This OPL spectroscope is larger than its portable counterpart and has fixed slit and focus, very much ideal for table top or lab use. It is widely use in classrooms for gemological studies.
Along with its Unique Stand (Sold seperately), gives this spectroscope to hold the stone and view it at perfect angel for best illumination and viewing and also allows 360° Rotation.
Features :
- Fixed : It comes with fixed slit and focus with a 600 lines per millimetre fine quality diffraction grating, providing a sharp spectra with relatively low intensity light
- Strong : Buit from Stainless steel and black acetol
- Well known : In use over 35 years. Highly respected by professional gemologist and gemological teaching centers worldwide
- Publicised : Appear and published in "A Student's Guide to Spectroscopy" by C. Winter
- Made in England
