What should novice photographers pay attention to when choosing SLR lenses? What should novice photographers pay attention to when choosing SLR lenses?

With the price reduction of digital SLR, many friends want to buy digital SLR, but many people don't know how to choose the lens. Here are some questions that new photographers should pay attention to when choosing SLR lenses.

Buy a digital SLR, whether it's Canon, Nikon, Sony or Pentax, it's all the same. Manufacturers have thoroughly analyzed the market for a long time, so you will always find shortcomings and advantages in the products of different manufacturers. When it is difficult to choose, it is recommended to refer to the following three criteria when choosing the fuselage:

1, shape, feel. Machines that don't like the appearance and feel bad are uncomfortable to use, so I won't consider them for the time being.

2. Pixels. At present, the mainstream is a 10-megapixel SLR, so Canon's 400D, Nikon's D200/D80/D40X, Sony's A 100 and Pentax's K 10D are the main models.

3. price. This is very simple. How much do you need? 100000 megapixel machines are mostly between 5K and 7K, and only Nikon's D200 is around1w.. It's not wrong to make a budget before you buy something.

4. Don't pay too much attention to the dust removal function on the current fuselage. The effect of this new function is far from as good as advertised. There is no need to care too much about this now. The vibration release function of the fuselage is still very practical.

Just like an ordinary amateur, buying a SLR is just for fun, entertainment and flowers. The total investment may be 1-3W. What is the possibility of buying such a professional lens and fuselage? Of course, it does not rule out that rich players buy a lot of bulls in one breath, which is beyond the scope of this article. Money makes the mare go, so don't worry about matching lenses.

In fact, whether Canon or Nikon has a dog's head, a good head and a cow's head, just like Sichuan cuisine, Hunan cuisine and Cantonese cuisine, there are some bad things and some I like very much, but I prefer hot pot. Hehe, I thought about playing Canon for a while after I chose Nikon, but later I found that people who play Canon also want to play Nikon, so I realized that using the equipment in my hand is the key, or buying more equipment will be like that. No photographic work can win an award by relying entirely on top-notch equipment. The equipment is just a tool, so don't pursue it excessively and be superstitious. Cut the crap and get to the point.

I. Classification of lenses

1, according to the brand

Lenses are generally distinguished by brand, such as Nikon lens, Canon lens, Pentax lens and Sony lens. Please note that these brands of lenses are not directly interchangeable. If you choose Nikon's SLR, it will be more difficult to use Canon's lens because their bayonet design is different. Although the fun of SLR lies in changing lenses, we often find that there are very few lenses that can be changed. Hehe, this is determined by interests and cannot be changed in the short term.

Brand differentiation has a special lens group.

Once we buy a lens of a certain brand, such as Nikon, we usually choose the lens produced by Nikon itself, which is the so-called original lens. For the body of Nikon, we can also choose the lens produced by third-party companies such as Sigma, Longteng and Tuli. We call lenses produced by manufacturers other than Nikon's original factory secondary lenses. Similarly, Canon and Pentax can not only use their own lenses, but also choose the matching lenses produced by Sigma, Longteng and Tuli.

However, because most users who buy SLR only buy one camera, they may buy several lenses, and the profits of manufacturers are more reflected in lenses and related accessories, so manufacturers like Nikon and Canon, which can produce both cameras and lenses, can't wait for people all over the world to buy their own cameras and lenses. Therefore, it is difficult for sub-factories to get technical support from Nikon and Canon, so some products they design and produce often have some problems in compatibility. Coupled with manufacturing experience, quality control and other reasons, individual differences will be relatively large, that is to say, you may be lucky enough to buy a lens without problems, or you may be lucky enough to buy a lens without problems, or even change several lenses continuously.

But overall, the lens quality of the vice factory has improved a lot. Apart from a few phenomena, there are many classic and excellent lenses worth buying. I will write the recommendation of the vice factory lens at the back.

2, according to the focus of segmentation points

In fact, the traditional 135 lens is generally divided according to the focal length. The more traditional approximate division is:

10- 17mm is an ultra-wide angle-it is mainly used to shoot landscapes, especially large scenes, such as grasslands, deserts and the sea.

17-35mm wide angle-scenery, culture, the main focus of this kind of travel photos, especially suitable for travel shooting.

