Vortex Optics VIPER HS 2.5-10X44 RIFLESCOPE - Manual (Page 3)

6–24x50 Model
HS
RIFLESCO PE
5 4
R
iflescope
A
djustments
Reticle Focus
Once this adjustment is complete, it will not be necessary to re-focus
every time you use the riflescope. However, because your eyesight may
change over time, you should re-check this adjustment periodically.
To adjust the reticle focus:
• Look through the riflescope at a
blank white wall or up at the sky.
• Turn the eyepiece focus knob in or
out until the reticle image is as crisp
as possible.
• Note: Try to make this particular
adjustment quickly, as the eye will try
to compensate for an out-of-focus reticle.
The Viper HS riflescopes use a fast focus eyepiece designed to quickly and
easily adjust the focus on the riflescope’s reticle.
All riflescope reticles can be termed either first focal plane (FFP) or
second focal plane (SFP), depending upon their internal location within
the riflescope. This model features the second focal plane design.
Second Focal Plane Reticles
Second focal plane (SFP) reticles are located near the scope’s eyepiece
behind the image erecting and magnifying lenses. This style of reticle
does not visually change in size when you change the magnification.
The advantage of an SFP reticle is that it always maintains the same
ideal visual appearance.
Listed reticle subtensions used for estimating range, holdover, and wind
drift correction are accurate at the highest magnification. Note: Listed
BDC reticle subtensions for a 6–24x50 model are accurate with the
magnification set at 18x.
R
eticle
o
ptions
The Focal Plane
Warning
Looking directly at the sun through a riflescope, or any optical instrument,
can cause severe and permanent damage to your eyesight.
Adjust the reticle focus
The red dot indicates the magnification
to use with the Dead-Hold BDC reticle
(BDC model only).