Digital Video Format and IEEE 1394 (In / Out Terminal)
The Canon GL2 digital video camcorder uses the standard MiniDV cassette, producing the highest quality video possible from non-broadcast equipment. The MiniDV format standard delivers more than 500 lines of horizontal resolution. This is about a 25% improvement in picture quality over the best analog formats. On top of that, because it records both video and audio as digital data, this information can be transferred - without any loss of picture or audio quality - to a computer for editing, then transferred back to DV tape, without a reduction in either picture or audio quality. All of this is through the use of the IEEE 1394 protocol commonly known as FireWire®.
DV Format Technology and Advantages
This format is based on a robust videotape formulation, a sophisticated computer-based data capture system, the ability to allow the high speed transfer of data from camcorder to tape, and a standard data structuring system. The MiniDV format makes professional quality video affordable.
Digital video delivers better picture quality than analog, as well as sharper images and better color reproduction. Digital recordings are almost immune to signal problems, and result in the highest quality picture and audio. This is a major advantage over analog video. Digital is the language of computers, which easily store and transfer data without distortion. It is exactly the same with digital video. Digital copies of digital videos are indistinguishable from the original, which makes editing and image manipulation so much easier and of higher quality than that delivered by analog video technology.
The MiniDV tape formulation is designed to last longer and even withstand repeated use without failure, which virtually eliminates dropouts while delivering higher output and less noise.
Digital video has approximately twice the horizontal resolution of a standard VHS videocassette recorder. The resolution of a DV standard image is about 25% better than that produced by an S-VHS or Hi-8 camcorder or deck. While resolution is dependent on a product's components and circuitry, standard VHS and 8mm video are capable of delivering about 250 lines of horizontal resolution. S-VHS and Hi-8 are rated at about 400-420 lines. The DV format is capable of delivering more than 500 lines of horizontal resolution, with actual performance depending on the individual camcorder model. Another way to look at it is that an NTSC digital video signal contains three times the data of its analog counterpart; a PAL digital video signal contains six times the data of its analog counterpart.
Color resolution (or rendition) can be a problem for analog video, producing color blur and color noise. Digital video does not have this problem, delivering a far more life-like video image on the screen. What you will see is much sharper subject edges and clearer color reproduction.
The MiniDV standard ensures that audio quality matches that of an audio CD or digital audio tape (DAT). The audio portion of the digital video signal is recorded digitally. The digital video standard includes Pulse Code Modulation (PCM) audio recording, delivering more than the normal, natural range of sound audible to humans without both distortion or noise.
All digital video equipment also have the analog video outputs (either S-Video and/or Composite Video) found on current analog equipment. This means you can play a digital video on a regular TV, or transfer a digital video onto an analog VCR. If you record using a digital video camcorder, you can then copy the video onto VHS or Super-VHS tapes, 8mm or Hi-8 tapes, or any of the broadcast formats such as 3/4-inch or Betacam if they have the appropriate input connectors.
IEEE 1394 (DV Terminal)
The GL2 is equipped with a DV In/Out terminal that conforms to the IEEE 1394 standard (also known as FireWire®). A single digital video cable is all that is required to transfer or copy your videos in pure digital form to your DV compatible computer or to another Canon DV camcorder. By transferring images and sound to a computer with the appropriate DV input card you enter the world of video editing and enhancing still images using popular software programs.
Using a digital connecting cable (IEEE 1394), you can dub multiple generations without signal or quality loss. If a digital video signal is being transferred from your camcorder to your computer or back again via the DV In/Out terminal, the signal does not go through any conversion process. Therefore, there is no signal loss.
DV Control -- controls external IEEE 1394 Device through DV Cable -- REC/REC PAUSE
The GL2 can control the Record and Record Pause functions on optional, externally-connected, IEEE 1394 storage/recording devices, via DV Cable. The devices must comply with the IEEE 1394 AV/C protocol.
Great video damera
I've used the GL-2 for several years now. Most of it's use has been shooting video of our church's worship services. Using a firewire cable and VeescopeLive software, I record directly to the hard drive of my MacBook laptop. Our pastors use the resulting DVDs to self-critique their sermons and the overall feel of the service. I also burn extra DVDs for members who might be absent and wish to view a service. They comment, "It's just like being there."
I've found the GL-2 very easy to use and well worth it's cost.
March 5, 2009
I've used the XL-2 to record 3 New York 9/11 Truth meetings and a number of other similar functions; the GL-2 is also very good.
January 12, 2014
I would only buy another Canon
I don't know what is wrong with the people who write a negative report. I have the GL 2 for 5 years now. During that time I dropped it several times on concrete decks and floors. One time, I fell off a cliff on the coast. The GL 2 landed on some boulders 100 feed away; I had to be taken to the hospital ! Another time, I taped an event and then forgot to turn the thing off and put it in the bag. Days later, I wanted to check my work. when I opened the bag, the camcorder was boiling hot; it had recorded the rest of 45 minutes,stoped running but was still on. I figured the thing and the tape was shut. I was besides myself since the recording was part of a 90. birthday party and could not be duplicated. But to my surprize, every thing was fine. the tape was ok and so was the corder. By the way, that was several month ago and I used it since.
So... what I want to say is: even if the GL 2 breaks down now, I would only buy another Canon
December 24, 2011
I have had my GL-2 for over 3 years. I have mostly used it for weddings and travel videos. I have taught prior to retiring, "TV Production classes" in High school. We had 8 GL-2s in the class which we used almost daily. Each school year there was a 30 to 40 percent failure and need to repair. My personal GL-2 was handled with care and not abused. Most failures in the school were probably due to mishandling by the students. I have only had the best quality SD videos. I have 2 BP945 batteries and each last me well over 90 minutes. I found easy setup to computer (using firewire) or television. Capture and editing worked easily with Adobe Premier Pro.
December 11, 2011