35- 135mm medium coke-humanities, portrait. The focal length of 85mm is especially considered as the best focal length for portrait shooting, so we can often see that the lens with 85mmF 1.8 is called portrait head.

50 mm-this focal length is said to be the most suitable for people to see, so it has become the standard focal length. This is the title of the 50mm lens that we often say. But recently I read an article saying that 42mm is the real standard focal length. Well, I don't care so much. Since tradition calls it that, let's call it that first.

135-200mm- telephoto, suitable for close-up of people, taking some lotus flowers, stage and the like.

135mm is considered as telephoto. Generally, it's only 200mm, but some people like to shoot wild animals and birds with a focal length of 300, 400 or even 600 mm ... But the first batch is tens of thousands, which is beyond the average person's affordability. I haven't played with them, so I won't say it.

Macro is a macro lens specially used to shoot small things such as insects and flowers. This focal length is special, but the kind is very simple. Nikon usually has two macro lenses, 60mm and 105mm, which will be discussed in detail later.

I'm mainly talking about 10-200MM, which is the most common, commonly used and possibly the most troublesome lens choice. However, I want to emphasize one point in particular:

The focal length mentioned above is the focal length of a traditional 135 camera. In fact, in the digital age, these focal lengths are often converted, and the focal length multiplied by a coefficient is the real actual focal length. For example, Nikon's current SLR body coefficient is 1.5, and Canon's different models are different, and D400 is 1.6. It is worth mentioning that the coefficients of Canon's 5D and Bunny's 1DsMARKII are both 1 in Quan Huafu. So a Nikon's 85MMF 1.4D lens, on a Nikon digital camera similar to D80, actually has a focal length of 85x 1.5 or 128MM, and so on.

The existence of this coefficient has caused a great trouble, that is, the wide-angle focal length of 17-35MM on the traditional Nikon 135 camera has actually become a strange focal length of 2653MM on Nikon's digital SLR, and the wide-angle is almost gone. This is why some people will buy 12-24MM ultra-wide angle for digital SLR. (12-24 multiplied by the coefficient is just a very traditional standard 18-36MM wide-angle focal length). This is one of the reasons why some people admire full-frame cameras like Canon 5D.

3. Other points of the lens:

Fixed focus and zoom should be easy to understand. Fixed focus means that the focal length is constant. For example, Nikon's 105mm macro lens is 105mm fixed focus. Zooming means that the focal length can be adjusted. For example, Nikon's 17-35MMF2.8D lens can freely change the focal length between 17 and 35MM.

Dog head and cow head are called by photographers. Manufacturers are mostly economical and practical ordinary heads and professional heads with excellent imaging. Actually, there's nothing to say about this. After all, if manufacturers want to make money, it is impossible to have a good and cheap image. However, both Nikon and Canon have a good image and low price, that is, 50MMF 1.8. It is recognized that the heads of these two manufacturers are definitely worth buying.

After understanding the general classification of lenses and choosing your favorite body, please think about these issues before buying lenses. Of course, rich friends can completely ignore the following questions.

1. What is your maximum budget? Don't read a few articles, just read a few poison stickers and raise the budget at will. Friends who have just started SLR had better start from practicality, otherwise buying a bull's head may not be able to exert its power and accumulate funds.

2. What do you shoot the most every day? Referring to what I wrote earlier, if you like taking portraits, choose a lens with a focal length of 35- 135. If you like to shoot scenery and travel, you should choose a wide angle with a focal length of 17-35. If you like to shoot lotus flowers and birds, you can consider a 200mm focal lens.

3. Is the imaging requirement high? This is a big problem. How to make a good image? There are many standards, and the related war of words has been played since the camera was produced. To put it simply: clear imaging, pure color, sharp focus, soft Jiao Wai and good level of detail. I think it's good to analyze this from the purpose of taking pictures. For example, just taking pictures for fun, the general lens is enough. If you want to engage in photography, advertising and shooting a bull's head, it is still necessary.

4. Will it be upgraded in half a year in the short term? Once in the pit of SLR, no one can live forever. Nikon is called a mud pit for a reason. I really haven't met anyone who bought a SLR body and didn't want to change or upgrade the lens. Therefore, when buying a lens, you may wish to consider whether you have the need to upgrade and consider the preservation of the lens.

