Nikon 6445 Instruction Manual - Page 8

Adjustable focus, Maintenance, Lens cleaning, Scope Exterior, Windage/Elevation Adjustments, - buckmaster scope

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(4) Adjustable focus The BUCKMASTERS Riflescope 4.5-14x40 SF, 4-12x50 SF and 6-18x40 SF can be more precisely focused within the range of at least 50 yards (45.72m) to infinity by rotating the Side Focus adjusting ring. Parallax can be eliminated and sight alignment will be accurate. Use its distance scale as a reference guide. Note: • The windage and elevation scales of the BUCKMASTERS Riflescope 3-9x50, 3-9x40, 4x40, 4.5- 14x40 SF and 4-12x50 SF are calibrated in divisions of 1/4 minute of angle with a click at intervals of 1/4 minute of angle (half division). The windage and elevation scales of the BUCKMASTERS Riflescope 6-18x40 SF are calibrated in division of 1/8 minute of angle with a click at intervals of 1/8 minute of angle (one division). The windage and elevation scales of the riflescope 1x20 is calibrated in division of 1/2 minute of angle with a click at intervals of 1/4 minute of angle (half division). • When adjusting the reticle to the point of aim, remember that one minute of angle equals approximately one inch (2.54cm) at 100 yards (91.44 m). Therefore, if the impact point is two inches (5.08 cm) low and one inch (2.54 cm) right at 100 yards (91.44 m) Parallax Setting, you should adjust two minutes of angle up one minute of angle left. In case of 50 yards (45.72m). Parallax Setting the adjusting value is double. In case of 75 yards (68.58m) Parallax Setting is 1.5 times. Maintenance (1) Lens cleaning To remove dirt or fingerprint, soak gauze or lens cleaning paper (silicon-free paper sold at camera shop) with a small quantity of absolute alcohol (available from drugstore) and lightly wipe off. Wiping with leather chamois is not recommended as it is likely to damage the lens surface. Dust may scratch the lens surface or corrode the lens. Brush dust off using a soft oil-free brush. (2) Scope Exterior Use a soft dry cloth to wipe off any dirt or finger-prints that might accumulate. It is not necessary to oil the scope's surface. (3) Windage/Elevation Adjustments These adjustments are permanently lubricated. Do not attempt to lubricate them. Cover with caps supplied, except when adjusting, to keep out dust and dirt. (4) Eyepiece Adjustment This adjustment is permanently lubricated. Do not attempt to lubricate. (5) Power Selector Ring No lubrication is required on the power selector ring. Do not loosen or remove screws in power selector ring.

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(4) Adjustable focus
The BUCKMASTERS Riflescope 4.5-14x40 SF, 4-12x50 SF and 6-18x40 SF can be more precisely
focused within the range of at least 50 yards (45.72m) to infinity by rotating the Side Focus adjusting
ring.
Parallax can be eliminated and sight alignment will be accurate.
Use its distance scale as a reference guide.
Note:
•
The windage and elevation scales of the BUCKMASTERS Riflescope 3-9x50, 3-9x40, 4x40, 4.5-
14x40 SF and 4-12x50 SF are calibrated in divisions of 1/4 minute of angle with a click at intervals
of 1/4 minute of angle (half division).
The windage and elevation scales of the BUCKMASTERS Riflescope 6-18x40 SF are calibrated in
division of 1/8 minute of angle with a click at intervals of 1/8 minute of angle (one division).
The windage and elevation scales of the riflescope 1x20 is calibrated in division of 1/2 minute of
angle with a click at intervals of 1/4 minute of angle (half division).
•
When adjusting the reticle to the point of aim, remember that one minute of angle equals
approximately one inch (2.54cm) at 100 yards (91.44 m). Therefore, if the impact point is two inches
(5.08 cm) low and one inch (2.54 cm) right at 100 yards (91.44 m) Parallax Setting, you should adjust
two minutes of angle up one minute of angle left. In case of 50 yards (45.72m). Parallax Setting the
adjusting value is double. In case of 75 yards (68.58m) Parallax Setting is 1.5 times.
Maintenance
(1) Lens cleaning
To remove dirt or fingerprint, soak gauze or lens cleaning paper (silicon-free paper sold at camera
shop) with a small quantity of absolute alcohol (available from drugstore) and lightly wipe off. Wiping
with leather chamois is not recommended as it is likely to damage the lens surface.
Dust may scratch the lens surface or corrode the lens.
Brush dust off using a soft oil-free brush.
(2) Scope Exterior
Use a soft dry cloth to wipe off any dirt or finger-prints that might accumulate.
It is not necessary to oil the scope’s surface.
(3) Windage/Elevation Adjustments
These adjustments are permanently lubricated. Do not attempt to lubricate them. Cover with caps
supplied, except when adjusting, to keep out dust and dirt.
(4) Eyepiece Adjustment
This adjustment is permanently lubricated. Do not attempt to lubricate.
(5) Power Selector Ring
No lubrication is required on the power selector ring.
Do not loosen or remove screws in power selector ring.