 thread and can be connected to a camera mount via a T-adapter (sold separately). It supports full-frame cameras. Fully multi-coated optics are housed in a highly polished, high-transmittance enclosure for a clear, sharp view. Sturdy metal construction: Made of aluminum alloy material, it is sturdy and durable. The aluminum body with a hard anodized finish helps reduce weight.