Supplement: The characteristic of SLR lens is that it is more valuable, at least much more valuable than card cameras and mobile phones. Generally speaking, lenses with good quality, licensed products and warranty are used at about 90% of the original price. For example, you spend 7500 yuan to buy a Nikon 85mmF 1.4D, which looks like a bull's head. It is licensed and guaranteed. After using 10 month, the lens is fine, the color protection is good, and the package invoice is complete, which can sell for about 6500 yuan. Loss 1K yuan is regarded as depreciation in this year. It is more cost-effective to think about it. After all, this 10 month is a bull's head. Of course, some people say that this 7500 may earn 1K in a month, but after all, it is uncertain and risky. As long as the lens is good, as soon as the advertisement is posted in the second-hand market, the bull's head is asked almost immediately, and there is nothing to worry about if it can't be sold.

My personal advice:

1, try to shoot well within the budget, which will not only allow you to shoot well, but also facilitate upgrading and reselling in the future, or transfer the recovered funds. Few people who play SLR don't want to change the lens. One of the joys of SLR is that it can change lenses. Therefore, it is recommended to buy a lens with good reputation and good imaging as much as possible for future use.

2. Be sure to buy a good photo of the focus segment you take most often. The shot segments that are not frequently shot can be temporarily ignored or invested less.

I would rather buy an avatar with a good image than make do with it. In particular, some people deliberately bought a bunch of lenses in order to match the focal length of 17-200 when the money is not very abundant. As a result, they spent a lot of money, and none of them had a good imaging effect.

4. It is enough to buy a general wide-angle lens for shooting scenery, because most landscapes need a small aperture. In the case of a small aperture, the imaging of a general lens will be very good, so unless it is particularly necessary, there is generally no need to buy a wide-angle lens with a large aperture.

5, 35- 135 is the most frequently used medium focus, because taking commemorative photos, portraits and humanities are all in this medium focus. Especially, the focal length of 50MM and 85MM is almost the same person, because there is no need to shoot landscapes and insects and plants, but it is difficult not to shoot girlfriends, wives, children, friends and family, well, yes, PLMM.

6, telephoto suggests that people who really like telephoto buy it, because telephoto lenses are generally very heavy, and people who don't like it are generally reluctant to take out the heavy lens. Many people have bought telephoto lenses, and most of them still like medium focal lenses such as 24-70, 28-70 and 85 mm

Generally speaking, there are several basic reasons for the lens:

1, fixed-focus imaging with the same focal length is better than zooming. This is because zooming should take into account the imaging quality of several focal segments, focusing is very simple, just do a focal segment well.

2. The bigger the aperture, the more expensive it is, and the more expensive the aperture is. The larger the aperture, the more difficult the technology and the higher the cost, so the lens with large aperture is commonly known as big eyes. Those big watery eyes are very attractive! Like big eyes is to spend money on a bag. Alas, the taste is only for myself.

The heavier the lens, the better. It must be good for manufacturers to guide your boss (this sentence is almost nonsense, but it is true).

Each lens has its own golden imaging aperture. Generally speaking, the imaging of F5.6/8/ 1 1 will be better. Different types of lenses have different optimal imaging apertures. We should know our own lens and try to take pictures with its focal length and aperture.

4, all brands of lenses, as long as they are zoom heads, and the constant aperture is definitely good, the bigger the constant aperture, the better. Nikon's civil zoom lens currently has a maximum constant aperture of 2.8. Nikon's zoom constant aperture is only 2.8, which is a bull's head. Otherwise, a constant zoom aperture of 2.8 means a big change.

When choosing a lens, you should first choose what you want to shoot according to what I wrote earlier. For example, if you want to take portraits and especially like to take close-ups, you can choose a zoom of 70-200. Nikon's famous AF-SVR70-200mmF2.8GIF-ED is a bull's head with a constant large aperture of 2.8.

5. The maximum aperture of the fixed-focus lens can be opened to 1.4, which is a good start. At present, Nikon's common 50MMF 1.4D and 85MMF 1.4D are very good lenses, especially 85MMF 1.4D is a portrait poison head.

6. There is no weak macro line. Because of design technology and other reasons, even small factories can make good macro lenses, so you can buy them with confidence. Macro lenses are basically not much different.

The above is an introduction to the problems that novice photographers should pay attention to when choosing SLR lenses. I hope it helps you.