What's the difference between professional cameras?

Similarities and differences between professional cameras and home DV cameras

Professional cameras can focus, track and move objects more accurately (using professional tripods), and have very high sensitivity to color restoration of objects and color correction in sunny days; Professional cameras have very high requirements for photographers. Generally speaking, the right hand can continuously adjust the tripod rotation button and the camera control button, and the index finger, middle finger and ring finger of the left hand should be able to cooperate with the thumb at the same time when shooting, so as to control the lens focusing, following focusing, zooming and other functions. Professional cameras are heavy and equipped with tripods. General professional photographers will be equipped with assistants to help with tripods, lighting and other equipment.

Household DV cameras have no accurate focusing and good tracking function. Because of its single CCD configuration and low price, coupled with the requirements of ordinary people for portability, the accuracy of household DV equipment will be greatly reduced, which is completely incomparable to professional cameras. The video shot by home DV is different according to the manufacturer's production index, but it is generally red and black, with poor definition, a lot of noise in the dark, and the picture quality is not good; No matter from which aspect, the video shot by home DV machine is not even qualified to enter the TV broadcast review unless it is due to special circumstances as evidence.

In addition, don't believe the nonsense of those merchants and some people who don't know how to do it. In business society, you get what you pay. If hundreds of thousands of professional cameras can easily surpass hundreds of thousands of household dv, then what do Sony and Panasonic do to produce professional cameras?

By definition, DV is a camera.

A camera refers to a device that can shoot programs, and DV refers to a handheld digital camera. But when it comes to cameras, it usually refers to "cameras for professional program shooting". And DV is a "home camera".

The differences between the two cameras mainly include:

1, different picture indicators

The programs shot by professional cameras are used for broadcasting, so the indicators are definitely high. DV is used for family records, so the requirements for indicators are not high.

2. Different parameter control.

Professional camera shooting needs precision, so the parameter control function is powerful. DV is used for video recording, so it has many automatic functions.

DV is the abbreviation of DigitalVideo, which means "digital video" when translated into Chinese. It is a digital video format jointly developed by many famous home appliance giants such as Sony, Panasonic, Shengli, Sharp, Toshiba and Canon. There are also English abbreviations such as spray valve and digital voltage source.

Classification by purpose:

1, broadcast type number:

These models are mainly used in the field of radio and television, with high image quality and good comprehensive performance, but with higher price, larger volume, highest definition, largest signal-to-noise ratio and best image quality. Of course, the price of several hundred thousand yuan is not acceptable to ordinary people. For example, Panasonic's DVCPRO 50M model above 50 m and so on.

2. Professional models:

These models are generally used in professional TV fields other than radio and television, such as audio-visual education, and the picture quality is lower than that of broadcast cameras. However, in recent years, some high-end professional cameras have surpassed the old models of broadcast cameras in many aspects, such as performance indicators, and the prices are generally between tens of thousands and hundreds of thousands of yuan.

Compared with consumer models, professional DV is not only cooler and more eye-catching, but also much higher in configuration, such as using lenses with better quality and performance and larger CCD, which is more prominent in imaging quality and adaptability to the environment.

For friends who pursue image quality, the surprise brought by the improvement of image quality can't be measured by money. Representative models such as Sony's DVCAM series models.

3. Consumer model:

This kind of camera is mainly suitable for home use, and it is used in non-business occasions where image quality is not high, such as home entertainment. This kind of camera is small in size, light in weight, easy to carry, simple to operate and cheap. It can be used to make VCD and DVD for personal families in low-demand occasions, and the price is generally in the order of several thousand yuan to ten thousand yuan.

If we subdivide home digital cameras, they can be roughly divided into the following categories: entry-level DV, mid-range consumer-grade DV and high-end quasi-professional DV products.

Precautions:

1. Image quality is a very important technical index when purchasing. Refers to the resolution of the image taken by the camera, measured by horizontal resolution. The more lines, the clearer the image.

2. Zoom performance represents the flexibility of the camera and is another important indicator. By changing the focal length of the lens, the optical zoom effect is better. Of course, the bigger the multiple, the better. Usually, the magnification of optical zoom is between several times and 20 times. Some models of cameras can also increase the magnification of optical zoom through multipliers.

3. The number of functions is also an important indicator for choosing a camera. In addition to the necessary functions such as clock setting and various operation settings, there are also picture special effects, digital editing, faders, etc., which are almost necessary for all types of cameras.

What is the specific difference between a high-definition camera and a professional camera?

A high-definition camera can provide high-quality high-definition images, and the pictures taken can reach the 720-line progressive scanning mode with the resolution of 1280*720, or the digital camera with the resolution of 1080 line interlaced scanning mode.

Judging from the recording format, there are two mainstream high-definition cameras, one is the earliest HDV and the other is AVCHD. The former mainly uses magnetic tape as the recording medium, the video coding is MPEG-2, and the collected files are in M2T format (or MPEG format). The latter includes CD-ROM, flash memory, hard disk and other recording media. The video coding is H.264, and the recorded file format is M2TS.

Generally speaking, our high-definition cameras can be divided into:

First: HD camera (handheld) for DV personal consumption shooting (usually Sony; Panasonic; Canon; Samsung, etc)

Second: high-definition camera (shoulder-mounted) for professional film and television shooting (Sony is widely used; Panasonic series;

The third monitoring field applies security gun-type high-definition cameras (Sony; Panasonic; Canon; Samsung and other domestic products are: Haikang; Dahua) Special camera for the fourth video communication and video conference room (IVCOO Baifu Evergrande is widely used; Sony; Panasonic; Samsung, etc).

Professional cameras are divided into standard definition and high definition. To put it bluntly, professional cameras are bulky and relatively expensive, and most of them are used by media and film and television institutions.

So professional machines include high-definition machines, and high-definition machines also include professional machines.