Vashishat  offers  high-quality spectrometer which allows students to perform accurate prism and grating spectrometry. High-quality, large aperture optics produce sharp spectral images, while precision machining allows for precise rotation and accurate measurement. It is capable of high performance. The main structure is of heavy cast metal with bright plated fittings.

• Scale  150 mm diameter circle is fixed, the table and telescope movements are completely independent of each other. the table is attached to the double ended vernier which reads 1 minute of the arc. The 150mm graduated disc scale features a 0 to 360°  with divisions of half degrees ( 0.5° ) and two vernier scales separated by 180°.And the vernier scale has an accuracy of 1 angular minute. Both rotations have fine adjustment screws, and release of a clamping screw enables coarse adjustment to be made by hand.
• Collimator mounted on fixed pillar and fitted with 178 mm focus achromatic objective, 25 mm clear aperture.
• Telescope mounted on moveable pillar and fitted with 178 mm focus achromatic objective, 25 mm clear aperture. Also fitted is an 10x  Ramsden eyepiece and glass cross line graticule. Both the telescope and the collimator have rack and pinion focusing.
• Prism table is marked with lines to assist placing the prism with respect to the table levelling screws, and has interchangeable clamping units for prism and diffraction grating.
• Up/down motion is provided to collimator as well as  telescope tube. Two magnifying lenses are attached to the base for easy reading and increased accuracy in measurements. Supplied in wooden carrying case.