Full dynamic video course of digital photography.

How to take panoramic photos with a digital camera

Before the emergence of digital imaging technology, there were two ways for people to g

Full dynamic video course of digital photography.

How to take panoramic photos with a digital camera

Before the emergence of digital imaging technology, there were two ways for people to get panoramic photos: using special panorama camera rotation shooting or professional darkroom division to hand-splicing, which were difficult for ordinary photographers. What are the bragging points of APS camera? Panorama? It just takes advantage of the large angle of view of the super wide-angle lens, strictly speaking? Cover a photo? More appropriate. The popularity of digital cameras and digital image processing technology makes panoramic photography easy. Anyone who has a digital camera and a computer that can run image processing software can try to take panoramic photos with amazing angles.

Shooting point

There are certain requirements for panoramic photo stitching, such as similar exposure value, similar tone, sequential arrangement, and slight overlap with each other. There are some precautions when shooting.

1, choice of focal length

Some people think that when taking panoramic photos, the viewing angle should be as large as possible, so the shortest focal length (wide-angle lens or wide-angle end of zoom lens) should be used, so the number of photos spliced is less. In fact, this is a misunderstanding, and it is more troublesome when shooting and splicing. Because the wide-angle lens has a strong perspective effect, especially at the edge of the picture, it is easy to distort and it is difficult to achieve seamless stitching. Therefore, it is necessary to use the medium focus or telephoto end with small deformation when shooting, and it is not appropriate to change the focal length in the middle of shooting.

2. Exposure parameters

At present, many digital cameras have special panoramic modes. In this mode, the camera will automatically set the exposure parameters according to the requirements of taking panoramic photos. For cameras without panoramic function, the following points should be noted: a. Use average metering when metering, lock exposure parameters by manual exposure or AE lock during exposure, and do not change settings such as aperture, speed, ISO and resolution when shooting the same group of panoramic photos; B, use fixed white balance, using automatic white balance may cause different tones of photos.

3. Shooting method

When shooting in a certain order (from left to right or from top to bottom, etc. ), it is best to use a tripod to rotate smoothly. Pay attention to the vertical axis when shooting in rotation. When shooting left and right or panning point by point, pay attention to the same camera height and angle. Generally, do not use flash, which will cause low light and far darkness. There must be an overlap between two adjacent photos when shooting. Some digital cameras of Canon, Casio and other brands have auxiliary prompts on LCD screens in panoramic mode. Avoid shooting when the light conditions change dramatically (such as clouds covering the sun), so as to avoid too much difference in screen exposure. When shooting, you should also pay attention to avoiding moving objects (such as vehicles and pedestrians) at the joints. Although choosing a clearly marked position as the splicing point is conducive to the identification and splicing of some automation software, we still suggest choosing a position that is not clearly marked and easy to mix as the splicing part, such as water surface, distant mountains, etc., so that it is not easy to see the seams when splicing.

?

Nowadays, digital cameras are becoming more and more powerful, and some functions are not even available in professional optical cameras, such as white balance adjustment, enclosed photography, scene mode photography, multi-point area evaluation photometry, multi-point focusing and offset focusing. And the automatic exposure function is becoming more and more powerful and perfect. It seems natural to take good photos with a digital camera, but it is not that easy in fact.

If you want to take more good photos, especially in harsh environmental conditions, it depends on your familiarity and deep understanding of your own photographic equipment, and you need a little basic knowledge of photography and aesthetic literacy. More importantly, you need long-term experience accumulation. It is not easy to get it at your fingertips. I'm still a novice in digital photography. I don't have much experience, but I have encountered many nails. I often get different photos and the results are satisfactory. I can also sum up something after careful memory and experience. Some below? Stupid trick? It may have certain reference value for filmmakers who are still exploring their experience. These stupid tricks are:

Multi-lens selection

More shooting means more practice and more experience from a macro perspective. Specifically, we might as well try more shots to win more, choose the best from many, or carefully re-shoot a scene after exploring the best scheme. This is a stupid trick, but it is really a trick to give full play to the advantages of digital cameras. Optical photographers have no laws. You see, optical cameras shoot with film, so you can't know whether you are satisfied or not on the spot. We won't know until we develop it. Winning with more is bound to waste a lot of film, the cost is too high, and optical photographers often cherish it. Mirror? For example, if you don't press the shutter easily, you won't know the result until you carefully grab the lens and take a photo. It is difficult to be dissatisfied, and it is too late to remedy it. Therefore, old friends often lament that optical photography is an art full of regrets.

Digital photography is different. The image is now stored on the magnetic carrier of the machine, and can now be played back and observed. If you are not satisfied, get rid of them and start over. This is a great advantage of digital photography. So now I usually set a topic first and select several scenes around the topic. First, each scene revolves around it several times, and the shooting scheme under different angles and different lighting conditions (backlight, shun-light, photometry, fill-light, etc.) is drawn up. ), and then I did not hesitate to shoot. Sometimes I shoot the same project from the same angle several times and then stop to play it back. Unsatisfied scenes are deleted on the spot, often ten to seven or eight. Then shoot a scene and brew it until a special topic is completed. Generally speaking, two or three hundred or even four or five hundred shots were taken, leaving only seventy or eighty figures. After you come back, save it on the hard disk, then use ACDSee to enlarge and play it back, and delete a part. Then use the editing function of ACDSee to play back and do preliminary image processing. Generally speaking, one is to correct the deviation, the other is to delete and improve the composition when necessary, and the third is to use? Automatic level? Functional correction makes up for the deficiency of individual photo exposure. After this process, the photo can be considered as a preliminary finished product, and then it can be taken back to ACDSee for amplification and playback. If it is too mediocre, you can delete it again, so that there are only twenty or thirty or even a dozen photos left in each topic.