Skywatcher

9334046006681

The Skywatcher 0.77x Flattener and Reducer is expertly crafted for the Esprit 120ED telescope, reducing its focal ratio from f/7 (840mm) to a fast f/5.4 (647mm). This modification significantly shortens exposure time by 68%, enabling you to capture stunning images with greater efficiency. In addition to reducing focal length, this accessory functions as a field flattener, ensuring sharp, pinpoint stars across the entire field by eliminating edge distortions and elongated stars. Featuring a fully illuminated 34mm image circle, the flattener and reducer is optimised for APS-C sensors but can also accommodate full-frame sensors. It offers a wide field of view of 3.18 x 2.12 degrees when used with a full-frame camera and 2.08 x 1.39 degrees with an APS-C crop sensor, making it ideal for capturing expansive sections of the night sky. The accessory has a 95mm back focus, which reduces to 55mm when the included back focus spacer and M48 adapter are installed, allowing for precise adjustment to achieve optimal performance. Additionally, the built-in 2-inch filter cell provides a convenient way to incorporate light pollution filters into your setup, enhancing your astrophotography by minimizing unwanted light interference. This high-performance flattener and reducer is an essential addition for astrophotographers using the Esprit 120ED telescope, providing faster imaging capabilities and ensuring distortion-free images across the sensor, whether you’re using a full-frame or APS-C camera.   About Sky-Watcher Contemporary telescope-making has advanced the simple optical designs early scopes to revolutionary, state of the art. The Sky-Watcher company believes Telescopes of quality make should no longer be expensive, but accessible to everyone. Sky-Watcher philosophy has always been to bring the vast wonders of the skies within reasonable reach of anyone with enough curiosity and courage to look up and imagine. Sky-Watcher scopes come in a large range of observational applications - from 10"Dobsonians to spotting scopes for land use.  Product Code: SKW-SWA-ESPRIT120FRF