The difference between SLR and non-reflex

What's the difference between SLR and no reflection?

1, SLR with different phase focusing uses independent phase focusing module, so the mirror structure should still be retained.

Phase focusing is more reliable and stable, and the speed is also very fast. On the other hand, a mirrorless camera uses contrast focusing, which works much like scanning a scene in a two-dimensional space and focusing on a larger area. Therefore, this method is worse in speed and stability than phase focusing, especially for shooting dynamic and small objects.

2. SLR cameras with different fuselage types are relatively large in size, because they require the camera structure to be more complicated, and it is impossible to further reduce the fuselage size due to the structure of the reflector. The mirrorless camera is relatively light, and the structure of reflector and pentaprism is cancelled, so the body size is greatly reduced and the portability is greatly improved.

3. SLR cameras with different framing methods can choose to use optical viewfinder or LCD screen for framing. The optical viewfinder looks directly through the lens, and the light enters from the lens, passes through the reflector, refracts to the focusing screen above for imaging, and then refracts to the eyepiece.

Because it is directly through the lens, the problem of image deviation is solved, and the effect of "what you see is what you get" is truly achieved. Mirrorless cameras can only use LCD or electronic viewfinder for electronic framing.

The electronic viewfinder is intuitive and can simulate the exposure effect while watching, but the picture will become rough in low light. An important feature of extended data SLR digital camera is that it can replace lenses with different specifications. In terms of the area of photosensitive elements (CCD or CMOS) related to the photographic quality of digital cameras, the area of SLR digital cameras is much larger than that of ordinary digital cameras, which makes the photosensitive area of each pixel of SLR digital cameras much larger than that of ordinary digital cameras.

Therefore, each pixel can show a more detailed brightness and color range, which makes the photographic quality of SLR digital cameras significantly higher than that of ordinary digital cameras. A single mirror needs a certain space, which is also the biggest reason that hinders the miniaturization of SLR cameras.

Therefore, it is the mirrorless camera that hopes to overcome the "big and heavy" shortcoming of SLR cameras by removing the reflector. References:

Baidu encyclopedia-digital SLR camera Baidu encyclopedia-mirrorless camera.

What's the difference between a SLR camera and a mirrorless camera?

Structurally, the integration of non-inverse ratio SLR is higher. The viewfinder, AF module, AE module and CMOS in SLR cameras undertake four functions: framing, focusing, photometry and imaging respectively. Reflectors can make these functions orderly and do not interfere with each other. In a miniature camera, these four functions are all realized by CMOS. Therefore, the body of a mirrorless camera can be smaller and thinner.

From the way of framing: in actual use, the biggest difference between the same reverse and SLR is the way of framing. Mirrorless cameras can only use LCD or electronic viewfinder for electronic framing, while SLR cameras can choose to use optical viewfinder or LCD for framing-in fact, when SLR cameras use LCD for framing, SLR cameras will become a "large, miniature, single camera with redundant components".

Mirrorless camera: A mirrorless camera is also called a half-lens camera without a mirror. As early as the film SLR camera period, Canon and other optical manufacturers used the semi-lens technology to design the SLR, in order to eliminate the negative factors such as viewfinder vibration, delay and long black screen time caused by the up-and-down movement of the traditional SLR mirror at ultra-high speed continuous shooting.

Features: Use the reflector inside the fuselage to separate the light entering through the lens. The light is transmitted to the camera sensor that records the subject, the viewfinder that the photographer looks at, and so on. And a phase difference sensor dedicated to AF (automatic focusing). Because the phase difference sensor can focus on the subject at high speed, the shooting speed of SLR camera is faster than that of ordinary camera, and the desired shooting moment will not be missed.

