Common Sense of Digital Cameras(2)

4. Storage media

The size of digital camera capacity determines how many picture you can take. So if your economic condition permits, you’d better buy a large capacity memory card. At present, most cameras support to use the removable memory card, which brings convenience to the capacity expansion, just like the film. You can replace the full card with a new one and continue shooting. But remember that you should be very careful when removing the memory card. Because if you operate improperly, you may lost the pictures in your card. Once this happens, don’t be too worried, you can refer the article How to Restore Lost Photos from Nikon Cameras to learn more about this.

5. Auto zoom function

The early digital cameras are similar to the low-grade auto focus cameras. Their focusing accuracy is poor, the exposure mode is single and the scope is narrow. Recent years, more and more digital camera using a CCD, TTL auto focus mode, further improve the focusing accuracy and make the picture quality improved greatly. In exposure mode, there are shutter priority automatic exposure, aperture priority automatic exposure and manual exposure mode, consumers can choose according to their own hobbies and photograph skills.

6. Lens quality

Now most of the digital camera uses a built-in zoom lens, and the non-spherical lens is used in the mirror. The aperture gear number increases from 2-3 file to 6 files or so; the lens aperture is also significantly increased. The zoom lens already has a variety of products, and they all greatly increase the flexibility and the imaging quality. Some cameras even with electronic zoom function, which can improve the ultra far shooting ability, especially suit for the wild field scientific persons.

Common Sense of Digital Cameras (1)

Digital cameras are widely used in people’s daily life. This article will introduce some basic knowledge to help you know more about digital cameras and take more professional pictures:

1. Operational Principle.

Digital cameras used the electronic storage device as the video recording carrier, through the optical lens which is under the controlling of aperture and shutter, to realize the exposure on the electronic storage device to complete photographic recording. Images recorded by digital cameras can be very convenient displayed on the LCD screen of the camera, television or personal computer without the complex darkroom working, and also can be copied and export by the printer very quickly. Compared with traditional photography technology, digital camera greatly simplified the image reproduction process, the shot image can be showed quickly and easily.

2. Brands.

At present, there are over hundreds of digital camera brands in the market. And the most common ones are: Kodak, Olympus, Canon, Casio, Sony, Fuji, Nikon(Recover photos from Nikon digital cameras), Minolta etc.

3. Imaging Quality.

Digital camera image quality, in addition to the lens quality factors, largely depends on the pixel level of imaging chip. The more of the pixel points, the higher the pixel level, and the higher the resolution of images, and the photographed picture performance is more exquisite, clearer. The pixel of low end digital cameras are generally lower, only hundreds of thousands of pixels; and the high-end digital camera pixel level is higher, the pixels are mostly more than 2000000. The higher of pixel level and the resolution, the higher of the grade and the price of the cameras, and the better of the image quality will be.

When buying a digital camera, under the allowing of the financial circumstances, you can buy one with better resolution. But do not blindly pursue high resolution, you should base on the capability and uses. Generally speaking, if the shootings are used to display on a computer screen, or in designing of design, then you’d better choose an economical and practical camera with 2000000 pixels; if you want to output the images, and the photos require relatively clear, realistic, then you should choose the  moderate resolution camera (such as 3000000 or more pixels and professional models); the photographer or editors and reporters who have higher demands on the picture quality should choose a high resolution camera (such as more than 5000000 pixels).

Advantages and Disadvantages of Digital Camers?

Digital camera(To Recover Lost Photos from Dogital Cameras) is a product which has integrated optical, mechanical, to itself. And it also integrates the components such as image information conversion, storage and transmission. And it has the features of digital access mode, interactive with computer and shooting at real-time, etc. The first digital camera came out in America. 20 years ago, America used it to send pictures to the ground from via satellite. Later, digital photography was used by common people gradually, also continuing to expand its application scope. Here are some advantages and disadvantages of digital cameras:

Advantages:

1. You can view the picture immediately after shooting. Thus it provides the possibility to shoot again the unsatisfied photos which can reduce the happening of the regret.

2. You only need to pay for the photos you want to print, and delete the bad ones.

3. The color reproduction and color range no longer depend on the quality of the film.

4. The sensitivity is not fixed because of the film. The photoelectric conversion chip can provide sensitivity selections.

Disadvantage:

1. As it transfers through imaging element and image processing chip, image quality lakes of level sense compared to optical camera.

2. As every manufactory has different image processing chip technology, so the photo color is different from the real object.