JVC Professional

APRIL 2007

NAB-2007

The ProHD Report

Fig. 17. DVCPRO-HD comes in both 1080i and 720p flavors. Both formats reduce the bandwidth significantly prior to compression. This diagram shows the 1280x720p60 mode, where luminance bandwidth is reduced to 960 pixels horizontally from 1280, and chrominance to 480. Panasonic claims this is 4:2:2 (and it is if you look at the 960/480 relationship) but, if you compare with full bandwidth 1280/640, it computes to 3:1.5:1.5. DVCPRO-HD reduces the 1920x1080 down to 1280x1080 with color sub-sampling at 640, which becomes 2.7:1.3:1.3 referred to 4:2:2 full bandwidth.

The new HD CODECs

The new HD CODEC technologies comprise MPEG-2 and MPEG-4 in intra-frame as well as GOP implementations, and JPEG2000 only in intra-frame.

Fig. 18. JVC’s ProHD Super Encoder technology, built into the GY- HD250U, is the ONLY HD compression scheme available today capable of delivering the full ATSC 1280x720 bandwidth at the full frame rate of 60p in a 20Mbps transport stream. All this in a HD ENG camcorder with a US list price of $9,995. Color sub-sampling is 4:2:0.

Copyright 2007 JVC Professional Products Company All rights reserved

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JVC NAB-2007 manual New HD CODECs

NAB-2007 specifications

The JVC NAB-2007 is a notable entry in the world of professional broadcasting and production equipment, showcased by JVC at the National Association of Broadcasters (NAB) Show in 2007. This camcorder was designed to meet the demanding needs of videographers and broadcasters, emphasizing high-definition video quality and advanced technology.

One of the standout features of the JVC NAB-2007 is its ability to capture high-definition video in various formats. It supports both 720p and 1080i resolutions, allowing users to choose the format that best fits their production needs. This flexibility has made it a popular choice among filmmakers, event videographers, and news organizations looking for quality in their content creation.

The camcorder utilizes JVC’s advanced HD CMOS technology, which enhances image quality by providing better low-light performance and reducing noise. This is coupled with a powerful optical zoom lens that enables users to capture detailed shots from a distance, making it ideal for dynamic shoots where proximity to the subject may be limited.

Another key feature of the JVC NAB-2007 is its ergonomic design, which is crafted for ease of use during extended shooting sessions. The camera is lightweight yet robust, providing operators with comfort and stability. Additionally, the user interface is intuitive, allowing for quick adjustments to settings without disrupting the workflow.

Built-in stabilization features further enhance the usability of the JVC NAB-2007, ensuring that footage remains smooth even during handheld operation. This is particularly advantageous for documentary shoots or on-the-go filming where traditional stabilization rigs may be impractical.

Connectivity options are expansive on the JVC NAB-2007, including HDMI and component outputs, enabling seamless integration with various editing systems and broadcast environments. The camcorder also includes features for live broadcasting, making it versatile for both recorded and real-time production scenarios.

In summary, the JVC NAB-2007 encapsulates a blend of impressive features, cutting-edge technology, and user-centric design, making it a suitable choice for professionals in the broadcasting and film industries seeking reliable and high-quality performance in their equipment.