What does a DSLR camera mean, and what is the difference between it and an ordinary digital camera?

SLR stands for Single Lens Reflex, which is the most popular viewfinder system available today and is used in most 35mm cameras. In this system, the unique design of the mirrors and prisms allows the photographer to observe the image passing through the lens directly from the viewfinder. As a result, the same image that the film is about to "see" can be seen accurately.

At the heart of the system is a movable mirror (shown in light blue) that is positioned at a 45° angle in front of the film plane. The light entering the lens (shown in the red light path) is reflected upwards by the mirror onto a piece of ground glass. Early SLR cameras had to be held waist-flat with a view of the ground glass for framing.

Although the image on the frosted glass is upright, the left and right sides are reversed. To correct this defect, current eye-level SLR cameras have a pentaprism mounted on top of the ground glass. This kind of prism reflects the light several times to change the optical path, and sends the image to the eyepiece, at which point the image is upright and corrected left and right.

When framing, most of the light entering the camera is reflected upwards by the mirror to the pentaprism, and almost all SLR cameras have a shutter directly in front of the film (called a focal plane shutter because it is in the film plane), and the shutter is closed when framing, so that no light reaches the film. When the shutter button is pressed, the mirror quickly flips up to open the light path, and the shutter opens at the same time, so that the light reaches the film and the shot is completed. The mirrors in most cameras then reset immediately.

The full name of SLR is Single Lens Reflection. The viewfinder of a DSLR camera is called a TTL (Through the Lens) viewfinder. It's a must-have framing method on professional cameras, and it's a truly error-free, through-lens optical viewfinder.

This viewfinder has a range of up to 95% of the live shot. The only downside is that if the lens is too small, the viewfinder will be dim, affecting manual focusing. Thankfully, autofocus is now available, so that's no big deal.

Of course, if a TTL SLR viewfinder is used, in order not to make the viewfinder too dark, the manufacturer will use a large-aperture advanced lens. At present, the lenses of SLR cameras are generally larger, which is caused by this factor. The image seen from the viewfinder is through:

Primary reflection (face mirror), secondary total reflection (pentagram mirror). The CCD obtains image information when the visor pops up at the moment of shooting, and then opens the shutter to expose the light.

SLR means that after the light enters the lens, there is a 45-degree mirror that refracts the light to the 5 prisms on it, and you can only see the scene from the viewfinder after the 5 prisms refract. When you're taking a picture, the 45-degree mirror will bounce upwards and flat. At this time, the light-sensitive element behind the 45-degree mirror can directly receive the light.

And record it, of course, the speed at which the 45-degree lens pops up is the same as the shutter speed you set.

It is a digital camera that can change lenses. ，

A digital camera that can change lenses is visible and photographable.

With the improvement of people's living standards, everyone's pursuit is becoming more and more abundant. The DSLR camera is a must-have for young people to travel nowadays, and it helps you leave every moment of beauty. Of course, there are still many people who don't understand what a DSLR camera means, and they don't understand the difference between a SLR camera and an ordinary camera.

Today, I would like to answer these two questions for you.

What does a DSLR camera mean.

A single-lens reflex digital camera refers to a single-lens reflex digital camera, which is the abbreviation DSLR for Digital Digital, Single Single, Lens Lens, and Reflex Reflective. At present, the common DSLR digital camera brands on the market are: Nikon, Canon, Pentax, Fujifilm, etc.

How DSLR cameras work.

In the working system of a DSLR digital camera, the light passes through the lens to the mirror, is refracted to the upper focusing screen and forms an image, through the eyepiece and the pentaprism, we can see the outside scene in the viewing window. In contrast, a digital camera can only see the image through an LCD screen or an electronic viewfinder (EVF). Obviously, images that are seen directly are easier to shoot than images that are seen through processing.

When shooting in DSLR, when the shutter button is pressed, the mirror pops up, and the shutter curtain in front of the sensor (CCD or CMOS) opens at the same time, and the light through the lens is projected onto the original sensor, and then the rear mirror immediately returns to its original shape, and the image can be seen again in the viewing window. This structure of the single-lens reflex camera determines that it is shot completely through the lens focus, it can make the image seen in the viewing window and the film forever the same, and its framing range is basically the same as the actual shooting range, which is very conducive to intuitive framing and composition.

The difference between a DSLR camera and a normal camera.

