Hand Held Diffraction Spectroscope
With Adjustable Focus
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HAND HELD DIFFRACTION (GRATING) SPECTROSCOPE
This spectroscope has adjustable focus.If you have had problems with the cheaper fixed focus spectroscopes then this may be the instrument for you.
This spectroscope has been used throughout the world for more than 35 years & is recognized and respected by gemmologists & gemmological teaching centers worldwide.
It is an ideal instrument for a small gemmological kit, or is easily carried in a pocket.
Perfect for use at antique fairs, for field use or general study purposes.
Constructed of heavy duty aluminium with a matt black finish.
* Size: Length: 54mm (closed) to 62mm (fully open)
* Diameter : 15mm
* Material: Optical glass, Aluminium Case
* Leatherette Storage Case
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