I want to play SLR, but I can't use it. Photography is zero-based. Ask the great god to send an introductory tutorial or something. O(∩_∩)O Thank you

Send you an introductory tutorial that is very suitable for beginners. Patiently reading it will be of great help to you ~

DSLR is called digital SLR in English, so is digital SLR camera. Many people only know DC (digital camera), but they don't know-DSLR, an important branch of DC.

In normal times, there will always be people who resist DSLR. These people can be divided into three types: one is people who have never heard of DSLR; One kind is people who have heard of it but have not experienced it personally; One is someone who knows the benefits of DSLR, but thinks it is a "high-end product" that is too professional. This part of people will inevitably look at DSLR with a sour grape mentality, put out a lot of weaknesses of DSLR to convince themselves and others, and try to convince themselves and others that a small camera is better.

In the past, DSLR was indeed a symbol of "professionalism" and "luxury", with a small user base. However, in recent years, with the continuous price reduction of DSLR brands, the entry-level DSLR has already stepped down from the altar, becoming smaller and smaller, becoming more and more popular, and popularization is an inevitable trend.

This paper aims to help people recognize the true face of DSLR, change people's opposite understanding of DSLR's "non-race" in the past, and clarify consumers' worries and worries about this kind of camera.

Not all DSLR are high-end products.

2006 was the year when the DSLR war broke out in an all-round way. In this year, Sony, Samsung and Panasonic entered the DSLR market collectively, while traditional manufacturers such as Olympus, Nikon and Pentax also came up with their latest low-priced products to deal with it, which intensified product competition on the one hand and greatly enriched consumers' choices on the other hand, further reducing the price of entry-level DSLR to freezing point. Although there are tens of thousands of high-end DSLR products, at present, entry-level DSLR sets with lenses below 6000 yuan and single bodies below 5000 yuan abound, and this price is no longer a high-end product.

This price has almost reached the defense line of high-end consumer digital cameras. It can be said that the price difference between DSLR and high-end consumer cameras is not obvious, which will directly shake the choice of some consumers who originally planned to buy consumer cameras. Although DSLR is slightly larger than high-end consumer cameras, the control and imaging quality of DSLR have made a qualitative leap. In addition, different lenses can be replaced as needed, which constitutes the absolute advantage of DSLR. Consumers choose the most consumer-grade cameras, 2000 ~ 3000 yuan. Although its imaging quality is extraordinary, it is different from DSLR.

Five deadly DSLR * * *

1. Excellent imaging quality is the first reason why many consumers favor DSLR.

Because the photoreceptor area of DSLR is much larger than that of consumer cameras, and the pixels per inch are relatively greatly reduced, the performance of DSLR far exceeds that of consumer cameras in terms of latitude, resolution and high sensitivity. The size of the photoreceptor is also the last factor that affects the sales of consumer cameras. Manufacturers often use other indicators such as high pixels to distract users. In fact, the size of the photoreceptor is far more important than the number of pixels. The maximum size of the photoreceptor of consumer cameras is only11.7 inches, while the photoreceptor area of SLR is mostly APS-C (23.7mm× 15.6mm) to full size (36mm×24mm), which is the same as that of 135 negative.

2. The shutter of 2.DSLR is a pure mechanical shutter or an electronically controlled mechanical shutter. The shutter has a very short time lag, and it can be imaged after pressing the shutter, which is a sharp weapon for capturing pictures.

The start-up speed of DSLR is only a few hundred milliseconds, and the continuous shooting speed is also very fast. Consumer cameras, on the other hand, are pure electronic shutters, which has a serious shutter lag problem. This weakness can be called the weakness of consumer cameras, so you can shoot still life, but it is not suitable for capturing moving objects-the image you get is often not the action when you press the shutter.

3. The SLR camera looks bright through the lens, and the picture you see is what you will shoot. Transparent light makes it easier to observe when focusing.

Consumer cameras take pictures through photoreceptors and LCD, so there will be some errors in the observation of brightness and color, which is not easy to detect, and it is even more difficult to see the picture clearly in the dark. Even if there is an optical viewfinder on a consumer camera, its optical path does not pass through the lens, so there is parallax.

The lens of 4.4. The DSLR can be changed according to the shooting theme. The lens of consumer cameras cannot be replaced, and the lens quality is much worse than that of DSLR.

5.DSLR has many manual functions.

