JVC ProHD GY-HD251 Specifications page 6

GY-HD251
Professional specifications
HDV and DV compatible
As the HDV format uses the same recording track pitch as Professional
DV, the GY-HD251 can record signals in either standard definition
(576i/50) or high definition (720p/50) according to the user's needs.
Real 24p camcorder
The GY-HD251 also offers real HD 24p recording capability —
previously available on only the most expensive HD cameras. Ideal for
DVD production, HD progressive 24-frame-per-second recording
makes it possible to shoot images with film-like quality and smooth
motion. Once recorded, those images can easily be transferred without
frame rate conversion to 16 mm or 35 mm film with full HD fidelity.
ProHD's outstanding image quality is supported by a wide range of
powerful pro-level features including an image inverse function that
cancels image reversal (reversal of top/bottom and left/right) and a
menu selection for the appropriate combination of colour matrix and
film gamma type. Cinema gamma is deployed to make video look like
film, and Film Out gamma is used when the video will ultimately be
transferred to film.
These choices of gamma mean that the cinematographer,
irrespective of whether the final production will be presented as film or
as video, can be sure of always getting the best possible film look.
Cinema Gamma
(for film-like video productions)
IN (%)
5●
Compact ProHD camcorder for Studio and ENG applications
Film Out Gamma
(for subsequent transfer to film)
STANDARD
CINEMA NORMAL
CINEMA MN
IN (%)
Interchangeable HD lenses
The GY-HD251 features a standard professional 1/3" bayonet lens
mount, providing the opportunity to use a variety of other professional
HD lenses. In addition to the standard Th16x Fujinon lens supplied, a
number of other 1/3" bayonet mount zoom lenses is available. Canon
offers a powerful 20x5mm zoom lens and Fujinon similarly an
18x4.2mm, besides a very wide 13x3.5mm lens and two versions of
17x5mm, one ENG and the other studio type.
Furthermore, lens mount adapters ACM-12 and ACM-17 convert
the mount, respectively, to 1/2" and 2/3" bayonet mount, allowing cost
saving by being able to use existing 1/2" and 2/3" lenses.
Also, to enable the use of film camera lenses, specialist film lens
adapters are available.
3-CCD camera system with 720p HD CCDs
The GY-HD251 uses three 1/3" high definition CCD image sensors.
Each array has a pixel resolution of 1280 x 720 and uses a micro lens
system. Since this native resolution matches that of most HDTV
displays, the need for image scaling is eliminated, further enhancing
the quality of the recorded images. Another advantage of using these
CCDs is their sophisticated circuitry which virtually eliminates both lag
and image burn.
Uncompressed 720p/50 live output via HD SDI and
component
For certain broadcast applications, the GY-HD251 can output a live
uncompressed 720p/50 or 1080i/50 signal in the form of either
STANDARD
FILM OUT NORMAL
FILM OUT MN
Fujinon HTs18x4.2BRM Canon KT20x5BKRS