Research Grade H-alpha 0.4x Telecompressor 2″ for Solar Spectrum ;
The RG 0.4x telecompressor with 46mm free aperture is suitable for
for RG46 Research Grade Solar Spectrum H-alpha Filter ;
74mm working distance (distance to camera sensor), optimized for
Videography and imaging of the entire sun. Ø 16 mm corrected
Picture;
Mounted directly on the SolarSpectrum filter on the eyepiece side and
reduces the focal length previously extended by the telecentric system
loss-free again by a factor of 0.4 ;
Thread 2″ male. / 2″ male. (suitable for 2″ universal flange
#2958240) ;
For photographic or webcam applications, the telecompressor is used
to adjust the focal length to possibly bad seeing conditions