DSLR can easily zoom manually and set shooting parameters manually. , and you can take some special shots (such as shooting fireworks with door B). But many consumer cameras are automatic (especially card machines). Most cameras have no manual zoom ring, so they can only zoom automatically by motor. Because the speed of zooming is slow, many shooting opportunities will be lost. Many people think that automation is better than manual operation, which is really a misunderstanding. Cameras with automatic function but no manual function are often low-end cameras, because the accuracy and speed of automation are far less than that of manual operation.

Do you really need DSLR?

If you just use a camera to shoot scenery, "come here for a tour" and record family entertainment, there is really no need to buy a SLR. Although DSLR is good, it is not suitable for everyone because of its price and weight. In addition, even if you have a DSLR, it doesn't mean that you can take good photos from now on. Because DSLR is more powerful, you need to learn more about photography to apply it well. If you use automatic transmission all the year round, the advantages of DSLR will be greatly reduced.

In addition, if you belong to the following situations, then you really need a DSLR.

1. If you have high requirements for image quality, please choose DSLR.

In contrast, consumer cameras will let you down. The simplest example is that the shallow depth of field effect (blurred background) of DSLR is beyond the reach of consumer cameras.

2. If you often take portraits, please choose DSLR.

Although the images taken by consumer cameras are very clear, we must correct the understanding that a good photo is clear and blurred in Jiao Wai, but not all of it.

3. If you have special requirements for snapshots and need faster response, please choose DSLR.

If you use a consumer camera to capture a moving scene, it will be difficult for you to capture the moment you want because of the lag of the shutter, and all you capture is the action you don't need. This result will directly lead you to lose confidence in "snapshot" photography and only shoot still things.

There is another point that friends who want to contact SLR should know.

Introduction to SLR cameras (2)

Three nouns that DSLR novices are most concerned about.

1. Coke section

People often ask how many times the lens of a DSLR camera is. Please note that this is an extremely amateur question. When the digital camera was just born, because the focal length of the lens was pitifully small, in order to distinguish it from the focal length of the traditional 135 lens, we only talked about the zoom multiple and didn't talk about the actual focal length, which would make people forget that the focal length was small and the photosensitive area was small, which was actually a distraction. But DSLR uses the lens of 135 camera, which is usually based on the actual focal length, such as 17-85mm, which means that the zoom range of this lens is17 mm ~ 85 mm. If you insist on asking how many times the lens is, then this lens is 5 times zoom. The reason why this conversion is unscientific is that since the DSLR can replace the lens, if it is replaced with a lens of 70-200, the zoom factor is less than 3 times, but the base starts from 70mm, which is actually farther than the previous lens with 5 times zoom. Even for consumer cameras, the final result brought by optical zoom magnification is related to the starting base, and not all the fields of view with the same magnification are the same, so the magnification of consumer cameras is also a vague concept.

2. Original lens and sub-factory lens

Camera manufacturers such as Canon, Nikon and Pentax, which produce DSLR fuselage, are called original lenses in order to correspond to the lenses produced by their DSLR systems. And some professional lens manufacturers provide lenses with different camera interfaces, so that consumers have more choices, such as lenses with interfaces such as Canon, Nikon and Pentax produced by manufacturers such as sigma, tamron and tokina, commonly known as sub-factory lenses. Of course, it seems inappropriate to refer to these professional lens manufacturers as sub-factories, because many lenses produced by these professional lens manufacturers have the same quality as the original lenses, but the prices are much less than the original lenses, making them the first choice for many photographers who are not well off.

3. The focal length conversion rate

At present, the photoreceptor size of mainstream DSLR is much larger than that of consumer cameras, but it still can't meet the specifications of 135 film (unless it is a full-frame camera). Therefore, the imaging range of the lens with 135 camera will be different from that of 135 camera, and it is usually multiplied by 1.5 times (Nikon product) or 1.5 times. For example, Nikon DSLR is equipped with a 50mm lens, and its viewing angle is equivalent to the viewing angle when the focal length is 50 mm×1.5 = 75 mm. However, the optical characteristics of a certain focal length will not change because of the same viewing angle. Even the "equivalent to ××mm~××mm of 135 camera" declared by consumer cameras in the publicity only means that the viewing angle is equivalent, and the optical effect cannot be "equivalent".

DSLR classification:

In the era of film photography, the levels of SLR cameras are divided into: low-end, entry-level, low-end, intermediate, high-end, quasi-professional and professional.

In the era of digital photography, the classification of SLR cameras tends to be simplified, which may be because the development and manufacturing costs of digital SLR cameras are relatively high. Generally divided into: low-end entry, intermediate, quasi-professional, professional.

