The EdgeHD .7x Focal Reducer Lens makes your EdgeHD 800 one full f-stop faster than f/10, doubling the equivalent exposure at f/10. 4-element lens design. Maintains similar flat-field performance as native EdgeHD optical design
The Explore Scientific 3in 0.7x Reducer - Corrector reduces the effective focal length of a particular instrument by the factor 0.7x (for f/8) and 0.8x (for f/10) respectively. The reducer/corrector not only reduces the focal length but also operates as a very effective field flattener.
The Takahashi Reducer CR 0.73X is a is compatible with the Mewlon 250 CRS and FSQ-106EDX4 telescopes, providing a focal length reduction of .73X. The reducer produces a 44 mm diameter image circule suitable for medium format cameras and chips.
The Takahashi FC-35 reducer is a 0.66X reducer designed to work with the FC-100DF, FC-125, FS-102, FS-128 and FS-152 telescopes. This versatile reducer produces a 44 mm diameter image circle and a 0.66X reduction in focal length.