Lhires III is a very high resolution spectrograph designed for amateur and educational astronomy. Numerous projects are within reach thanks to the technology involved in this instrument. Professional/amateur collaborations have been done with Lhires III spectrographs.
* power of resolution R ~18000 * resolution of 0.035nm near Halpha * wavelength selected by micrometer * mirror slit 15-35µm, reflective for guiding (other slits available in option) * Schmidt-Cassegrain telescope adapter delivered in standard (two inch available)
* NEW: internal argon-neon or neon lamp for calibration * NEW: internal tungsten for flat * NEW: motorised calibration for remote operations * NEW: improved C-mount guiding port (focal ratio: 0.8x) The guiding camera backfocus range is 15.5mm to 21mm with a C-thread (1inch diameter, 32 threads per inch).
* switchable grating modules (2400 gr/mm in standard; 1800 gr/mm, 1200 gr/mm, 600 gr/mm, 300 gr/mm and 150 gr/mm in option) * possibility to put an eyepiece * photo tripod adapter available for public outreach (visual solar spectrum)