Operation and use of canon 550D

Real-time view introduction and menu display

In terms of real-life performance, Canon 550D has also been greatly improved. If you have used the live view function of 500D or 50D, you will find that the focus speed in this mode is very slow and you will be "hesitant". Canon 550D has made great improvements in this respect. Although there is still a gap with the focusing speed when using optical framing, it has been significantly improved compared with the previous work.

Canon 550D still supports the function of correcting the amount of light around the lens. Although the lens dark angle problem of APS-C camera is much less than that of full-frame camera, when using some lenses, such as 18-200 IS, obvious dark angle can still be seen under large aperture. It should be noted that not every lens of Canon 550D provides the corresponding dark angle correction function, such as the Canon EF 50mm/F 1.4 USM lens used in this shooting.

It can be seen that the menu setting of Canon 550D is very intuitive, but most of the settings can only be completed through the LCD screen, and only a few settings can be completed through the optical viewfinder. In addition, when the LCD screen is closed, the exposure compensation setting interface cannot be opened directly by pressing the exposure compensation key, and it is inconvenient to open the main interface with the DISP key. Fortunately, other commonly used settings can be opened directly through the corresponding shortcut button.

As an upgraded version of 500D, 550D naturally supports HD video shooting and Liveview. 550D Liveview has two working modes, the names on the menu are fast mode and real-time mode respectively (there is also a real-time mode with a big nose icon, which means that the face recognition function is turned on, which is essentially the same). The difference is that when using live view in fast mode, the mirror is raised. The camera cannot focus in real time. When the shutter button is pressed for focusing, the mirror descends and the camera's phase detection focusing module starts focusing. Nothing can be seen on the LCD at the moment of focusing. After focusing, press the shutter completely and you can take pictures. In real-time mode, when the video capture key is pressed, the reflector is lifted and the viewfinder image appears on the LCD screen. When the shutter key is pressed to start focusing, the camera focuses through contrast detection. In real-time mode, the user can specify that any area is focused in full screen. Moreover, when the camera is in focus, the user can see the process from blur to clarity near the focus on the LCD. At this time, you can press the zoom-in key to zoom in the focus area by 5- 10 bai to see the focus. Although real-time, comprehensive promotion of high-definition video testing, compared with invincible rabbit.

EOS 5D MarkII is Canon's first digital SLR camera with high-definition (1080p) video function. Since its launch, it has received numerous favorable comments on how excellent its video function is. Presumably, this also strengthened Canon's determination to popularize HD video function on digital SLR. The video function of 550D is higher than that of 500D, which is comparable to invincible rabbit in terms of parameters and some new functions.

Canon 550D supports the index of high-definition video specification 1080p 30fps, and gets rid of the tailing phenomenon when shooting 1080p(20fps) in 500D. Not only that, the 550D also supports the specifications of 720p 60fps, which will be smoother when shooting moving objects.

In addition, the 550D also enabled the digital rangefinder function that once appeared on Canon DV, which can achieve 7 times the distance at the resolution of 640×480. This digital range expansion is not what we often call digital zoom, but the effect of range expansion is achieved by capturing only the image of a local area on the sensor. Because the video resolution is much lower than the photo resolution, the 550D only uses a small area on the sensor to record the image, thus achieving the digital range expansion effect without losing the image quality.

Powerful 1920× 1080 30fps full HD video.

The recording capacity of Canon 550D is increased from 500D's 1920× 1080 24fps to 1920× 1080 30fps, and the higher frame rate makes full HD recording smoother. Because the image sensor of digital SLR is very large, it is easy to create the effect of blurred background and foreground that only professional DV can achieve.

Canon 550D also supports taking photos during video recording, with the same parameters as video recording, but the resolution can be set according to its own camera pixels. The above is a sample I took when I stopped recording automatically. Because the aperture is automatically reduced to F29 during video recording, there is obvious diffraction phenomenon, and the photographing effect is not ideal, but this can be made up by manual setting. The design of taking pictures during video recording is still very practical, and you won't miss the opportunity to shoot wonderful pictures because of video recording. Support stereo microphone interface

Please note that the stereo microphone interface is supported and there is no stereo microphone. For most people, the existence of this interface doesn't make much sense, and they don't even notice it at all. However, for users who are interested in developing the video function of 550D, or friends who simply shoot video works with 550D, an external stereo microphone is needed.

Support SDXC card

SDXC card is a memory card with further improvement in storage capacity and performance after SDHC card. Its nominal storage limit can reach 2TB, and the instantaneous maximum speed can reach 300 MB/s. Presumably, both SLR users, DC users and even DV users are full of expectations for SDXC. We are not sure whether we can catch up with the popularity of SDXC in the life of Canon 550D, but one thing is certain, SDXC card is really close to us. Therefore, it is definitely a very wise choice for 550D to support SDXC in time.