The
superior quality achromatic objective has an aperture of 25 mm and focal length
of 17.5 cm. It contains a fine quality 10 x 0 Ramsden eyepiece and 90º Cross
Line Graticule. The working distance is adjustable by rack and pinion and the
lens has focus from One meter to infinity. The carriage of the telescope (with
up and down motion, improved design, college pattern) tube is fitted with
vertical movement by a fine micrometer screw. Focusing arrangement is given by
rack and pinion. Complete on a heavy metallic stand having pillar of 18"
length of 15 mm diameter. Both tubes of telescopes are of brass metal. Supplied
with scale and scale holder with detailed working manual.
For use with Mirror
Galvanometer or an Optical lever or for general laboratory utility.