For example, Canon's 400D and Nikon's D40X are low-end entry-level machines, Canon's 40D and Nikon's D80 are intermediate machines, Canon's 5D and Nikon's D300 are quasi-professional machines, and Canon's 1DS3 and Nikon's D3 are professional machines.

Introduction course of SLR camera (3)

If you don't play L-head, you won't play Canon SLR.

Playing SLR, is it to choose the brand by looking at the camera? Or look at the fuselage and choose the brand? I believe there are still many people who support the former. Manufacturers with excellent lens resources will inevitably get the support of a considerable number of consumers, which is also an important reason why Canon and Nikon are so popular. For those who choose to join the Canon Sect, a considerable part of them are heading for the "L". Although the "L" head is very expensive, the excellent quality is really irresistible to everyone. It can definitely bring perfect imaging quality and shooting experience to users.

Many friends who have just joined the Canon camp may still be novices. They have never been exposed to SLR before and don't know enough about the lens. Below, I will briefly introduce the naming rules of Canon lens to these friends, so that you can know the parameters and positioning of this lens in the simplest way. Let's take this shot as an example:

EF 28 ~ 300mm f/3.5 ~ 5.6L is USM, and EF stands for the serial name of Canon lens, which can be used for any Canon fuselage with EF bayonet standard, and EF-S is more common. This lens can only be used for Canon digital SLR with APS-C sensor size. 28 ~ 300mm represents the focal length of this lens. F/3.5 ~ 5.6 represents the maximum aperture of the lens at the longest focal length and the shortest focal length. L is the theme of our article today, which is the abbreviation of "Luxury" and the code name of Canon's high-quality professional lens. The "L" head will have an obvious red circle in front of the lens; In addition, this position may also be the word "DO", which means that it uses multilayer diffractive optical elements, and these lenses have obvious green circle marks. Is stands for whether this lens adopts Canon's IS optical image stabilization. The final USM indicates that the autofocus of the lens is driven by an ultrasonic motor.

Every time I see the live broadcast of sports games, those red circles and white cannons on the sidelines can even attract the attention of Canon fans. What is certain is that any friend who has been in contact with Canon for a period of time will definitely have an L plot and will definitely have a fascination and worship for the red circle. In fact, the prefix "L" not only represents a product with excellent performance, but also becomes a symbol of taste and style, which makes friends who hold the body of Canon EOS want to stop.

"L" type pan-tilt covers fixed focus and zoom, wide angle and telephoto, which is very practical. If you have enough money, it is of course the best to equip yourself with an L head, but really not everyone can afford it. However, you must have at least one red circle in your hand, otherwise how can you play Canon?

The cheapest l prefix: ef 17 ~ 40mm f4l USM

At present, the cheapest L-head is EF 17 ~ 40mm F4L USM, which can be said to be the L-head specially designed and manufactured by Canon for digital SLR. The focal length installed on Canon's non-full-frame machine is about 27 ~ 64mm, which is very practical. At present, the price of this 17 ~ 40mm F4L is around 5400 yuan. With excellent quality and portable features, it has become the first choice for most Canon users to start with the L-head.

Ef 17 ~ 40mm F4L USM lens structure consists of nine groups of 12 lenses, including three aspheric lenses, one of which is a glass mold aspheric lens with a diameter of 55mm, which is the largest among all Ef lenses. Moreover, Canon also uses ultra-low dispersion lens and anti-glare advanced coating, which are the basic guarantee of its excellent imaging quality.

Ef 17 ~ 40mm F4L USM weighs 475g, which is relatively light, so it is not a problem to carry around as an ordinary lens. Although the volume of 83.5× 196.8mm is not compact, it still looks very powerful with the hood and the red circle on the lens. EF 17 ~ 40mm F4L USM as the L-prefix also has dustproof and splash-proof performance. The whole lens body is very solid, and the zoom ring and focus ring feel excellent. As far as lenses are concerned, the first-class coating process makes lenses as transparent as diamonds.

Among Canon's wide-angle zoom L-head, except this one, only EF 16 ~ 35mm f2.8L II USM is available. As can be seen from the data, it has a larger aperture of F2.8, which is better than F4 of EF 17 ~ 40mm f4L USM. In fact, as a wide-angle zoom head, it is more used to shoot scenery. F4 is actually enough, and it also has relatively sharp imaging quality. Although the distortion of EF 17 ~ 40mm F4L USM at the wide-angle end is more obvious than that of EF 16 ~ 35mm F2.8L II USM, there is almost no difference after 20mm, and the imaging quality of them is comparable. The most important thing is that the price of EF 17 ~ 40mm F4L USM is only half of the latter, and the cost performance is very high. (The whole journey ends)