JVC ProHD GY-HD251 Specifications page 3

ProHD — JVC's Affordable
HD Solution
1. HDV Full Progressive Scanning (720p)
Leading industry professionals told us that they wanted a full-
frame progressive scanning system that would shoot and
record the highest quality continuous moving images. ProHD
uses the 720/50p progressive HDV format and produces crisp,
native HD images which perfectly match today's digital
displays and which can be converted easily, without
degradation, to interlaced scanning pictures.
2. Time Code
As a professional system, ProHD products include the facility
to record and display timecode. Convenient menu operation
makes it easy to preset time code at the beginning of a tape.
Simply select REC RUN or re-generation mode. User bits are
also available.
3. Highly efficient video compression
To provide the highest quality HD recording, JVC uses the
broadcast industry standard MPEG-2 Main Profile at H-14.
Offering far greater efficiency than frame-bound systems,
ProHD records at data rates at or above commercial broadcast
rates. Recent advancements in non-linear editing have made it
possible to edit ProHD on virtually all popular non-linear
systems. Direct digital transfers via IEEE 1394 ensure the
quality is maintained throughout the transfer process.
4. Dual recording system
Designed to utilise both DV tape and hard disk drives, ProHD
offers the ultimate in media versatility, maximising productivity
with efficient, economical editing and low-cost archiving. Now
you can safely archive the original tape cassette and then plug
the hard disk straight into your NLE. Editing can start right
away — no need to make dubs or to transfer data.
5. Real 24p
With ProHD, the dream of creating HD video with the essence
of film has at last been realised. By capturing and recording at
the film frame rate of 24fps, and offering extensive user
configurable settings such as exposure, gamma and detail,
ProHD becomes an important tool for creative expression. For
the ultimate form of display on the cinema screen, 24 frame
progressive recordings can be transferred easily to 16 mm or
35 mm film.
GY-HD251
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