I m sorry, but I m going to bother you again, do you use a lens of 18 55?

I have a 17-55 and a 17-50, but there is no 18-55, you can just say what you have a problem!

Yes. The 17th row can be pulled very clearly, and the stands are very close to the stage.

18-55 of the camera lens indicates the focal length, 18-55 is the shortest focal length of 18mm, and the longest focal length is 55mm. But because it is an APS format lens, the actual focal length on the APS body is required.

Taking the Canon EF-S18-55mmf STM as an example, 18-55 represents the focal length range of this lens, 18 is the minimum focal length and also represents the maximum viewing angle, and 55 is the maximum focal length and represents the minimum viewing angle. EF-S stands for lenses that can only be used with APS-C format cameras. IS stands for image stabilization, and STM stands for the lens's built-in stepper motor, which is good for fast focusing.

The shorter the focal length, the wider you can see, and the longer the focal length, the farther you can see.

Both lenses belong to the most ordinary sleeves, and the quality is average.

In terms of focal length, the 18-135 focal length is more practical, from wide angle to medium telephoto, which can basically meet the needs of daily shooting; However, the 18-55 may be a little limited by the lack of a medium and telephoto range, so some subjects may be a little limited. Of course, ** is also 18-135 is more expensive.

As for the marked focal length value, it refers to the focal length range, and a large value means that the focal length is long, which can pull farther scenes closer to shoot, but at the same time, the narrower the angle of view, the fewer scenes the picture can accommodate.

Different types of lenses have completely different functions, and it depends on the subject matter and shooting angle you are used to choosing the lens that suits you, and you can't simply use the focal length value to define the quality of the lens.

18 55 means that the lens is actually shorter at 18-55mm, but this will be in the APS-C format Nikon, etc.) or Canon), so the equivalent 135 actual focal length should be around 27-80mm.

200mm is already a telephoto.

The concept of how many times the optical zoom is to use the telephoto end to compare the wide-angle end, such as 1855, which is 55 18, but this is of little significance, and it is said more in consumer machines, because 55 18 and 200 70 may be about the same, but the actual focal length is far from the same.

SLR cameras also have lenses with high magnification, such as Tamron's 18-270mm, but the higher the optical magnification of the lens, the more focal length the lens takes care of, so the more complex the lens and structure are needed, so the quality of the lens is worse. And because the SLR can change the lens, it will give priority to ensuring the effect.

The 18-55 lens means that the lens can zoom in the 18-55mm range. These numbers are the focal length of the lens, which means that the focal length can be changed within this range, and this kind of lens is also called a zoom lens. The shorter the focal length, the larger the field of view, and the scenery is pushed farther and narrower; The longer the focal length, the smaller the field of view, and the scene is zoomed in and enlarged.

First of all, the focal length of the lens from 18 to 55 mm covers the usual shooting range. 18-55mm is a special lens for APSC format, the focal length of this lens is equivalent to about 27-82mm in the framing angle of view, which covers the conventional 28mm, 35mm, 50mm, 80mm focal length range, from small wide angle to medium telephoto Some common focal lengths are covered, which means that it is a very practical design in terms of focal length, and it is also an important reason why manufacturers have been randomly selling it as a set of lenses for a long time.

Fourth, the focusing speed of 18-55mm is among the best in the entire lens series of various brands. You may not have noticed that the 18-55mm lens is a very, very beginner lens that has a blazing fast focusing speed. Regardless of the brand, this lens maintains excellent focusing speed.

It is precisely because it has been used as a set of lenses for a long time with the body**, so the manufacturer still has a lot of excellent technical blessings on it, focusing speed is one of the aspects, and it will not lose the manufacturer's face in terms of focusing.

This means that when this lens is imaged on 35mm film, the focal length is 18-55mm, but the lens with this lens is usually APS-C format SLR, and the actual equivalent focal length is about 27(

The actual zoom range of the lens is between 18mm and 55mm, which is the focal length for full-frame and 28-85mm for APS-C

When buying a DSLR camera, there are bare metal and kit. The bare metal is only the body without a matching lens, and the lens needs to be purchased separately. The set is equipped with a lens.

This is divided into single and double heads. A single-head sleeve is equipped with only one lens, which is generally an 18 55mm zoom lens; The double-head cover is equipped with two lenses, usually an 18 55mm wide-angle zoom lens and a 55 200mm medium-focus zoom lens. Usually the quality of the lenses is very average, but it is more practical and economical, and it is suitable for beginners.