The 0.84x reducer can bring Sharpstar 50EDPH's focal ratio down to F4.6. This is a standard reducer with field flattening capabilities as well. A shorter focal ratio allows the OTA to have a wider field of view and faster exposure times, making it suitable for capturing large areas of nebulae, star clusters, and faint, fast-moving celestial objects. The 0.84x reducer adopts a quadruplet design and supports an APS-C frame. The overall weight is 0.24kg. The back focus from the M48 thread is a standard 55mm. The front thread is M42*1 and the camera end thread is M48*0.75. At the same time, it has a built-in 2-inch filter thread, which can be directly installed and used. The overall CNC machined, both end threaded metal caps prevent ash when not in use. Specifications 50EDPH Focal Length with Reducer 230mm 50EDPH Focal Ratio f/4.6 Application 50EDPH Only Image circle 44mm Lens Quadruplet Design Back focus 55mm (including the M48 thread) Rear End Thread Type M48x0.75 (M48x0.75 filter thread inside) Weight 0.24kg 0.84x Reducer Size Diagram 0.84x Reducer Installation Spot Diagram
