Newcon Optik DN140M - Manual (Page 5)

7. Next, focus the scope by turning the focus ring on the sight’s
eyepiece. You may have to re-focus both lenses to achieve sharp
focus.
NOTE: For best result, use a 50mm lens. Wide angle and/or
zoom lenses typically cannot provide a full-screen image through
the DN-140M unit. Camera lens aperture setting lower (wider)
than f2.0 may result in lower image resolution.
FILM: Use an ISO 400 film or faster. Also, using a tripod is
strongly recommended due to the low shutter speeds common in
night vision photography. The following table shows
approximate shutter speeds at various ISO values with the
aperture set at f1.8.
ISO
50 100 200 400 800 1600 3200
Shutter Speed, s 1 1/2 1/4 1/8 1/15 1/30 1/60
7. b) Using DN-140M As a Rifle Scope
1. Attach the scope to the rifle using weaver weapon mount (8).
The scope is supplied with a standard 7/8” weaver mount (or
optional European Mount).
2. Turn the scope On (make sure the lens cover is on if it is
daylight).
3. Adjust the reticle by screwing the windage/elevation screws
(up-down), (left-right). Each horizontal click is 21mm/100m
(3/4“ @ 100 yards); vertical click is 12mm/100m (3/8” @ 100
yards).
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starlight or man-made light. The scope was designed to be easy
to use, and provide many years of operation.
Some of the typical activities where the DN-140M Night Vision
Rifle Scope will be useful:
• law enforcement
• hunting
• search and rescue
• wildlife observation
• night photography and video
• security
• boating
Features
• Water resistant;
• The DN-140M Rifle Scope is camera/video adaptable;
• The DN-140M comes with precision windage/elevation
adjustments.
• A self-contained Infra Red illuminator is included. It allows
observation in total darkness (i.e basement or cave);
• Long range of vision;
• Automatic brightness protection
• Soft rubberized eye piece makes the viewing more
comfortable;
• Standard and commonly available 2AA batteries ensure
nonstop operation of the device for no less than 50 hours.
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