Bstock. A ProHD camcorder from JVC with the 1/3-inch bayonet lens mount gives you the flexibility and freedom to choose the right lens for your job. For JVC's launch of the GY-HD100 Fujinon introduced the HTs18x4.2BRM. This lens complements the range of Fujinon's high-definition 1/3-inch lenses, being a veritable all-purpose lens with a strong emphasis on affordability, just like the underlying concept of ProHD. Its focal length of 4.2mm, when combined with an outstanding zoom ratio of 18:1, opens up possibilities for high end production, giving the camera operator an excellent tool for almost every type of shooting. With its f-stop of 1.4 staying constant throughout the entire zoom range, the HTs18x4.2BRM is also the ideal solution for low-light conditions. Features digital servo control system -- DigiPower -- which contains all the latest state-of-the-art lens technology, including features like QuickZoom, OneShot preset, AutoCruise, Zoom Mode Select, Zoom Speed Adjustment, and Zoom Limit.

DigiPower
With broadcasting technology rapidly converting to digital, Fujinon has developed a digital servo control system, DigiPower, to enhance the performance of its zoom lenses. State-of-the-art components including a 32-bit RISC processor in the lens, a CPU in each servo demand, optical encoders and high-speed serial communication devices, together with the newly developed digital control circuit, provide 13-bit accuracy in zoom and focus control as well as a variety of other functions.

An RS232 connector in the lens provides a connection between the lens and a PC, or other control device, for external control. This function has made it possible to control the lens functions with the high degree of accuracy and reliability needed for virtual studio and other robotic applications, and to raise the level for all production environments

Quick Zoom
Quick Zoom speed is improved to 0.7 seconds end to end. Quick Zoom provides for a rapid zoom movement to the telephoto position to check focus with the simple push of a button. Releasing the button returns the lens to the previously selected zoom position. Quick Zoom can now be performed remotely from the ERD-T22 and ERD-10A-D01.

Digital Find System
The Focused Intelligent Network Diagnosis system aids in preventive maintenance and troubleshooting by evaluating various lenses' electronic and mechanical parameters. This data may be stored for future reference in determining the need for service or adjustments.

Focus Breathing Compensation
In most lenses when the focus is operated, the angular field of view changes much like zooming. This is called the zooming effect of focus, or "breathing." Utilizing digital control technology, Fujinon has solved this problem by enabling the angular field of view to remain constant by synchronizing the zoom movement to the focus movement, thus reducing image size change when focusing.