What should I pay attention to when buying a camera? Summary of precautions for buying a camera
4hw.com.cn: now the popularity of mobile cameras makes more people fall in love with taking pictures, but many mobile cameras and professional cameras are still worse. What parameters do you need to buy a camera? Let's have a look.
What factors should be considered when buying a camera?
It's wonderful to be able to freeze beautiful things in that moment and keep them forever! When we travel, the beautiful scenery along the way, the buildings and the bits and pieces that move us during the journey are worth recording, and it is not enough to record them only with mobile phones. Therefore, most travelers choose to bring cameras or UAVs as recording tools. But then again, because the SLR itself is relatively heavy, especially with a large lens, it seems to become a burden on travel. So how do we choose a suitable camera?
brand
At present, the common digital SLR camera brands in the market are canon, Nikon, Sony and Pentax; Portable card camera brands include canon, Nikon, Sony, Panasonic and Fuji. When we buy cameras, we try to choose from these brands. After all, they are also powerful brands.
pixel
You may have misunderstood the pixels of the camera before, thinking that the higher the pixels, the better the imaging. However, in the photosensitive element of the same size, the larger the pixel, the smaller the area of each pixel, resulting in less received light, thus affecting the imaging effect. Relatively speaking, the pixels of the card machine are 10 to 14 million, which is very suitable. You can pursue high image quality.
Battery
Speaking of batteries, we must pay attention to the standby time of the camera, at least more than two hours. Because when we travel and take photos, we must keep taking photos, and we can't charge for a while. If the battery capacity is not long, it will particularly affect our records, which is very inconvenient.
focal length
The choice of focal length depends on the lens. The length of the lens is equal to the zoom magnification. However, this does not mean that the larger the focal length, the better, because too large zoom magnification will also affect the imaging effect of photos. About the choice of lens, you can read the next article in Xiaobian, which will be introduced in detail!
Camera parameters
Camera parameters include shutter speed, sensitivity (ISO), focusing and continuous shooting speed. The size of the aperture is determined by the lens. The shutter speed determines the exposure parameters of the fuselage. If you grasp the shutter speed, it's no problem to take a vivid picture. The biggest advantage of digital camera over film machine is that the sensitivity can be adjusted, that is, the sensitivity of negative film to light. However, increasing the sensitivity of digital cameras will cause loss of image quality, especially when the area of photosensitive elements is very small, the imaging effect is terrible after increasing the sensitivity. The more points of automatic focus, the better. And the types of focus can be divided into cross type, double cross type, etc. these types of focus sensitivity will be much better than ordinary one-way automatic focus. The faster the continuous shooting speed, the more we can freeze at a certain moment of the dynamic picture, so when we want to take a dynamic picture, remember to set continuous shooting!