SLR camera: Digital SLR camera is a single-lens reflex digital camera, abbreviated as SLR (Single-lens reflex). This technology is to install a mirror at a 45 angle in front of the film plane, and there are frosted glass and pentaprism eyepiece above the mirror in turn. The pentaprism reflects the real image light many times to change the optical path, and sends the image to the eyepiece, so that the image seen in the observation window is always consistent with the image on the film, and the observation range is basically consistent with the actual shooting range. The unique design of this prism enables the photographer to directly observe the image passing through the lens from the viewfinder.

Features: First, lenses of different specifications can be interchanged, which is the inherent advantage of SLR cameras and incomparable to ordinary digital cameras. The second is to take pictures through the camera lens. Most of the traditional camera lenses with the same bayonet can also be used in digital SLR cameras. Digital SLR cameras are more expensive than ordinary household digital cameras, and SLR cameras are more suitable for professionals and photographers. The body and lens of most SLR cameras are sold separately.

What's the difference between SLR and no reflection?

The essential difference between SLR and non-reflex is whether there is a mirror-optical framing system of pentaprism system.

According to the definition of Consumer Electronics Association (CEA), the full name of mirrorless camera is "mirrorless interchangeable lens camera", which is similar to SLR camera (DSLR) and belongs to interchangeable lens camera like digital SLR camera.

Under this definition, the classification of single-shot, micro-shot and even some side-shot interchangeable lenses named by various manufacturers in the past has been unified into the category of no inversion.

Digital single-lens reflex camera (DSLR) has the features of power saving, intuition and convenient focusing, which means that the lens image is reflected on the ground glass through the mirror before shooting, and then returned to the photographer's field of vision through the viewfinder through the pentaprism reflection.

Most of the camera's framing methods are that the electronic signals on the sensor are processed by a processor and imaged by a liquid crystal display (LCD) or an electronic viewfinder (EVF) for the photographer to observe. It has the advantages of small size and high speed (depending on the speed of the processor), and will become stronger and stronger with the development of electronic technology.

Although the lens of some paraxial cameras can be replaced, the framing method is through a separate optical imaging system. Because the optical path of the framing part is different from the lens, there is a certain error.

What are the advantages of SLR cameras compared with mirrorless cameras?

1, the SLR camera focuses directly on the original image, which is fast and sharp.

Mirrorless cameras are a bit inferior. But it is not obvious when there is enough light.

2. Considering the market positioning, CMOS imaging sensor chips used in SLR cameras are not small, even from Quan Huafu. Considering the cost, the area of CMOS chip in a mirrorless camera is only lower than that of 1/2 in Quan Huafu.

3. The mirrorless camera has no viewfinder, so it will always bring some inconvenience to use. 4. The LCD screen of the mirrorless camera needs to be turned on at any time, which consumes a lot of power.

But it will basically not affect the use. Although SLR cameras have many advantages, they also have many disadvantages: the disadvantages of SLR cameras are: 1, which is bulky and inconvenient to carry. Because the reflector and pentaprism of SLR camera are essential, the fuselage can't be made smaller.

In order to ensure the firmness, materials can not be saved, which determines that it can not be more ideal in weight and volume. 2, mechanical vibration and noise When the reflector is working, and when the shutter curtain is opened and closed, most SLR cameras are very noisy and cannot be used in some quiet environments.

3. What you see is what you get. Because framing is through the lens, although what you see is what you get, it is also restricted by the lens, and the brightness of the field of vision is greatly affected by the lens. 4. Professional cameras with complicated operation have too many functional parameters to set by themselves.

Although the entry-level SLR has added a lot of fool modes, which has solved the threshold problem of using SLR well, it is obviously a waste for SLR cameras to use only fool modes. 5. A lot of money was invested in the later period. Some friends have macro function when using small digital cameras. They usually shoot flowers and plants, but after using a SLR, they have to buy a macro lens to achieve those.

6, need to pay special attention to cleaning and maintenance, replacing the lens is good, but if you don't pay attention when replacing the lens, there will be dust inside the fuselage, which is likely to fall on the photosensitive element. If you forget to clean it, the photos you take will have a lot of dirty spots. Refer to Baidu Encyclopedia-SLR camera Baidu Encyclopedia-mirrorless camera.

