Starfield Optics 2.0" Adjustable 0.8x Reducer.

  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 for Complex Setups: Eliminates the hassle of dealing with multiple adapters, even when using additional accessories like filter wheels and rotators. Precision Fine Tuning: Allows for fine adjustments with just a small twist, ensuring perfect focus and image quality. Simple Installation Process: Directly attaches to the Géar 80 / 90 mm telescope focuser, with easy removal of the Axil lock using the provided 1.5mm Allen key. Versatile Compatibility: Suitable not only for the Géar series but also for other telescopes ranging from 70mm to 102mm aperture. Customizable for Various Telescopes: Accommodates different focal ratios and telescope sizes, with specific back focus measurements for each (e.g., 102mm/f/7 - 55mm). Internal Filter Capability: Designed to allow