What kind of dv works well!

Find out what storage medium you need first, DV!

The mainstream is still tape,

Others include memory cards, DVDs and micro hard disks.

Although the storage of video images by magnetic tape solves the capacity problem, magnetic tape has its inherent shortcomings. First, tapes are not resistant to long-term storage. Secondly, although the magnetic tape can be reused, with the increase of the number of uses, it will inevitably have the shortcomings of quality degradation and damage by external forces.

The biggest problem is that post-processing is time-consuming!

First of all, MPG is lossy compression, no matter what format it is compressed into, it will lose image quality. Secondly, the three compression ratios of 6.0, 7.0 and 8.0 are relatively large, and MPEG compressed into PAL DVD will feel bad. You are in compressed VCD format, so it is normal that the image and sound effects are poor. It is suggested that 1394 is the best acquisition method, and professional acquisition software will have better effect. General home use 1394 card, about 60-70 yuan, the general market to choose Du Pai is not a big problem.

Secondly, for the computer processing video, the quality of the configuration directly affects the video effect. The requirements for computer collection are not very high. Some friends have poor collection results, generally because the motherboard chipset is VIA or SIS. The motherboard disk performance of these chips is not as good as INTEL's, and the motherboard driver needs to be installed to open DMA. If the DMA does not open the disk, the performance will be poor. Generally, the hard disk does not need to be set, but sometimes the DMA of the hard disk is not turned on, so it is necessary to download a setting program from the website of the hard disk manufacturer to adjust it. The graphics card is also the protagonist, so it is recommended to use ATi products.

Furthermore, you must know something about the interface, software and video format!

About interface: There are generally two interfaces for connecting a computer to a DV, one is a serial port or a USB port, and the other is a 1394 port that we often use to collect DV videos. The full name is IEEE 1394, also known as firewire. Sony's name is I. LINK, which is 4-pin small mouth on DV machine and 6-pin big mouth on general computer.

About software: It is very important to choose a nonlinear editing software that really suits you. There are many softwares in the market, including Woori's audio and video, Adobe's PREMEIRE, Pinnacle Studio and Windows' Movie Maker. Generally speaking, Pinnacle Studio has the best collection function, beautiful interface and better image quality than other software. But Pinnacle Studio is a software of Pinnacle, and not all 1394 cards can be used. Generally, audio-visual or pre-burning can be used.

About video formats -AVI and MPEG:AVI format is not as complicated as MPEG format. Its direct advantages are good compatibility, convenient call and good picture quality, so it is often called DVD. But its disadvantage is also obvious: large volume. According to different application requirements, the resolution of AVI can be adjusted at will. The larger the window, the larger the data volume of the file. Reducing the resolution can greatly reduce its size, but the image quality is inevitably damaged.

With the development of DVD disc, flash memory and hard disk storage technology, DV products using non-tape storage media began to appear in the market.

DV specification should appear after the popularity of DVD video. Due to the maturity of DVD recording technology, it is possible to record digital video images in MPEG2-2 format with 8cm DVD disc as the carrier. The advantages of DVD disc are large capacity and good compatibility. After the shooting is completed, users can directly put the DVD disc on the home DVD player to play back the shot image, and its ease of use is obvious. Therefore, the DVD specification DV is basically aimed at home users, but it has not been adopted in professional or broadcast-level DV machines. At present, DVD DV mainly adopts DVD-R or DVD-RAM, and the picture quality can also reach the horizontal resolution of 500 lines of DVD movies sold in the market.

At present, high-capacity and high-speed flash memory has gradually entered digital cameras, and its benefits are obvious. Users can access files conveniently, and after shooting, they can copy the shot video files to the computer for playback and editing, without the complicated video capture operation like tape shooting. But generally speaking, the MPEG4-4 format can reach 720*480 (Samsung MS-2 100).

