Skywatcher 0.7x Reducer Flattener for Skymax 200 DX

Optically matched to the Skymax-200DX Maksutov-Cassegrain, the two-lens Focal Reducer/Flattener has a reduction factor of 0.7x, providing a faster telescope focal ratio of f/7. It comes with a standard adaptor with M48 thread and 55mm back focus For use with a DSLR, use in conjunction with Sky-watcher’s M48 Canon or Nikon T-ring adaptor. The Reducer/Flattener produces a fully illuminated and corrected image circle of 30mm diameter and is therefore perfectly suitable for image formats up to APS-C but can also be used for full format. 0.7x Focal Reducer / Field Flattener Effectively reduces Focal Ratio of Skymax-200DX to f/7 Two-Lens Optical Design Image Circle 30mm 55mm Back Focus M48 x 0.75 Adaptor thread