| Tripods
By
far, the most frequently used camcorder support
is a tripod. We explain tripod ins and outs in
the August 2003 issue of Videomaker, so let's focus on how
to use them here.

A
tripod is an absolute must for your production
kit. If you're buying a new tripod (and if all
you have is a Box-Mart special, you should) pay
at least enough to get three essential characteristics:
stability, smooth panning and a leveling head.
Above all, the unit should be stable. A tripod
is worthless if it quakes like an aspen leaf.
On less pricey models, sacrifice light weight,
if you have to, in exchange for a unit as inert
as a boulder. Next, insist on smooth panning and
tilting, with adjustable drag to fine-tune movement
resistance. Finally, get a unit with a leveling
head, so you don't have to futz with the leg lengths
in order to get a flat platform.
Tripods
last so long that you should over-buy for your
present needs. After all, they'll be able to lay
that tripod in your grave someday, along with
your broadsword and shield.
As
a rule, use a tripod every single time you make
a shot from a fixed spot. Learning to operate
one takes only a few minutes. First, aim the front
leg at the middle of the scene, so that you can
stand between the other two legs. For panning,
face the center of the pan, twist your upper body
to frame the start of the shot, and move with
the pan so that you're twisted the other way at
the end. If possible, change the angle and length
of the panning handle so that you can get closer
to the rotating tripod head. When tilting, hold
the external monitor with your left hand, pivoting
it to compensate for the camera movement, so that
you always have a clear view of the frame.
Always
rehearse a move before making the shot. Adjust
the drag controls so that the pan head resists
your effort enough to keep the move creamy-smooth,
but without binding and jerking. This is another
reason for a hefty tripod: too much drag can actually
torque the legs of a lightweight model, ruining
the shot.
Two
more quick tips: a pan head camera move should
graph as a shallow bell curve, accelerating from
the start to the middle of the move and then decelerating
to a stop at the end. Finally, make sure to preset
good compositions for both the start and finish
of the pan. A strong ending composition delivers
the satisfying feeling that the camera has arrived
somewhere important.
Stabilizers
Without
camera stabilizers, The West Wing would have to
shut down production. These engineering marvels
permit hand-held shots that look almost like dolly
work. Until, that is, the camera makes three right-angle
turns, goes through four doors and runs down a
flight of steps.
Stabilizers
are like powerful editing software: they deliver
every capability you could think of and more,
but their learning curve can be daunting to all
but dedicated users. That's why Hollywood camera
stabilizer operators are usually freelance specialists
who make only stabilizer shots.
To
start with, you have to set up your rig so that
it balances and operates smoothly. This involves
counter-weighting the camera, angling the external
view screen, and adjusting all the sophisticated
tackle that connects the operator to the rig without
transferring the jiggles occasioned by walking.
If you spring for a top-line model, your Rube
Goldberg contraption will stay in balance for
a considerable time. Many consumer rigs seem to
need constant fiddling.
Then
there's the skill required to operate the rig.
You not only have to frame the subject while both
of you are making complicated moves, but you may
also have to pull focus and zoom while doing all
this. This means shlepping a lot of weight around
and larger stabilizers must actually be worn,
rather than carried. On big production shoots,
you'll see short, inch-thick pins clamped upright
near the sets so that the camera stabilizer rig
can be detached from the operator and hung up.
In short, stabilizers permit breathtakingly long
and fluid moves, but don't expect to unpack your
new beauty and start ballet dancing.
One
more point: although simple stabilizers for lightweight
camcorders are no more expensive than comparable
tripods, the rigs required for professional-size
cameras can run into the tens of thousands of
dollars. |
Dollies
Nothing
says "major production" like the sight
of a dolly festooned with camera, lights, operator
and focus-puller, gliding majestically along on
rails smooth enough for a high-speed train. The
types of dollies that you can use vary so much
that some can be packed in a couple of canvas
bags (track and all) while others need a truck
with a lift-gate to carry. Even so, dollies come
in two basic flavors: floor models and track models.
Floor types roll on pneumatic tires that are smooth
and silent. They are versatile because they can
be readily steered. A crab dolly can turn all
four wheels up to 90 degrees and change direction
completely in the middle of a shot.
Track
dollies use flanged wheels that mate to proprietary
rails. On the one hand, they take much longer
to set up because you have to build them like
toy train layouts. On the other hand, they permit
ice-rink smoothness across all kinds of lumpy
terrain outdoors. The tracks also make it easy
to repeat moves (for additional takes) with micrometer
precision.
Why
use a dolly rather than a stabilizer rig? First,
dollies are well suited to longer takes that include
passages without movement. Secondly, a dolly can
make a push in (or pull out) so slowly that the
audience never notices it. This is a great technique
for intensifying a performance. Though the process
is invisible, the performer grows gradually larger
and more important in the frame.
On
the down side, dollies are expensive to buy or
rent and are time-consuming to prepare for shooting.
They also require larger crews to operate and
plenty of rehearsal time.
What
about the wheeled three-armed spreaders that turn
tripods into dollies? Unless they're exceptionally
expensive and heavy, they're too jerky for moving
shots, even on studio floors. In reality, they're
just convenient ways to move tripods from one
setup to the next and the wheels are not used
during shooting.
Booms
Look
at footage from a rock concert or an awards show
and you'll see camera booms in all their glory,
sweeping above the action, not to mention around,
below and through it. These shots all use a boom,
jib or crane of one kind or another. The most
common type of camera boom balances the camera
on one end with counter-weights on the other,
and the entire arm rests on a pedestal. The operator
can, while watching a monitor, pan, tilt, focus
and zoom the camera by remote control. In sophisticated
models, the camera and the boom both pan and tilt
synchronously, all while the boom cranes up and
down. Mount it on a dolly and you really have
some serious movement choices.
The
most gee-whiz models can cost you up to six figures,
but shorter, simpler types can be surprisingly
affordable. Because they're clumsy and time-consuming
to transport and prep, booms are generally reserved
for more ambitious productions or for studios
in which they can remain set up. They can also
weigh quite a lot and take up a significant amount
of space as well.
Should
you consider a camera boom? Yes, if you make music
videos or commercials that require hot-dog camera
moves. They're also heaven-sent when you have
to shoot in (and over) crowds. Even if the camera
doesn't fly all over the place, just hoisting
it six feet above everybody else while panning
and tilting to follow the action can deliver shots
from the perfect point of view. We have colleagues
who get jobs just because the word is out on the
street that they own a boom. Have you ever seen
a local car commercial that didn't use a boom?
Besides, operating a boom-mounted camera is more
fun than playing computer games.
Lens
Stabilizers
Because
it's not a separate accessory, we haven't included
optical or electronic lens stabilization. Lens
stabilization can work astonishingly well, as
long as you remember a few simple rules:
-
Keep the lens at the wide-angle end of its
zoom.
-
Handhold
as carefully as if you did not have image
stabilization.
-
Turn
off stabilization when working on a tripod
to minimize false corrections during pans
and tilts.
You
should, however, experiment with the stabilization
enabled while on a tripod. Some units work very
well that way, even smoothing out small glitches
in the tripod movements.
Contributing
Editor Jim Stinson is the author of the book Video
Communication and Production. |