![Drawings for graphic telescope varley](https://upload.wikimedia.org/wikipedia/commons/2/24/Drawings_for_graphic_telescope_varley.jpg)
The graphic telescope is a type of
camera lucida
A ''camera lucida'' is an optical device used as a drawing aid by artists and microscopists.
The ''camera lucida'' performs an optical superimposition of the subject being viewed upon the surface upon which the artist is drawing. The artist s ...
that has the power of a
telescope
A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. Originally meaning only an optical instrument using lenses, curved mirrors, or a combination of both to observ ...
. It was invented by
Cornelius Varley
Cornelius Varley, FRSA (21 November 1781 – 2 October 1873) was a British water-colour painter and optical instrument-maker. He invented the graphic telescope and the graphic microscope.
Biography
Varley was born at Hackney, then a village ...
in 1809.
[ It can be used to draw broad landscapes.
Graphic telescopes allow the size of the projected image to be adjusted.] They can be used separately, or with a portable table to reduce vibrations. They may also be mounted in a vehicle.
See also
* List of telescope types
The following are lists of devices categorized as types of telescopes or devices associated with telescopes. They are broken into major classifications with many variations due to professional, amateur, and commercial sub-types. Telescopes can be ...
References
External links
Camera lucida and Varley Graphic telescope
*
* (includes 1840 magazine article on instrument)
another
Artistic techniques
Telescope types
{{observatory-stub