Newcon Optik NVS 15 operation manual Demist shield and sacrificial window

5.11Installation of add-on lenses.

Always make sure that the goggles is switched off when you put on or take off the add-on lens.

FIGURE 4

NVS 15 Single unit with

attached 3x lens

Note: The following procedure is identical for 3x or 5x lenses (or any other add-on lenses).

Turn off the goggles. Remove the lens cap. Press the lens firmly towards the eyepiece. Do not apply excessive pressure. Make sure that the lens is fixed well on the goggles. To return the goggles back to 1x magnification, pull off the lens.

5.12Demist shield and sacrificial window

Note: Demist Shield and Sacrificial Window are optional.

Sacrificial window protects the objective lens from the abrasive influence of sand and dust in the night time. It should be put on the objective lens like an objective cap with the daylight filter.

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