Advanced Reading Telescope PSAW |
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| Advanced Reading Telescope PSAW
(1256 B ) |
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Achromatic object glass focal length 178 cm and 25 mm clear aperture. 10 x ramsden eyepiece & focussing by rack and pinion (with up and down, to and fro motion) range from 1000 mm to infinity. Carriage for telescope with adjustable ring to stop adrupt falling, fitted with adjustable screws for precise vertical and horizontal positioning ; scale and scale holder are provided with stand, 25 mm dia steel pillar, 450 mm long fitted on a heavy cast iron base with three leveling screws. Both tubes of the telescope are of brass. Supplied with scale and scale holder and fitted with cross wire but without cross line graticule.
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