The difference between SLR and non-reversal. Several models recommended by mirrorless cameras.

All performances except power consumption are better than those of the same price SLR.

How much budget do you have?

The biggest difference between SLR and micro-single is the way of framing and focusing.

Let's talk about the framework first

SLR is mainly based on optical viewfinder (ovf), and its framing ability is seriously affected by the price. The framing effect of low-end cameras is very poor.

Micro-cameras with EVF and LCD as the main viewfinder can also have good results on low-end machines that are not so sensitive to price.

OVF only has the advantages of power saving and zero delay.

EVF has too many advantages. The biggest advantage is that you can view and preview in real time, and you can see the results before pressing the shutter.

Whether you take black and white photography or long exposure photography.

Besides, the focusing SLR is mainly phase focusing, and the focusing ability is seriously affected by the price.

Micro-single focusing is mainly based on contrast, and the auxiliary focusing ability of phase focusing is not sensitive to price.

Phase focusing has many inherent defects, such as defocusing of large aperture structure, out of focus, inability to focus at high speed and so on.

Contrast and phase hybrid focusing can make up for this defect perfectly.

In the era of digital photography, micro-sheets are more electronic, but it takes electricity. However, the recent micro-single can be hung with a charging treasure or just replaced with a few more batteries.

I want to buy a camera, I don't know if it's a SLR ... what's the difference between the two! ? -Search

As a photography enthusiast, choosing a SLR camera should be the most suitable for men. Canon 760D+ 18- 105 is recommended.

1 and 760D have good imaging, which can meet the requirements of photographers;

2.760D has good mobility and is more handy to use;

3, 760D lenses are the most abundant, with more choices;

If you are a female photographer, you can consider a smaller micro-single (no reverse) in addition to the SLR. Recommended Fuji XA2+ 16-50

1 and XA2 are very suitable for the body shape and weight of female friends, and will not bring a heavy burden to life;

2, XA2 exquisite workmanship, retro fashion, which is an important factor for female friends to choose a camera;

3.XA2 has less vibration during operation than SLR, which is more conducive to anti-shake;

4.XA2 adopts APS-C level sensor, and the imaging quality is consistent with that of the same level SLR.

What's the difference between a camera and a SLR camera?

When we hear the name "SLR", we always associate it with good imaging quality.

Early products belonging to the field of professional photography, with the maturity of imaging technology, SLR began to enter the homes of ordinary people. When mobile phones and portable digital cameras can't meet the requirements of contemporary users for shooting quality and even creation, SLR cameras become a good choice.

However, while many users are eager to own a SLR, they don't seem to understand what a SLR is and what is better than an ordinary portable digital camera, except for the "professionalism" highlighted by the large size. In recent years, the appearance of mirrorless cameras has puzzled users. What are the meanings of portable digital camera, SLR, no reflex or even single electricity, and what are the differences between them?

This time, let's briefly talk about the technical similarities and differences between ordinary digital cameras and SLR digital cameras, and where the future development trend of cameras will go. What is a SLR? In Taiwan Province Province and Hongkong, SLR cameras are called "monocular" cameras, and the full name of SLR is "single lens reflex camera".

SLR is not a product of the digital age, but existed as early as the film age. With the digitalization of photo carrier, SLR has also entered the digital age. Now we usually refer to digital SLR cameras.

The characteristics of SLR are "single" and "reverse". In fact, in the case that mainstream cameras generally adopt single-lens framing imaging, the concept of "single" is not so important, while "reverse" reflects the essential difference between this camera and other camera products. In the internal structure of SLR, there is a reflector and a pentaprism for reflecting all kinds of light. These mirrors and the pentaprism (or pentaprism) which transmits external light to the viewfinder through physical reflection become the main components of a SLR camera, which is the biggest difference between SLR and other portable digital cameras.