One: Complex functions and buttons.

You might be startled by the DSLR body and the dials and buttons! What should I do if there are so many buttons that won't work? Actually, don't worry, as long as you point the dial at the auto, the rest will be left to the DSLR.

Two: DSLRs use a viewfinder instead of an LCD screen.

Turn on the power, the LCD screen of the SLR may be pitch black and unresponsive! Is the SLR broken? no！

This is because, when shooting with a DSLR, the framing is usually done with the viewfinder and not with the LCD screen! All you have to do is keep your eyes on the viewfinder and you're good to go! Of course, now more and more DSLRs support framing with LCD screens (just look at ** and you'll know), and the difference in shooting habits can be ignored.

But what I have to say here is that there are many benefits to shooting with a viewfinder. What exactly are the benefits? We'll talk about it separately next time.

Three: SLR zooms through the lens.

You'll find that the DSLR doesn't have a zoom button on the body! Can't a DSLR zoom? Definitely! The zoom of a DSLR is achieved by rotating the focus ring of the lens, rather than pressing the zoom button or toggling the zoom ring like a card player. This is also a significant difference!

For ordinary people, it may be good to have a simple digital camera or even a mobile phone that can take pictures, and they feel that there is no need to spend so much money to buy such an expensive SLR camera, so what is the difference between a SLR and a digital camera?

1. The structure is different. Like the traditional SLR camera, the digital SLR camera solves the problem of aberration, what it sees inside the viewfinder is the image that will be exposed to the film, while the ordinary digital camera adopts the CCD sensitivity mode, what everyone sees on the LCD is the image felt by the CCD, and there is no aberration problem, from this point of view, the ordinary digital camera can also shoot a good macro, so the SLR camera is not dominant.

2. Shutter problems. Ordinary digital camera for ordinary users to shoot a trip to the ** is enough, its shutter speed is particularly important to have higher requirements to adapt to the harsh shooting environment of photographers, in the ordinary digital camera the fastest shutter speed is extremely important to maintain at about 1 1000 seconds, the fastest shutter speed of the SLR digital camera can easily reach about 1 10000 seconds, so that you will not miss all kinds of scenery.

3. The area difference of photosensitive materials. The digital single-lens reflex camera uses the full frame of 2 3 as the photosensitive material, a few high-end products to achieve the full frame, to the area of the CCD used by the ordinary digital camera is several times larger, the general digital SLR point is very small, and the ordinary digital camera point control is much worse, in this point the digital camera is slightly lost.

4. The lens is different. SLR digital cameras not only support many matching lenses, but more importantly, in terms of lens indicators, some ordinary digital cameras cannot reach the height. For example, the shooting effect of the wide-angle end, most ordinary digital cameras stick to the position of 35mm-38mm, and a few high-end models support the lens of 28mm wide angle, while the DSLR digital camera can usually shoot wide-angle scenery with the original lens.

Secondly, it is best not to shake when using a digital camera, as shaking will make ** blurry. Whereas, a DSLR has an external lens to prevent shaking from happening. In addition, the lens part is different from the image quality of the digital and DSLR, and they are also very different in terms of the optical performance of the system.

DSLR lenses can make photography easy and enjoyable.

The above is the difference between SLR and digital camera, I believe you have a certain understanding of this, I hope it can help you.

The differences between DSLR cameras and digital cameras are: different structures, different shutter values, and different lenses.

1. Different structures: SLR cameras and digital cameras use two completely different system structures, and SLR cameras adopt traditional structures, which can see the image on the film from the viewfinder. Digital cameras, on the other hand, use a new CCD sensitivity mode that allows you to see the captured image directly on the LCD, with less aberrations.

2. The shutter value is different: under normal circumstances, the fastest shutter speed of a DSLR camera is about 1 10000 seconds, while that of a digital camera is about 1 1000 seconds. So obviously, we can see that the shutter speed of the SLR camera is much higher than that of the digital camera, and the SLR camera with a faster shutter speed is more suitable for us to shoot in the external environment.

3. Different lenses: The SLR camera can support the switching of a variety of supporting lenses, with a lens index of 35mm and 38mm, which can switch shooting from different angles to the greatest extent. Digital cameras, on the other hand, only support a single lens change, and the shooting angle is narrower, which is more suitable for shooting still landscapes.

