Starfield Optics 2.0" Adjustable 0.8x Reducer: Simplifying Astrophotography Easy Back Focus Adjustment: Designed for straightforward back focus calibration, making it easy to achieve the ideal 55mm back focus. Adaptable...

  Optimize Your Astrophotography with Starfield Optics 2.5" Adjustable 0.8x Reducer Effortless Back Focus Adjustment: Designed for easy setting of back focus to 55mm, with an adjustment scale of 14.87mm...

Starfield Optics Starfield 0.8x Reducer with 2" Body: Elevate Your Astrophotography Reducer and Field Flattener: The Starfield 0.8x Reducer serves as both a reducer and a field flattener, essential for...