NOTE ON THE DESIGN OF TWO ROSS TYPE PHOTOGRAPHIC OBJECTIVES
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UNAM, Instituto de Astronomía, CD MEXICO, DF, MEX
Abstract
A Ross type photographic objective was designed in order to examine and measure the line deflection in the vicinity of a gravitational field as predicted by Einstein. This objective is of 30 focal ratio, its diameter is 12.5 cm and it covers a 4 degree fi