The University of Arizona
College of Optical Sciences

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Six-Draw Telescope

Signature Carpenter, London

Date Circa 1830
Dimensions English Metric
Main Tube Length 3.1in 78mm
Main Tube Diameter 1.1in 27mm
Total Length 14.9in 378mm
Closed Length 3.5in 90mm
Objective Clear Aperture Diameter 0.9in 22mm

Description

This telescope has a parallel brass barrel, covered in horn and baleen. The objective lens is an achromatic doublet.  The push-on objective lens cap contains a compass.  It has six brass draws, a four lens eyepiece, and a flared eyecup with a sliding cover. It is signed "Carpenter   24 Regent St.   London" on the eyepiece draw, with the eyecup to the right.

 

 


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