In fact, most MiniDV and even DVD-DV products on the market have designed digital memory card interfaces, which are mainly used to store still photos taken by DV, and a few models can also be used to record some short films recorded in compressed video format. However, it is difficult to further improve the capacity of flash memory, and high-quality videos often require large-capacity storage media. At present, DV using flash memory as storage medium mostly records the captured images in compressed digital video formats such as MPEG-2 or even MPEG-4, which is naturally inferior to MiniDV lossless video format in quality. The video standard of MPEG2-2 can completely meet the requirements of ordinary users, so DV products with flash memory as storage medium should be able to occupy a certain share in the market in the future. After all, its convenience and good image quality can still attract some users. Panasonic's upcoming SDR-S 100 is a new DV product that completely replaces the traditional storage mode with SD card. With the introduction of high-definition video specifications, there is a greater demand for the capacity of storage media, and hard disks that are good at capacity naturally become another popular storage method in DV. The progress of hard disk technology not only improves the speed of data access while maintaining large capacity, but also reduces the volume of hard disk. In the next few years, the high-capacity and high-speed micro hard disk will surely become the new favorite in the DV field, replacing the dominant position of MiniDV and becoming the standard equipment of the new generation of high-definition digital video format HD DV. Of course, the future development of DV is difficult to predict. Perhaps after the establishment of the new generation DVD format, DV with Blu-ray DVD specification will appear in the market soon.

In fact, if you are not a professional photographer, you can choose Kodak or Samsung's MPEG4-4 camera. 640 * 480,30 30FPS, 5 12M can be used for more than 20 minutes, which can meet the general requirements!

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(A) the purchase experience of domestic violence

1. Check the optical viewfinder and LCD screen. Don't turn on the power first. First, visually check whether they have scratches and bruises, and see if there are many handprints. Many handprints indicate that someone has used them before. Then turn it on and check it again to see if there are any bad spots on the LCD screen, whether the color is saturated and natural, and whether the image is clear.

2. Check the shell of mini DV for hard scratches and paint peeling. If there are these phenomena, it may indicate that someone has used them before or bumped into them during transportation. You'd better find a dealer to change it.

3. Check the optical zoom lens and press the zoom switch several times alternately from T (telephoto, longest focal length) to W (wide angle, shortest focal length). At this time, you should hear a subtle and brisk "cheep ……" continuous mechanical operation sound, and the monitoring picture on the LCD screen should change smoothly from large to small or from small to large. If the sound of mechanical operation is not delayed and the monitoring picture is not jumping and shaking, it means performance.

4. Check the focusing performance of the lens, aim the lens at something nearby, such as a pen on the desk, to see if it can focus quickly and smoothly, and then enlarge the optical zoom to see if it can focus quickly and smoothly. If the smooth focusing of close-range objects is slow and laborious, it is recommended that you do not buy such DV.

5. Check the basic video recording function, put the DV tape into the DV player, start the DV player, fast forward and fast backward to see if it can advance and retreat freely, then record the surrounding environment for a few minutes, then stop and play back the video just taken to see how the playback effect is. If you see the playback image as clear, delicate and bright as the shot image, and the picture is stable, it means that the recording and playback function of this DV is normal. We must pay attention to this. After all, the recording and playback effect is what we care most about!

6. Check the accessories of mini DV, and carefully count the random accessories indicated in the manual, so as not to find something missing when you buy it back, and you have to go back and ask for it, which will bring a lot of inconvenience.

7. Carefully verify whether the product serial number on DV is consistent with the serial number on the packaging box.

8. Buy other accessories

Battery: You need to buy a spare battery. You need to buy two more batteries to increase the shooting time as much as possible. In addition, you must carefully look at the capacity after buying a large-capacity battery.

DV tapes: I need to buy some DV tapes. How many boxes to buy according to your own needs, the price is not expensive. I suggest buying more boxes so as not to run out later and have to buy more.

IEEE 1394 acquisition card: You need to buy an IEEE 1394 acquisition card, otherwise you can't collect it in the computer. You don't need to buy a good one, just a normal one. 150 yuan will do it.

Memory card: The memory card that comes with it is generally only 8MB or 16MB. If you think the capacity is small, you might as well buy a larger memory card, such as 64MB, 128MB.

UV mirror and polarizer: It is best to buy UV mirror and polarizer, which add up to about 300 yuan. UV mirror can usually protect the lens, and polarizer can improve the shooting effect. It can darken the sky, highlight the clouds and "add color" to tourism shooting.

Tripod: If you need to buy a tripod, you should buy a sturdy tripod with a height of about 1.5 meters, because this height is convenient for the photographer not to look up.

