Baader 2" SolarSpectrum 0.7x TeleCompressor - CMPRSR
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- Mounts directly to the SolarSpectrum filter on the eyepiece side to reduce focal length of a telecentric system by a factor of 0.7
- 110 mm working distance to the camera sensor
- Both sides contain 2" male threads to fit the Baader Universal Flange Adapter #2958240 that comes with SolarSpectrum H-Alpha filters
- Telecompressors are beneficial for tweaking the focal length in a poor viewing envirnoment, as well as for expanding the field for photographic or webcam operations
Works with all SolarSpectrum H-Alpha filters featuring 2" male threads on each side. Parallel light with a ray path of at least f/30 is a prerequisite for Solar Spectrum H-Alpha filters. This is attained via Baader telecentric system focal length (or possibly by dimming the lens with the iris). Due to the focal length extension of many telescopes, the sun does not become fully discernible when 30 to 35 mm eyepieces are employed.
This Solar Spectrum Telecompressor is mounted directly to the filter via the eyepiece side to again reduce the already extended focal length by a factor of 0.7x, resulting in a now completely visible solar disk with prominences.