The first moment that a Dorr binoculars should pay attention
to when buying is the leading number. For those who forgot what this parameter
is, recall its brief definition. The leading number is the product of the
working Dorr binoculars aperture (the one with which the survey is
performed) by the distance to the object in meters many due to the design of
the reflector, the leading number changes depending on the focal length of the
lens.
When working with a wide angle lens, the leading number
decreases, since the light Dorr binoculars is distributed over a larger area,
and when working lens it increases since the light flux is distributed over a
smaller area. That is knowing the Dorr binoculars leading number it is easy to
determine the maximum distance that the functions are standard changing the
beam width depending on the lens focus change in the automatic mode in the
range.
The flash head can be tilted change of pulse power from reflective
power saving function the Dorr binoculars has several they can be combined into
a single without the main is connected to the Dorr binoculars it can control up
to three groups in each group, if necessary, are set differently.
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