Accessories for Deep-sky Photography

Discussion of Robert Little’s innovations. Introduction of the original Powerguide controller (April 1970). Introduction of an illuminated crosshair reticle eyepiece and a Varitrac reticle control (April 1970). Introduction of a Varitrac AC-to-DC converter (April 1970).

So Many Ways You Can Use a Questar

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Questar advertisement, <em>Sky and Telescope</em>, February 1969 — Questar advertisement, *Sky and Telescope*, February 1969. Questar Corporation

Sky and Telescope, February 1969, IFC.
Sky and Telescope, May 1969, IFC.
Sky and Telescope, June 1969, IFC.

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Questar advertisement, <em>Sky and Telescope</em>, April 1970 — Questar advertisement, *Sky and Telescope*, April 1970. Questar Corporation

Sky and Telescope, April 1970, IFC.
Sky and Telescope, July 1970, IFC.
Sky and Telescope, August 1970, IFC.