The commonality of DSLRs and digital cameras

Whether it's a DSLR or a digital camera, they are able to capture beautiful moments and capture the moments of life. They can all help people record good memories and leave precious **.

Whether it is a DSLR camera or a digital camera, they all have different shooting modes and functions that can be selected according to different scenarios and needs. For example, they all have automatic mode, manual mode, shutter priority mode, aperture priority mode, and so on.

Whether it's a DSLR or a digital camera, they require a certain amount of skill and knowledge to be able to use them well. For example, it is necessary to master the basic knowledge of **, focus, white balance and so on, so as to be able to shoot high-quality ** in Fuchun. Although DSLRs and digital cameras are different types of cameras, they also have a lot of features in common.

DSLRs have several most important advantages over regular DCs:

1: The size of the image sensor is large, so that the imaging area is large, and the image quality is naturally better.

Two: use the eyepiece to frame and focus, because it is an optical viewfinder, so there is no time lag, what you see is what you get, it is very convenient, and the phase focusing method is adopted, the focusing is accurate and fast.

Three: interchangeable lenses, you can choose a more suitable lens according to your needs, and you can use a cheap dog head to meet the general needs, or you can go to the bull head to pursue the ultimate image quality.

As for image quality, the current high-end DC is very close to the entry-level SLR set. High-end DC because the lens material is generally better than the SLR set of lenses, so it will improve some picture quality, but limited to the large size difference of CMOS, the image quality is still slightly weaker than the entry-level SLR set. However, compared with the low-end card machine you have used, the image quality of the high-end DC is still quite large, and the performance of the entry SLR is not much different from the performance of the entry SLR when the glossy situation is better.

However, if you often shoot auto shows, it is still necessary to buy a DSLR, and high-end DC does not have to think about it. After all, the station is generally a long-term continuous shooting, SLR endurance is strong, the focusing speed is fast and the accuracy is accurate, these two advantages are always incomparable to the high-end DC, and once the indoor light is weak, in the case of shooting with high sensitivity, the high-end DC is weaker than the SLR in terms of image quality and focusing accuracy.

If your budget is 3,000 yuan, then only the Nikon D3100 and Canon 1100D sets are more in line with your budget. If you choose one or the other, I recommend you to buy the Nikon D3100. The overall configuration and performance are far superior to the Canon 1100D.

The essential difference between a DSLR and an ordinary digital camera is: the sensor area of the SLR is large, so that the imaging effect is good, the control of the SLR is good, which is conducive to your holding, and the SLR can be matched with many accessories, so that you can use a lot of auxiliary means to enhance the shooting effect!

For shooting auto show beauties and cars, the effect of a DSLR is far better than that of a digital DC, even if you are a high-end DC.

You should go to buy a SLR, now the entry price of the SLR is more than 3000, you can consider it, you can also look at the second-hand SLR, ** is not expensive.

Difference Between Normal Camera and DSLR Camera:

1. The lens of the SLR camera can be replaced according to different shooting requirements, while the lens of ordinary cameras cannot be replaced. There are many lens configurations of SLR cameras, which can be upgraded, while ordinary cameras do not have this function, ordinary cameras cannot be upgraded, and there are relatively few accessories.

2. There is no delay in focusing on the SLR camera, and the capture effect is very good. However, ordinary cameras do not have the function of focusing, and will delay shooting, which sometimes leads to poor capture.

3. The ** processor used in the SLR camera is relatively large, several times larger than the general ordinary camera. SLR cameras have more lenses and better image quality, while ordinary cameras have only one lens and the image quality is average.

4. The DSLR camera can adjust the mode according to the venue and your own needs, while the ordinary camera only has one mode that can be used.

5. The reflex technology of SLR cameras is relatively good, and there are more functions that can be used. And ordinary cameras don't have a lot of features. SLR cameras use mirrors and Wuling lenses, while ordinary cameras use only general plane mirrors.

6. The imaging size of ordinary cameras and SLR cameras is different, and the imaging size of ordinary cameras will be smaller than that of SLR cameras. The pixels of a DSLR camera are much higher than those of an ordinary camera, so the biggest difference between a DSLR camera and an ordinary camera is the pixels and high intensity.

7. There is also a difference in price between SLR cameras and ordinary cameras. An ordinary camera only costs about 1,000 yuan, while a DSLR camera is more than 3,000. DSLR cameras are much more expensive than ordinary cameras.