Through specular reflection, people can finally observe the object in the viewfinder of the camera, which is called the optical viewfinder. Whether there is an optical viewfinder or not can also be considered as one of the biggest differences between SLR and other consumer portable digital cameras.

The structure of SLR camera shows that the meaning of the word "single" in SLR is also easy to understand. This has to start with the imaging principle of the camera-most friends who have taken physics classes in junior high school should have a general understanding of the pinhole imaging principle.

Camera imaging is basically similar to pinhole imaging, but the camera structure is more complicated, but the overall framework is the same. The basic principle of pinhole imaging is the same as pinhole imaging. Camera imaging needs an imaging surface. Film camera era is film, and digital era is photosensitive element (or image sensor or image photoreceptor).

The image of the subject is projected onto the photosensitive element, leaving a static picture at last. Close-up of the reflector It is not difficult to see from the schematic diagram that there is a reflector in front of the photosensitive element of the SLR digital camera, so if you want to project the picture onto the photosensitive element (or, more accurately, receive the light signal), you must first lift the reflector-that is, when the reflector is put down, the reflector will reflect the light of the shooting scene to the five prisms above, and finally reach the optical viewfinder and the human eye. At this time, the reflector plays the role of framing. When the reflector is lifted, the light directly reaches the photosensitive element, and the imaging process of the camera can be completed at this time. Although framing and imaging are two systems on the SLR, they are both carried out through a lens, and the camera can only view and image after the light passes through this lens.

So we will use a single lens to complete the process of framing and imaging. A digital camera with a reflector and an optical viewfinder is called a digital SLR camera. A double reflection camera has two lenses. Some friends may ask, since there is a SLR camera, is there a double-reverse camera? There really is.

Before the early SLR became the mainstream, there were many kinds of cameras, such as double reflex and paraxial. For example, the double mirror is equipped with two lenses on the front of the camera, one for framing and the other for imaging; The same is true for paraxial cameras, but paraxial cameras have no mirror structure.

This is why the viewfinder can't see anything when the lens cover of the SLR is covered. Paraxial, even if the main lens is blocked, it does not affect the viewfinder observation, because the light path is different.

Leica M9, a paraxial ranging camera, is of great value, and it is also the street top grade of young artists. The fundamental reason why SLR became the mainstream in the later period is that SLR cameras basically achieved what you see is what you get. Usually, the scene observed by human eyes in the optical viewfinder is the final imaging scene, because framing and imaging are completely completed through one lens. However, due to the difference in the optical path between framing and imaging, the final imaging is often different from what people see in the viewfinder and is gradually eliminated by the times.

At present, the double-reflex camera has completely withdrawn from the historical stage, and the side-axis linkage ranging camera is still produced by some noble brands, such as Leica in Germany. This kind of camera eliminated parallax to some extent in the later stage of reform, and it also has incomparable advantages over SLR.

For example, the focus accuracy is higher, the body is smaller, and there is no action of lifting the mirror when shooting, which will not produce the noise of lifting the mirror and reduce the camera shake. Olympus E-330 is the first SLR camera that supports electronic framing) In 2006, the famous camera brand Olympus released a SLR camera with model E-330, which is an epoch-making camera.

The internal reflector adopts non-traditional rollover structure, and on the other hand, this SLR also supports electronic framing.

What's the difference between a mirrorless camera and a SLR camera? Which is better? Advantages and disadvantages?

On the contrary, it refers to the reflector. SLR is to see the picture in the viewfinder through the lens and reflector, and what you see is what you get. No reflection means no reflector. Generally, micro-single lens or single lens reflection is obtained through electronic viewfinder, which will lead to hysteresis and error.

The full name of 1. SLR is a single-lens reflex camera, which means there is only one lens. Light enters the camera through the lens, enters the pentaprism through the reflector, and enters the human eye through the viewfinder after reflection and refraction. From the principle of this SLR camera, the biggest feature of SLR camera is what you see is what you get. What kind of lens to change will not affect what the viewfinder sees.

