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AJ-HDC27 VariCam - Call
for Package Price
New version
features 12-bit digital processing and higher sensitivity CCDs.
The AJ-HDC27 VariCam HD Cinema Camera brings variable frame rate
acquisition to the DVCPRO HD product line up. This is the first
high definition production camera that is capable of variable
frame rate at the touch of a button. Individual frame rates may
be selected from: 4-fps to 60-fps in single frame increments.
Frame rates may be changed during recording. Designed as a high
quality production camera, this native 720p camcorder can be
used for 60-fps or the film-like 24-fps acquisition. When acquiring
for 24-fps projects, higher than 24-fps operation can be processed
for slow motion effects while slower than 24-fps operation can
be processed to speed up motion. Additionally, the variable frame
rates and related variable shutter speeds create some very interesting
ghost like motion blur effects, warp speed zoom effects, and
long exposure still shots typical of what one might see in music
videos, sci-fi dramas and dream sequences.
The camera has the capability to emulate film's gradual transfer
function performance (i.e. CineGammaTM). This function greatly
increases the camera's usable dynamic range, especially in traditionally
limiting areas such as highlight handling, which until now was
a serious limitation for most HD cameras. CineGamma provides
the user with a much closer approximation of film's renowned
ability to maintain smooth image tonality even when gently compressing
extreme highlights. Cinematographers are able through the CineGamma
feature to control the camera's gamma transfer function to best
optimize control over tonality, from extreme highlights to the
lowest of shadow areas.
The AJ-HDC27 VariCam serves a triple role: 1.) as a 24-fps camera,
2.) as a standard 60-fps video camera, and 3.) as a variable
frame rate special effects camera.
It is important to understand that only the camera section operates
at variable frame rates. The VTR and the camera HD-SDI output
operate at a constant 60-fps rate. If you set the camera for
60-fps with no shutter, the exposure time is 1/60th of a second
and each camera frame is recorded once on tape. As soon as the
frame rate becomes lower than 60, exposure time increases proportionally
and redundant frames are recorded on tape. For example, if the
camera operates at 30-fps, each new frame is recorded twice to
ensure 60-fps on tape. 24-fps is a non-evenly-divisible frame
rate and requires the classic 3:2 type pulldown frame sequence
with one frame recorded three times and the next two times. As
you see, this technique generates redundant frames used to pad
the data to maintain a constant 60-fps on tape including both
new frames and redundant (repeated) frames.
By keeping the VTR frame rate at 60-fps no new DVCPRO HD studio
VTRs or specialized video monitors are necessary. By recording
standard 720p60, tape can be run through a standard linear tape
based post production chain, yet still deliver "film look"
video. If a linear 24-fps post production process is required,
material can be converted to D-5 HD 1080p 24-fps by the Panasonic
AJ-UFC1800 or other 3rd party products. This process works by
removing redundant frames. Various NLE systems now support editing
with variable frame rates acquired with the AJ-HDC27.
· Colorimetry - Standard color is compliant with SMPTE
standards. To achieve a desired "look", an advanced
color correction scheme utilizes a 12-pole color matrix that
allows very specific colors to be set, especially when critical
color matching is vital.
· New Digital Signal Processing (DSP) - Offers a higher
standard of precision color, detail and gamma processing to ensure
optimum picture quality.
· Assignable Scene Files - An externally accessible switch
allows for easy access to any of three user-designed set-ups,
each with programmable color, detail, gain and gamma. (Most commonly
these switches are used for gain sets, leaving other presets
in place.) [ L/M/H ]
· Scene Files, Internal Memory - A selection of four separate
camera set-ups -- plus one user standard-reference file -- are
available through user menu access. These set-ups are stored
in camera memory and updated as needed.
· Scene Files, Card Storage - Camera set-ups can also
be saved on a removable SD or Multi-Media Memory Card, allowing
quick memory access to user-designed camera settings to achieve
a particular look for given scenes. Also useful for matching
multiple cameras with the same "look". Up to eight
scenes are saved on this card.
· Simple Cinematic Settings - Provides for superior versatility
in a single camera system when the Film User Menu is chosen.
· User 1 / User 2 - Two externally accessible, user-assignable
switches provide direct access (on or off) any one of six operational
functions, including Super Gain, Super Black, Black Stretch,
Super Iris, and Audio 1 & 2 (for viewfinder display) plus
pre-selected frame rates.
· Wide Lens Selection - Offers the ability to capture
superb images with a wide selection of lenses including todays
newest HD technology lenses and a large variety of existing prime
lenses.
· White Balance Selection - Select between two programmable
automatic white balance conditions (as set by the user) and one
preset that can be set for either 3200° or 4300° Kelvin.
This feature comes in very handy when moving quickly between
dissimilar ambient lighting conditions. [ Preset/A/B ]
· Wide Range Gain - When shooting in wide-ranging light-level
conditions, a programmable gain switch can be set to optimize
signal levels -- choose from -6 dB to +30 dB in thirteen steps.
· Low Power Consumption - A moderate 33 Watts power consumption
(39 Watts typical) means a good battery life can be realized.
Expect about 1.5 hours from a HyTron 100 battery. The camera
runs cool and does not employ a fan, assuring quiet operation.
· 33 Minutes Record Time - Employing the large DVCPRO
Cassette, a recording time of 33 with 18 micron recording format.
· Three 1.1-Million Pixel CCDs - True to high-definition
standards, these extraordinary 1280 x 720 CCDs are the key ingredient
in creating rich images.
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