JVC GY-HM790U manual Advanced MPEG2 High Bit Rate Encoding

Canon 14x HD Lens

The JVC GY-HM790U comes equipped with a 14x interchangeable HD lens from Canon. With a focal length down to 4.4 mm (equivalent to 31.7 mm on a 35 mm camera), the new lens is 20% wider than previous models, and at the

telephoto end (up to 447 mm at 35 mm equivalent) it is less susceptible to color flaring. Focus accuracy is maintained throughout the zoom range, and the same image brightness is sustained without reducing the F-stop.

Advanced MPEG2 High Bit Rate Encoding

1080p Dynamic Digital Signal Processor (DDSP)

At the heart of the GY-HM790U is the new Dynamic Digital Signal Processor. Processing is performed on the full progressive 1920 x 1080 signal, regardless of the camcorder's

settings, ensuring the highest picture quality in any shooting mode. All major HD resolutions are supported, including

1920 x 1080, 1440 x 1080 and 1280 x 720.

JVC Proprietary 35Mbps MPEG2 Encoder (HD)	35
Drawing from its experience in developing transmission
signal encoders used by major television stations, JVC
developed a proprietary codec capable of providing	Mbps
highly efficient compression up to 35 Mbps — high

enough to support full 1920 x 1080 encoding — capable of creating high resolution images with minimal artifacting. The XDCAM EX™ MPEG2 long GOP (Group of Pictures) codec is a widely used, broadcast-standard compression system and is supported by all popular editing systems and broadcast servers.

The GY-HM790U supports all major HD signal formats including 1920 x 1080, 1440 x 1080 and 1280 x 720.

Standard Definition Recording Capability	HD/SD
GY-HM790U, in addition to its capability as an HD
Responding to the needs of the industry, the
recorder, offers Standard Definition recording for	Rec
maximum flexibility. Recording in SD provides

a time-saving alternative to down-conversion of HD material for SD

broadcasts, which is still an industry standard in many countries worldwide. This feature offers a fundamental advantage for professionals with time-sensitive SD workflows.

	HQ made	SP made	SP made	DV made
	(35Mbps)	(25Mbps)	(19Mbps)	(25Mbps)
1920 x 1080	60i/50i
	30p/25p/24p
1440 x 1080	60i/50i	60i/50i
	(MOV only)
1280 x 720	60p/50p		60p/50p
	30p/25p/24p		30p/25p/24p
720 x 480				60i

*The GY-HM790U supports all major HD signal formats including 1920 x 1080, 1440 x 1080 and 1280 x 720 as well as SD signal in DV codec.

Uncompressed Audio Recording with Full	linear
Manual Control
	PCM
The GY-HM790U captures audio with the same
uncompromising quality as video. Two-channel	Recording
16-bit/48 kHz uncompressed linear PCM can be

recorded via the detachable shotgun microphone, or via a pair of balanced XLR connectors. Versatile input switching and independent channel assignment allow both mic and line-level sources (such as wireless receivers) to be connected, and phantom power is available on each XLR connector independently. Audio recording levels can be controlled automatically or manually, with an audio level meter in the viewfinder and

LCD monitor for easy monitoring.

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