2. The non-reflective appearance is similar to paraxial, so it is an out-and-out paraxial, except that the thin film is replaced by an electronic photosensitive element. Most of them have no optical viewfinder, either digital viewfinder or LCD screen on the back. Of course, what you see is what you get.

3. SLR cameras should correspond to the near axis rather than the anti-axis. Paraxial means that light enters the lens directly to the film, while framing is through another window. These two paths are parallel, unlike what you see is what you get, and there is a certain deviation. So if you change the lens, you must change the corresponding viewfinder, otherwise the shot is completely different from what you see. The biggest advantage is that after canceling the reflector and pentaprism, the body is small and easy to carry.

Anyone who has used a SLR knows that it is basically no problem to shoot a battery all day. However, because most mirrorless cameras use live LCD or EVF electronic viewfinder to shoot, as long as they are turned on, they will consume electricity, which will greatly increase the electricity consumption.

5. Traditional SLR cameras can basically shoot when they are turned on. However, most mirrorless cameras still need a "warm-up" process after being turned on, and it will be unable to operate in a short time of several seconds. Of course, there is no difference between still life and general life photos. However, if you need to capture some moments quickly in street shooting, this "shortcoming" of the mirrorless camera is likely to make everyone miss the golden shooting moment.

6. Different storage tanks, which is another shortcoming that everyone has different opinions. In fact, many entry-level to intermediate SLR cameras only have 1 SD card slot. But for products like A7, Quan Huafu engines basically have two memory card slots, but A7 has only one memory card slot to make the body compact.

What's the difference between a mirrorless camera and a SLR camera? Which is better? Advantages and disadvantages?

On the contrary, it refers to the reflector. SLR is to see the picture in the viewfinder through the lens and reflector, and what you see is what you get.

No reflection means no reflector. Generally, micro-single lens or single lens reflection is obtained through electronic viewfinder, which will lead to hysteresis and error. The full name of 1. SLR is a single-lens reflex camera, which means there is only one lens. Light enters the camera through the lens, enters the pentaprism through the reflector, and enters the human eye through the viewfinder after reflection and refraction. From the principle of this SLR camera, the biggest feature of SLR camera is what you see is what you get. What kind of lens to change will not affect what the viewfinder sees.

2. The non-reflective appearance is similar to paraxial, so it is an out-and-out paraxial, except that the thin film is replaced by an electronic photosensitive element. Most of them have no optical viewfinder, either digital viewfinder or LCD screen on the back. Of course, what you see is what you get.

3. SLR cameras should correspond to the near axis rather than the anti-axis. Paraxial means that light enters the lens directly to the film, while framing is through another window. These two paths are parallel, unlike what you see is what you get, and there is a certain deviation. So if you change the lens, you must change the corresponding viewfinder, otherwise the shot is completely different from what you see. The biggest advantage is that after canceling the reflector and pentaprism, the body is small and easy to carry.

Anyone who has used a SLR knows that it is basically no problem to shoot a battery all day. However, because most mirrorless cameras use live LCD or EVF electronic viewfinder to shoot, as long as they are turned on, they will consume electricity, which will greatly increase the electricity consumption.

5. Traditional SLR cameras can basically shoot when they are turned on. However, most mirrorless cameras still need a "warm-up" process after being turned on, and it will be unable to operate in a short time of several seconds.

Of course, there is no difference between still life and general life photos. However, if you need to capture some moments quickly in street shooting, this "shortcoming" of the mirrorless camera is likely to make everyone miss the golden shooting moment.

6. Different storage tanks, which is another shortcoming that everyone has different opinions. In fact, many entry-level to intermediate SLR cameras only have 1 SD card slot. But for products like A7, Quan Huafu engines basically have two memory card slots, but A7 has only one memory card slot to make the body compact.