What are the advantages of SLR cameras over ordinary cameras?

SLR digital cameras are completely different from ordinary consumer digital cameras that we contact more. The difference here is mainly reflected in the internal structure of the two systems. Like the traditional SLR camera, it adopts a special structure. Digital SLR camera fundamentally solves the problem of aberration, that is, what you see from the inside of the viewfinder is the image that will be exposed on the film. Because ordinary digital cameras use CCD photosensitive mode, what everyone sees on the LCD is the image that CCD feels, that is to say, what photographers see on the LCD is the image that everyone can shoot, and there is no aberration problem, so ordinary digital cameras can also shoot good macro! So from this perspective, SLR cameras are not dominant.

2. Shutter problem

Ordinary digital cameras are enough for ordinary users to take photos of this trip, but its shutter speed is extremely important for photographers who have high requirements for adapting to harsh shooting environments. In ordinary digital cameras, it is extremely important to maintain the fastest shutter speed at around11000 seconds, while the fastest shutter speed of SLR digital cameras can easily reach11000 seconds.

3. Different shots

When it comes to SLR digital cameras, many people will relish that it has a variety of lenses to support. Some people think that the biggest difference between SLR digital cameras and ordinary digital cameras is that one lens can be replaced and the other cannot. At first glance, it seems reasonable, but when you think about it, it's not. For example, Olympus E20P is a SLR digital camera, and the lenses are not interchangeable. Of course, most SLR digital cameras on the market are supported by supporting the lens group. In shooting activities, we can change different special effects lenses, and we can see different special effects through the viewfinder, and finally choose the appropriate lens Shoot. SLR digital camera not only supports many supporting lenses, but also has a height that ordinary digital cameras can't reach.

First of all, for example, the shooting effect of wide-angle end, most ordinary digital cameras insist on the position of 35mm~38mm, and a few high-end models support 28mm wide-angle lens. SLR digital cameras can usually take satisfactory wide-angle scenery photos with the original lens, and even can continue to expand the visual range with a special wide-angle lens.

Secondly, digital cameras are very sensitive to jitter, and even a slight jitter will produce blurred photos during exposure. Ordinary digital cameras do not have the practical function of image stabilizer if they are not high-power zoom lens models, while SLR digital cameras can be equipped with extra lenses to prevent camera instability and jitter when shooting.

In addition, the lens part is also closely related to the imaging quality. Comparing the lenses of most ordinary digital cameras and SLR digital cameras, we can see that the lenses of ordinary digital cameras are very small, which is out of proportion to the aperture of the lens barrel. The lens of some models is only about 1/3 of the aperture of the lens barrel, while the lens of SLR digital camera is basically equivalent to the aperture of the lens barrel, which also causes great differences in optical performance between the two systems. In short, one more lens choice will give you more protection when shooting, and a good lens can make the shooting work easy to complete.

4. Area difference of photosensitive materials

Most digital SLR cameras use 2/3 of Quan Huafu as the photosensitive material, and a few high-end products have achieved Quan Huafu (that is, the same size as 35 mm film), which is often several times larger than the ccd area used by ordinary digital cameras. Therefore, digital SLR generally has a very small manic point, while the manic point control of ordinary digital cameras is much worse. For example, 800w Canon 20D and 800w sonyf828, the gap is too big to compare!