Posts Tagged ‘Video Quality’

A Beginners Guide to Digital Camcorders

Tuesday, November 11th, 2008
camcorders
Alicia Taylor asked:


Digital camcorders record information in electronic, or digital, form, to a range of digital storage media, including tape, DVD and hard disk.

Key Features

Popular recording formats for digital video, nowadays, include Mini DV tape, Mini DVD and hard disk drive (HDD) storage, akin to that used in computing technology. Mini DV tape is becoming scarcer, but, nevertheless, still provides arguably the highest video quality, and easiest editing. Mini DVD camcorders record to special DVD disks, 8cm in diameter, which are compatible with many, but not all, domestic DVD players. Mini DVD files are more difficult to edit than those recorded to Mini DV. Hard disk drive digital camcorders may allow up to 7 hours, or more, of highest quality video to be recorded, and files can be manipulated, and deleted, in the same way as they are on a computer.

The performance of a camcorder in low levels of light is often what sets a good model apart from a lesser model. This performance is determined by the size, and other characteristics, of an image sensor, known as a CCD (“Charge Coupled Device”), or CMOS (“Complementary Metal Oxide Semiconductor”). The larger the image sensor, the more light that can be admitted, and the brighter and more colourful the resulting image(s). Consumer camcorders normally contain a CCD between 1/6 and 1/3 of an inch in size. The Mustek 8200 model, for example, offers a 3.0 mega pixel CMOS sensor, and a maximum resolution of 8.0 mega pixels.

When it come to actually shooting video footage, a large, integrated LCD (“Liquid Crystal Display”) screen can make it easier to see what you are recording, particularly in situation where using the viewfinder if difficult, or impracticable. An LCD screen can also be used to play back video footage, once it has been recorded. Most LCD screens are around 2.5 inches, measured diagonally, although screens as large as 3.5 inches are available. A larger screen inevitably means a larger camcorder, and probably a higher price tag, too. The Mustek DV535A model, for example, features a 2.4 inch TFT LCD screen.

The size and weight of a digital camcorder determine how easy it is to carry around – and, therefore, possibly, how often you take it with you, and use it – and how easy it is to physically operate. The emphasis on smaller and smaller camcorders means that price may, in fact, be inversely proportionate to size, despite tiny camcorders having fewer features and less accessible controls.

Conclusion

Specifications can be useful in helping to narrow down your choice of digital camcorder to a manageable number, based on your available budget, but there really is no substitute for physically getting your hands on your chosen camcorder. This allows you, for example, to feel the weight of the camcorder, and to check that its controls are large enough for your fingers. Bear in mind, too, that unless you intend to use a tripod, some form of image stabilisation – digital, or better still, optical – will probably be required.



Constance

The Hitachi Dzhs300a Hybrid Camcorder

Wednesday, November 5th, 2008
camcorders
Toni asked:


Making its public appearance at the Consumer Electronics Association in 2007, the DZHS300A Hybrid Camcorder was the first of its kind not only for Hitachi, but for the whole world. The DZHS300A gives to its owner the opportunity of recording video either directly on an internal 8GB hard disk drive or to DVD-R, -RW or +RW discs or DVD-RAM discs. The DZHS300A Hybrid Camcorder have built-in editing tools and a one-touch dub button which allow cleaning up and sending videos from the internal 8 GB HDD to another media. A SD memory card slot makes possible capturing stills as well, from frames of DVD video or when in a photo mode.

With its street price around $400, this is a budget digital camcorder and its video quality shows that. But, the Hitachi DZHS300A Hybrid Camcorder’s recording flexibility, easy use and fast startup time make it an excellent choice for people who like to instantly and effortlessly record and share video and/or to move it quickly to a computer for editing and creating more sophisticated projects.

Considering the components involved, a hard disk drive and DVD recorder, the DZHS300A Hybrid Camcorder is a fairly compact (3.5×2.4×5.3 inches) and reasonably lightweight (about 1 pound) device. It is not quite small enough to stash it inside a coat pocket, but a shoulder strap is included.

The Hitachi DZHS300A comes with a 25x optical zoom lens that smoothly moves in and out without applying much pressure. It has an Electronic Image Stabilizer that eliminates camera shake and there is an option to choose between auto and manual focus.

The controls and menu navigation are simple and intuitive and the 2.7-inch color LCD is just big enough. The “record” button is centered in a small dial located by the user’s thumb. The dial allow to switch between positions for the SD card, Off, hard drive and the DVD recorder.

One of the most outstanding features is the device’s startup time. It goes from off to ready to record to the HDD in about a second. There’s also a Standby setting that lets the user to wake and record even faster. For those who are addicted to capturing life’s more unusual moments to post online, the Hitachi DZHS300A’s startup time is ideal.

From the image quality point of view, one should not forget that this is a a budget camcorder and Hitachi is pitching it for its recording versatility, not its video performance.Those who need a camcorder for more than casual videos, should probably skip the DZHS300A.

This camera gives its best outdoors on sunny and slightly overcast days and indoors under bright light. For low-light situations, the LCD can be used as a light, but only at a short distance. The digital still pictures it captures are at a resolution of 640×480 and are fairly passable, but the still-shot feature is meant as an extra, not to replace a standalone still camera.

The Hitachi DZHS300A’s strong points are the ease of use, the very fast startup time and its hybrid recording. These strong points makes it a perfect device for the novices that just want to pop a disc in and go, but as well, for those that want to do full-on editing and disc creation. Plus, with the handful of built-in editing tools and the one-touch dub from HDD to DVD, one can give family and friends a quick DVD, completely skipping the PC transfer and without the need for docking like other units.



Jackie