SIMARAMALL SHOP 28 -TOMMBOYA STREET OPP ARCHIVES TAKE STAIRS TO 1ST FLOOR TURN RIGHT THE 4TH SHOP
FORMER TUSKYS BUILDING
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The prisms reinvert, or erect, the inverted image supplied by the objective of each telescope. They prescribe a folded path for the light rays, allowing a shorter overall length for the instrument. When the prisms used are of the Porro type (see optics: Reflecting prisms), they also provide better depth perception at greater distances by allowing the two objectives to be set farther apart than the eyepieces