Author: Irvine Clifton Gardner
Publisher:
ISBN:
Category : Photographic lenses
Languages : en
Pages : 32
Book Description
This Circular provides the photographer with a set of charts by which the resolving power of a photographic lens may be numerically measured with respect to a definite scale of values. A detailed description is given of the procedure and technique to be followed in order that comparable values may be obtained by different observers. The test provides an objective method of testing a photographic lens.