Camera bag: You need to buy a camera bag. The principle is that you can put your mini DV, several DV tapes, power cords, spare batteries, UV mirrors and polarizers, and some other accessories. The lining of the camera bag is preferably sponge or flannel, because this can effectively reduce the impact caused by violent shaking, thus avoiding damaging the DV.

(b) Consideration of buying domestic violence

1 On demand.

Before you buy, you should know what the main purpose of the DV you buy is. If the purpose of buying a digital camera is only to record some scenes of home life, it should be more appropriate to choose a camera with a larger LCD screen, because a larger LCD screen can make it easier for novices to get started. Theoretically, the larger the LCD screen, the more convenient it is to use and the higher the price. If it is mainly used when traveling, small size, light weight and low power consumption are the key points when purchasing. If you want to reduce power consumption, it will save electricity to shoot with viewfinder instead of LCD, especially when shooting outdoors, LCD is easily affected by strong light and cannot be watched. At this time, a camera equipped with a viewfinder will be a better choice. More practical is the electronic viewfinder, which is cheaper, saves electricity and can be used in any environment. Although the viewing angle and color effect of the viewfinder are not exactly the same as the final effect, it will soon adapt after a period of use. As a digital product, digital camera has some fashionable flavor, so people generally pay more attention to its modeling. As for color and texture, there is no clear standard, which varies from person to person, as long as you like it.

2 according to the price choice

Know your tolerance before buying, in other words, how much money you can invest in buying DV. The price of digital video cameras is high or low, and some differ by thousands of dollars. You can totally decide according to your financial capacity. Generally speaking, the higher-priced model is usually superior to the lower-priced model in function, performance and appearance, but it doesn't mean that the lower-priced model can't meet your daily use. If you just entertain yourself, there is no need to choose a higher-priced model, because many functions are not what you need and there is no need to spend money. In particular, if you buy a digital camera just to take some photos of family life, I advise you not to follow this fashion trend, but to choose a powerful digital camera as the best policy. Of course, if you are financially strong, it is not bad to buy a high-priced one. Many friends feel that they are buying the best products as soon as they buy them. Often after buying it, the price is greatly reduced, and then it is eliminated. You know, digital products are updated very quickly and become a new generation every few months.

3 Select by function

Generally speaking, the basic functions of DV are almost the same, and some differences are mainly reflected in the operation. Some are more convenient and practical, but there are still differences in their respective characteristics and functions. Choose according to your own needs when purchasing. In terms of language support, some DVs do not support Chinese, while others do. If your English is not very good and you don't pay much attention to appearance and function, you can give priority to the mini DV supporting Chinese, which needs attention, otherwise it will bring you a lot of inconvenience after buying it back! If you have a lot of image data recorded by traditional cameras and want to use the powerful editing function of digital cameras to reprocess these data, you should pay attention to whether there is analog video input when choosing the model. Some digital cameras can also add borders and artistic effects to the still images they take. Before buying, consider whether you really need these features, because these features cost a lot of money.

4 Choose according to word of mouth

When buying, you must go to a regular digital product sales place to buy. After all, mini DV is not a cheap commodity, and several thousand yuan is a lot of money. I accidentally bought a product without warranty (informal channel), and I was dumbfounded in case something went wrong. I bought an MP3 (informal channel) before, and it didn't work well after a long time. The dealer won't give me a warranty, and I want to cry. Now that MP3 player. Fortunately, it's only a few hundred dollars, otherwise I'm going crazy. I hope you can learn from my experience and lessons. The reputation of dealers can not be ignored. It is necessary to find a reputable dealer. Ask them when to renew the warranty and ask them to issue credit cards and invoices. Pay attention to the invoice. If the price is higher, it will be more expensive. If something goes wrong, it's easy to find them. Having a credit card without an invoice is legally invalid.

Take a staff member or a friend with you when shopping.

If you haven't bought DV before, you'd better find a friend who has bought DV before and ask him to give you some advice to help you choose. After all, they have buying experience. If there is no such person around, you'd better find a friend to accompany you, because when choosing, you will often forget to take care of your things because you are too busy, and thieves will take this opportunity to start. Hehe, I've seen it before. You just have to pay for a DV. So I remind you to be more careful.