Polytec PDV-100 User Manual

4-5
4 Making Measurements
4.3.2 Stand-off Distances
The stand-off distance is measured from the front edge of the retaining ring
for the front lens (refer to
SECTION 7.2.5). The optimal stand-off distances can
be ascertained as follows:
Equation 4.1
i.e. for l = 138mm the optimal stand-off distances are:
96mm, 234mm, 372mm, 510mm, etc (refer to
SECTION 7.2.3 and
SECTION 7.2.4).
n 0; 1; 2;...
l 138mm

Polytec PDV-100 Specifications

General

Brand	Polytec
Model	PDV-100
Category	Measuring Instruments
Language	English