What good is it to say yes directly?
Compared with mobile phones, it is a big advantage that SLR can replace lenses with different specifications. Then a friend said that some mobile phones also have multiple lenses, but this is not the same as SLR lenses at all. The optical quality of a SLR lens is much better than that of a small camera of a mobile phone, and the choice of focal length and aperture of the SLR lens is much richer than that of two or three lenses of a mobile phone, and the image field of the SLR lens is incomparable to that of a mobile phone. SLR can take advantage of the exaggerated perspective distortion of super wide-angle lens to shoot wide-angle and magnificent video effects. You can shoot super-compressed video with blurred background through telephoto lens; You can also use the zoom lens of the electric zoom adapter to shoot the scene change effect of uniform zoom like a camera. These, mobile phones can't do. Mobile phones can only shoot at a fixed lens angle, and cannot achieve the same image quality as high-optical SLR lenses, especially the edge image quality is not as good as that of cameras.
Because the size of cmos photosensitive original is several times larger than that of mobile phone, SLR camera can easily shoot beautiful shallow depth of field effect, and more importantly, it can shoot purer video effect than mobile phone picture. Because the natural sensitivity of large-size cmos can be better than that of small-size cmos, there is no doubt that SLR completely beats mobile phones, whether it is the picture details at low sensitivity or the picture purity at high sensitivity.
Although the main business of SLR is not shooting video, video parameters are much more professional than mobile phones. What are the parameters? First of all, there are more choices for video resolution. Now SLR cameras have increased the ultra-high-definition video resolution up to 4k, which is backward compatible with 1080 HD and 720 HD, and standard-definition video resolutions of different specifications. However, the video resolution of many mobile phones is as high as 4k, but the usability is very low, because the heat dissipation and storage of the machine can't keep up with the rhythm of 4k at all, which is basically useless. Secondly, the video stream is higher. The quality of video is not only determined by the resolution, but also varies widely even with the same resolution. So what's the difference? One of the main indicators is the code stream, that is, the amount of information contained in the video per unit time. Of course, the higher the bit stream, the better the video quality. The video stream of SLR camera can reach at least 30mbps and above at the resolution of 1080, while the video stream of mobile phone is much lower than that of SLR due to hardware limitations, so the video quality is much lower. Third, the frame rate is richer. Many SLR cameras and mirrorless cameras have a high frame rate shooting mode, that is, the video shot per second contains more single frames. For example, a video with a frame rate of 120fps can achieve a natural and smooth slow-motion video effect when doing slow-motion video, while a video with a frame rate of 25fps will lose continuity when doing slow-motion. Mobile phones are weaker than SLR in frame rate, and some mobile phones do not have high frame rate video shooting mode. Fourth, the color sampling rate is better. Some SLR cameras and mirrorless cameras have a color sampling rate of 4:2:0, but they can be connected to a video recorder to achieve a higher sampling rate. Generally, mobile phones can only use the amateur color sampling rate mode in the camera, which is not conducive to the later video color matching. Fifth, many SLR cameras have built-in log color mode, which can capture a gray high dynamic range video picture effect, and then restore it to various colors through lut color matching later, while mobile phones basically do not have this function.
The interfaces of SLR cameras are quite rich, and some of them can be used to shoot videos. For example, a SLR camera can be connected to a directional microphone for radio reception, and at the same time, headphones can be plugged in for monitoring, so the mobile phone cannot achieve such a function. For another example, a SLR camera can be connected to a video recorder to achieve video shooting with higher resolution, larger code stream and more professional sampling rate, but the mobile phone can't achieve this function at all.
It is very important to control the focus of shooting video. If the focus is always unsuccessful, the focus is always off, or the repeated focus is unstable, it will seriously affect the video effect. SLR cameras, especially the models in recent two years, have greatly improved the focusing performance of video shooting, such as Canon's all-pixel dual-core autofocus system and Sony's 4d hybrid autofocus system, which have made great progress in video focusing and focus tracking, focusing quickly, focusing intelligently and stably, and even shooting moving objects. In addition to the autofocus system, SLR cameras also have manual focusing function. If the photographer is skilled, manual focusing is also a good choice for shooting video. On the other hand, mobile phones can only use autofocus, which is unstable and often prone to the phenomenon of bellows pulling, which affects the shooting effect.
To sum up, although SLR camera is not a professional video shooting tool, it is also a special video creation tool. No matter in hardware configuration, interface compatibility or built-in functions, it is much stronger than mobile phone video shooting. If you want to have a long-term development in video, such as becoming a professional video vlog blogger, you'd better choose a camera to shoot video, but now mirrorless cameras is more optimized than SLR cameras, so it is suggested to consider choosing a non-inverting model. If you just pat casually, there is no need for professionalism. The mobile phone is very portable and the video effect is not bad. Just pat it casually with your mobile phone.
In recent years, I always like to shoot videos with SLR cameras. I have read many articles about how to set up a camera, and everyone has his own story. Today, based on my personal shooting experience in recent years, I will talk to you about how to set the SLR parameters. What parameters should be set?
SLR camera