6
2. A Tour of the Merlin
2®
Before you take your Merlin
2®
out of the box…
We’ll begin by describing the purpose of the system and identifying
the major components. Then we’ll cover the procedure for safely
unpacking and unfolding the unit. So leave it in the box for now!
Camcorders are unstable because the human beings holding them are
always in motion. Small rising, falling and side-to-side movements
don’t really show unless there’s some object close in the foreground,
but tilting the camera up, down or side-to-side by a similar amount
will noticeably affect the framing.
Activate your camcorder, go fairly wide-angle and frame
a scene across the room. Keeping the camera level, try
raising and lowering it about an inch by slightly bending
and unbending your knees, then moving it side-to-side the
same amount by slightly shifting your weight from one
foot to the other. Note that the effect on the framing is slight.
Now tilt the camera slightly to the left…to the right…up…down. Note the dramatic effect
on framing of these tipping motions.
Hand-holding a camera, particularly a small camera, results in angular motions (little ‘tilt’ and ‘pan’
corrections) which are quite disturbing because the human eye doesn’t see the world with the shakes.
So-called ‘digital stabilizers’ and optically stabilized lenses work well to eliminate vibrations, but are
useless for the large-scale bumps that occur when you attempt to walk, run or climb stairs.
The Steadicam rig works by disconnecting the camera support from the camera and allowing you just
enough angular influence to aim it. In addition to being a great stabilizer,
it is also an elegant way of
holding a camcorder to permit complicated and graceful moves that would otherwise be impossible.
Locate the following parts on Diagram 1:
Gimbal
and
Grip
. The shape of the Merlin 2 is designed to stabilize the system by placing
its center-of-gravity below the camera — in fact, just below the center of the Gimbal. The
Gimbal won’t permit any angular force to pass through it, so it doesn’t matter if your hand
shakes while holding the Grip, which is below the Gimbal and therefore isolated from the
camera.
Just above the Gimbal is the
Guide
, the small surface you use to aim the Merlin 2. Since
your “gripping hand” does all the work in supporting the Merlin 2, your “guiding” hand can
retain the extremely light touch necessary to aim the camera without transmitting the shakes.
Your camera will mount to the quick-release
Dovetail Plate
, which attaches to the
Stage
.
The
Trim Controls
on the Stage make it possible to tune the balance of the system so that
it is poised level on the Gimbal, but is every-so-slightly bottom heavy.
The
Upper Spar
and
Lower Spar
distribute the mass of the system. (Note the tapered
Start and Finish weights screwed together at the end of the Lower Spar.)
The
Folding Caliper Hinge
has two functions: It permits the Merlin 2 to fold and
unfold between the travel (storage) and shooting positions; and it adjusts the size of the arc
between the upper and lower spar, to tune the vertical balance of the Merlin 2.
The Parts
