Panasonic Lumix Camera Review

How do you plump an electronics appliance? You see the brand only or you plump the features also to suit your requirement. Selecting a brand is easy, but how to plump the features, when the meaning of the terminology is not clear. This description will try to address this for Hd-Digital Video Camera.

We will supply you a brief and straightforward guide to buy the above product.

To begin with, we will try to understand the basics of Digital Video Camera, what is it anyway?

The Digital Video Camera has to capture an image and reproduce it in video format. The image captured by the lens is digitized by a gadget kept behind the lens, a Ccd (charge coupled device). A expensed coupled gadget is a light sensitive integrated circuit that stores and displays the data of an image. Data is transmitted in such a way that each pixel (picture element) in the image is converted into an electrical charge, the intensity of which is associated to a color in the spectrum. A Ccd in a camera improves resolution compared with older technologies. So, before buying, check if the camera has Ccd in it.

We have just used a term pixel. What is a pixel?

Pixel is a computer word formed from photograph Element. Pixel is the smallest element of the digital image.

A 3 megapixel camera Ccd has a grid of 2048 x 1536 sensors (3 million). Each sensor samples the color of one of those tiny areas, creating an image of size 2048 x 1536 pixels.

Pixels is valuable to be able to use digital images, because pixels are all that exists in digital images.

Let's go inside a store and ask for a sales brochure on Hd-Digital Video Camera. Got one? What is the goods caption?

"Hd Digital Video Camera with 3.0 inch Tft-Lcd Screen and 30 fps Frame Rate".

First, it is foremost to understand all the terminology of the above caption.

Three terminology in the above caption is to be clarified, these are, Hd, Tft-Lcd and 30pfps Frame Rate.

Hd means high definition. High definition video refers to higher resolutions of 1280x720 pixels or 1920x1080 pixels.

Tft-Lcd refers to the monitor where images are displayed. Nearly all Lcd monitors today use Tft technology. Tft means thin film transistor technology. The benefit of a Tft monitor is a separate, tiny transistor for each pixel on the display. This allows very fast re-drawing of the display, as the image is refreshed any times per second.

The Frame Rate (fps) is the estimate of frames of video displayed during a given duration of time. It is a measure of the rate at which pictures are displayed within petition video. Acceptable video is about 30 fps.

In film, the original frame is 24 fps, but many cameras can be over-cranked or under-cranked to get slow and fast petition effects. If we description at less than 24 fps, then playback will be at a faster rate. The reverse is also true. If we description at more than 24 fps, then playback can be done at slow motion.

We have clarified the meaning of the major terminology. Digital Video Camera are operated by battery as it is intended for capturing images in motion. Most of the cameras use heavy duty Lithium Ion Battery. Lithium Ion batteries have a high energy density. These batteries energy efficiency and charging/discharging efficiency is very high.

This description has described the terminology in a straightforward language, so that the buyer understands the meaning of the terminology used in the sales brochure.

This description is written by Subodh Sarkar Dt. 15th October, 2010.