PRO HD
Brighton on Friday
Learning videography with the GY-HM100
Darren Clementson, editor and As an editor and filmmaker, Darren has The small size of the camcorder certainly
filmmaker, recently purchased
used JVC’s products before and was happy didn't mean there were any shortfalls on
JVC’s new hand-held GY-HM100
with the result that the GY-HM100 produced. performance. "The JVC GY-HM100 is still
camcorder to help create his debut
“I have been an Apple Certified professional able to produce broadcast quality images,”
film, Brighton on Friday. Darren
for the past five months, specialising in Darren continues, “and its low weight is
reveals why he chose the GY-HM100
Final Cut Pro and DVD Studio Pro,” Darren an obvious advantage over its main rival,
reveals. “I decided to start with a solid base the Sony A1E – the GY-HM100 is slightly
for his project, and how this helped
so an Apple Certification was a must for me. bigger in size, but lighter.
him learn the key skills needed.
The projects I have undertaken so far are
non-profitable and a chance for me to gain
“The GY-HM100 allowed
valuable experience.
me to practice techniques and
still achieve outstanding results”
“My first project was called Reflection;
equipment was minimal during filming and
“Using the SDHC cards for recording
consisted of a Manfrotto 785B tripod and
means it's quiet and very reliable. I also
the JVC GY-HM100 with SDHC class 6
liked the focus assist feature, as this
memory cards. All this was able to fit neatly
made shooting easier in manual control
in a rucksack for transporting. I found the
mode, especially when using depth of
camera to be compact, comfortable to use,
field in my film Brighton on Friday. As
and I like the fact it shoots 35mbps full HD
an inexperienced videographer, the GY-
1080 on SDHC cards in native Final Cut
HM100 allowed me to practice techniques
Pro QuickTime .MOV – this is a very cool
and still achieve outstanding results.”
n
feature for any FCP professional.” www.blinkdjc.com
Over- and under-cranking
How to achieve the effect with the GY-HM700
The term over/under-cranking The digital equivalent, while still being system will play them at precisely this rate,
actually comes from the time when
called over- and under-cranking, uses a and the desired effect of slow- or fast-
‘analogue’ film cameras were still
different technology to achieve the same motion will be achieved.
manually operated. The operator
effect, altering the number of images
While fast-motion can be achieved by
had to turn a manual crank in order
shot per second. In an electronic camera,
deleting frames from an existing recording,
to move the roll of film inside the
nothing is turning that can be accelerated
true slow-motion effects can only be
or decelerated; instead the number of
camera; the faster the crank was generated by recording a higher number of
frames the camera sensor captures per
turned, the more images per second
frames and then playing them at a slower
second has to be altered. This is achieved
were shot by the camera, and vice
speed. Unlike NLEs that rely on slowing
by changing the sensor readout clock to
versa. So by manually changing
down a standard piece of video footage
deviate from the standard 24 or 25 fps.
the film speed during recording,
by repeating frames, true slow-motion
a slow-motion or fast motion
In the GY-HM700, this feature is available
generated by over-cranking exhibits less
effect could be achieved when
in 720p only, at frame rates of 24 or 25
motion judder and more image clarity, as
this footage was later shown at the
fps. The files that are being recorded are
it relies on a significantly higher number
digitally labelled as 24p or 25p files but, in
of real images. Here’s how to achieve this
fixed typical film rate of 24 frames
reality, they're being recorded at a different
using the GY-HM700 (in 720p only):
per second (fps). Here's how you
speed. The fastest available speed on n Set the camera for frame rates and
can recreate the effect using the
the GY-HM700 in 24p mode is 60 fps; the
resolution of 720p/24 or 720p/25.
GY-HM700 camcorder.
slowest is 10 fps. Despite being recorded
n
Then, in the recording mode menu,
at these non-standard speeds, all recorded
change recording from ‘Normal’ to
files are digitally-‘labelled’ as having a ‘Variable Frame’ and pick the desired
frame rate of 24p, therefore any editing frame rate.
n
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