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 the addition of filters inside the reducer, enhancing photographic capabilities.

Specifications

Design:Corrector and reducer for refractor telescopes

Telescopic connection:M63x1 external thread

Camera connection:M48x0.75 external thread

Reduction factor:0.8 xLenses:3 lenses with ED element

Coating:multi-coating and internal blackening

Working distance:variable (adjustable)

Adjustment range of the distance:0-17 mm stepless

Suitable for:Refractor telescopes from 102 mm to 155 mm aperture with focusers from 2.5"