loosen and tighten the mechanisms for fluid motion or static
shots. You should avoid unscrewing any of the knobs all the
way, and there should be no need to over-tighten them.
Adjust the position of the lens in small increments until it remains
level when the Head’s tilt knob is loose.
Note: because there is some damping friction in the tilt mechan-
ism, the lens may stay level even when it is slightly unbalanced.
This is okay, but if you wish to fine tune the balance even further,
gently tilt the lens up 20 degrees from level and then down 20
degrees from level. If it’s easier to tilt the lens up, slide the lens
slightly forward. If it’s easier to tilt the lens down, slide the lens
backward. Adjust in this manner until the resistance is symmetric.
Proper Horizontal Balance:
1. Carry a small ball head, attach a quick-release plate to
the bottom of it, and attach the ball head directly to the
clamp on the Wimberley Head. This eliminates the need to
adjust the legs of the tripod to level the horizon or to remove
the Wimberley Head, but it can be inconvenient to have to
carry an extra head with you.
2.Use a small beanbag with the Head; you can set the
beanbag on the top of the Head itself, or on top of your big
lens while it is still attached to the Head.
Other alternatives for attaching the camera body to
the Sevenoak Gimbal Head:
Once you have properly adjusted the forward-backward position
of the lens, you may need to adjust the vertical position of the
lens (especially telephoto lenses smaller than a 600 f/4 or 400
f/2.8).
Loosen the platform wing knob and adjust the vertical position
of the platform so that the center of the lens is slightly above
the tilt axis of the Head (see figure to the right).
Loosen the tilt knob and tilt the front of the lens about 30 degr-
ees toward the sky. When you let go of the lens, if it wants to
keep going up in the direction that you’ve tilted it, you need to
lower the position of the lens by adjusting the position of the
platform. If the lens wants to return to a level position, you need
to raise the position of the lens.
The goal is to perfectly balance the lens so that it stays pointed in
any position even when the Head is completely loose. Fine tune
the vertical and forward-backward position of the lens until you’
ve achieved perfect balance. Once you have done this a few times,
it gets much easier to do and will take very little time to achieve as
you get more practiced.
TIP: Once you are able to let go of the camera/lens combo in any
position with the tilt and pan knobs loose and it stays in a balanced
position without moving at all, you may want to mark the exact
position of your lens plate within the clamp, and your platform
position on the tilt arm, with a pencil, permanent ink marker or tape
for faster set up in the field.
The Head is now ready to use. Simply loosen the pan and tilt knobs
about a quarter turn and start shooting. If you have done everyt-
hing properly, the lens should be very easy to point, should stay
pointed and should not tend to flop or creep. As you become more
familiar with the Head you will probably be better able to make fine
adjustments in the balance of your setup. You can shoot with the
knobs loose, or lock - in on a target by tightening the knobs. You
should not need to loosen the knobs more than a few turns to
unlock the Head. Conversely, there should be no need to over
-tighten the knobs. If things don’t feel right, please contact us.
Knob screws are captive and should not loosen or come o on
their own.
The tilt and pan knobs should tighten with enough friction to keep
the Head from moving on its own. The pan base and swing arm
should not move easily when the knobs are fully tightened.If sig-
nificant force is applied, the Head will slip slightly on the spool
when the panning knob is tightened all the way. THIS IS NORMAL
AND DOES NOT AFFECT PRODUCT PERFORMANCE. When using
the Head, you can put a small amount of friction on both the pan
and tilt to hold the position of your lens and rotate it with a bit of
force as needed. This is not going to going to damage your Head.
Only a single turn or two of the pan and tilt knobs should allow you
to
STEP 3: Balance the Vertical Position of the Lens:
MAINTENANCE & TROUBLESHOOTING:
A 7/32 hex key fits the 3/8”-16 center
screw on the top of the pan base of
your Sevenoak Gimbal Tripod Head
(see figure at right). This screw applies
pre-tension to the pan base (so there
is no slop in the mechanism),and adjusts
the minimum drag for the pan base.
You should not have to use this adjustment
on a regular basis. The minimum drag is the amount of
resistance in the pan mechanism when the Head is
un-tightened. We have set the minimum drag for your Head
to a level that we feel is optimal for field use. You should not
need to adjust the screw unless you experience an undesirable
change in the Head’s minimum drag as the Head wears in.
CAUTION: Only a very small adjustment should be necessary;
do not remove the screw or back it out excessively. Doing
so could compromise the screw’s ability to lock in place and
the performance of your Head.
Fine Tension Adjustment of Your Pan Base :
Firmly tighten the pan knob, then turn the Head counterclo
ckwise. It should loosen easily from the platform during the
first rotation.If the Head has been on the tripod for a while,
more force may be necessary to remove it. If the Head is
stuck, try using the lever age hole for removal (see details at
Removing the Head from your tripod :
the bottom of page 3). The pan base screws do not tighten
the Head to, or loosen it from, the tripod mount.
In extreme situations where it is not feasible to send the head
in for repair, and you wish to attempt to fix a problem yourself,
you do so at your own risk; however, these guidelines will help
improve your odds of success and help you to avoid making the
situation worse. Note: Any field repair should be followed up
with a proper repair from us as soon as possible.
Emergency Repairs:
Few things are likely to go wrong with the SK-GH01, and there
should be almost no need for routine maintenance of internal
parts. However, if the Head is in need of repair, we ask that you
return the Head to us for inspection and service. (International
customers should contact the dealer who sold you the Head).
If the Head is faulty, we will fix it free of cost. If the problem
arises from extreme use, abuse or accident, we will repair the
Head for a reasonable fee.
We strongly discourage you from disassembling this unit without
direct instruction from us. Any damage to the head resulting
from disassembly will not be covered by warranty. In special
cases where an emergency repair is required, please refer to
the guidelines to the right.
IF You Have a Problem With Your Head:
Level Plane
Center of lens
Tilt Axis
Vertical
Adjustment
Platform Knob
Tilt Mechanism:
To disassemble the
tilt mechanism, remove the captivating
screw and unscrew the Tilt Knob. If
you need to remove the grease in
the mechanism, it is okay to use the
tilt mechanism without grease until
you have the opportunity to send it in for us to refurbish.
Pan Mechanism.Remove ONLY the
large central fastener on top of the
Pan base to disassemble the pan
base. DO NOT loosen or remove
the three smaller screws, and do
not attempt to remove the Pan Knob. If you clean the
components of the pan mechanism, you MUST apply oil to all
mating surfaces before reassembling, failure to do so could
cause the mechanism to gall and freeze-up permanently.
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