Scale 125 mm dia. divided 0 to 360 x 0.5 degree readable with vernier to 1 minute of arc.
Collimator achromatic objective lens 175mm FL, clear aperture of 32mm. rack and pinion focussing mechanism. Adjustable slit 6mm long. Mounted on a fixed pillar.
Telescope achromatic objective lens 175mm FL, clear aperture of 32mm. rack and pinion focussing mechanism.Mounted on a movable arm with slow and fine motion.
Ramsden eyepiece 15X magnification with cross line glass graticule and in and out focus adjustment.
Prism Table 85mm diameter table is provided with three leveling screws and is marked with lines to assist placement of prism.
Standard accessories include 1 prism clamp for prisms up to 38mm high, 1 Diffraction grating holder, 1 Tommy bar for axis adjustment. Supplied in plywood cabinet.
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