Reducer ED80SfReduces the focal length of the ED80Sf refractor by 0.85x. Fast focal ratio and wide photographic field of view Usable for prime focus photography only. Comes as standard with a T-ring for Nikon or Canon EOS or Sony αThis focal reducer fits also Skywatcher 80ED apochromatic refractor.
The Vixen Reducer HD Kit for Vixen FL55SS apochromatic refractor includes the Flattener HD field flattener for FL55SS, the Reducer HD aplanatic focal reducer for FL55SS and the EX Tube 66 extension tube. Complete correcting and reducing lens system for Vixen FL55SS fluorite apochromatic refractor. Advanced Vixen AS Coating with 99.9% light transmission on...
The Vixen Reducer HD for Vixen FL55SS apochromatic refractor includes the aplanatic focal reducer for FL55SS only. In order to correctly use it you will need the field flattener Flattener HD for Vixen FL55SS sold apart or in kit. Advanced Vixen AS Coating with 99.9% light transmission on each surface.
The Vixen SD Reducer HD is an aplanatic focal reducer desigend to work with Vixen AX103S astrograph and Vixen VC200L Visac catadioptric. When used together the Vixen SD Flattener HD it can be used also onto Vixen SD optics. It delivers high contrast flat field over an imaging circle up to 44 mm, perfect also for full frame (24x36 mm) CCD/CMOS sensor.
The Vixen SD Reducer HD Kit includes the SD Flattener HD filed flattener, the SD Reducer HD aplanatic focal reducer, the EX Tube 66 extension tube and the specific extension tube to be used along the SD81S. Complete correcting and reducing lens system for Vixen SD81S, SD103S e SD115S optics.
Takahashi F/3 Reducer 0.6x for FSQ-130ED/FSQ-106ED/FSQ-106EDX4. This optical device reduces the native focal lenght of the Takahashi FSQ-106ED and FSQ-106ED4 astrograph to 320 mm (F/3) keeping an image circle of 44 mm. With the FSQ-130ED focal length is taken down to 390 mm.
Takahashi Reducer-QE 0.73x focal reducer for FSQ-106ED/FSQ-85EDX. This optical device reduces the native focal lenght of the Takahashi FSQ-106ED and FSQ-106EDXIII astrograph to 385 mm (F/3.65) granting an image circle of 44 mm (6.5°).
The Focal Reducer No. 18 F / 4.2 Is Specifically Designed For Takahashi Fs60Cb And Allows You To Bring The Focal Ratio Of F / 4.2. Also Acts As A Field Flattener. The Unit May Be Connected To A Fs60C Only If You Aqcuista The Upgrade Kit To Transform The 60C In 60Cb.