Swarovski Optik NC 2 - Manual (Page 12)

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Functional test
If no image appears in your NC 2 after having been
switched on, proceed according to the following
steps:
• In case the screen does not illuminate:
1. Lens aperture set on position c: Set the lens
aperture to its largest value (smallest f-stop
value).
2. Batteries ran out of capacity: Remove both
batteries and put them back in according to
the point “Inserting the batteries”. In the event
that the screen still does not illuminate, insert
fully new batteries. If the screen still does not
illuminate, the instrument is defective. Send the
instrument in to be repaired.
• In case the screen radiates a great deal of
“noise”:
Check whether the cap on the objective lens
side was taken off and the objective lens aper-
ture is open (i.e. has a small f-shop). Check the
light conditions of the scene to be observed. In
complete darkness (under 0.1 mlx) the image
intensifier tube cannot produce sufficient image
contrast and the image begins to radiate noise.
• Black spots are visible on the screen: check
whether the cover glass is dirty.
maintenance and care
Clean dirty optical elements initially with a dust
brush or a soft cloth and then with a special optical
lens cleaning tissue. For hard-to-remove dirt first
breathe on the lens to moisten it.
Pay attention to the following:
• Keep glass surfaces free of oil and grease.
• Do not touch glass surfaces.
• Avoid scratches on glass surfaces.
Accessories
camera adapter
As a special accessory we offer a camera adapter
which can be screwed onto the NC 2 in the place
of the eye cup to allow photography with a mirror
reflex camera.
SwArovSkI optIk cleaning Set
The SWAROVSKI OPTIK Cleaning Set has a belt
pouch and includes moist cleaning wipes, a
cleaning brush and cleaning fluid plus a microfibre
cloth.
Careful and regular use of high-quality cleaning
materials increases the service life of your pro-
ducts.
All data are typical values.
We reserve the right to make changes regarding design and delivery.
We accept no liability for printing errors. BA-652-03, 12/2012