长焦镜头焦距有多少？ 数码相机怎样调焦距数码相机（不是单反）怎么调焦距？英文双语对照

一、长焦镜头焦距有多少？

您好，长焦镜头的焦距一般指的是超过50mm的镜头，一般包括70-200mm、100-400mm等，焦距越长，镜头的放大倍率越高，可以拍摄更远距离的物体，也可以实现浅景深的效果，使主体更加突出。

除了焦距，长焦镜头还有许多其他特点，比如光圈大小、重量、防抖等。大光圈可以让镜头在低光环境下表现更好，重量较大的镜头则需要使用三脚架等辅助设备，防抖功能可以减少手持拍摄时的抖动，提高成像质量。

此外，长焦镜头还有一些应用场景，比如拍摄野生动物、体育比赛、演唱会等需要远距离拍摄的场合。但是，由于长焦镜头价格较高，使用起来也相对复杂，需要一定的技术和经验，因此不是所有人都需要购买和使用。

二、数码相机怎样调焦距数码相机（不是单反）怎么调焦距？

佳能60d数码相机怎么调节焦距： 60d配用的镜头不同，调节焦距的镜头也不同：

1：当配用的镜头是定焦镜头时，不能调节焦距；

2：当配用的镜头是旋转变焦环变焦时（如：EF-S 18-200mm f/3.5-5.6 IS ），可转动镜头的变焦环改变（调节）焦距；

3：当配用的镜头是推拉变焦环变焦时（如：EF 100-400mm f/4.5-5.6L IS USM），可推拉镜头的变焦环改变（调节）焦距。

三、iphone13长焦镜头焦距？

像头焦距维持在26mm，镜头光圈为f/1.6;超广角镜头采用更快的感光元件，镜头焦距为13mm，可提供120度视角，镜头光圈为f/2.4。

长焦距镜头是指比标准镜头的焦距长的摄影镜头。长焦距镜头分为普通远摄镜头和超远摄镜头两类。普通远摄镜头的焦距长度接近标准镜头，而超远摄镜头的焦距却远远大于标准镜头。

四、潜望长焦对焦距离？

潜望式长焦相机最短对焦距离约 1m。

超广 角相机最短对焦距离约 5cm。 前置相机为定焦,景深范围 30cm~40cm。

小米 11 Ultra 的主摄最短对焦距离约 10cm。

五、长焦镜头焦距大小区别？

焦距越大，进入的光线也就越好，拍照的清晰度也就越高。

六、五倍焦距和长焦差距？

五倍焦距和长焦的差距是在概念上不太一样，五倍焦距属于计量凸透镜聚焦的焦距的概念，应用到凸透镜成像原理，五倍焦距的物体会在凸透镜另一侧生成缩小倒立实像。而长焦则是特指照相机镜头焦距长短的概念。一般来说照相机镜头分为短焦、中焦、长焦三个焦段，中焦镜头的代表包括标准镜头，如135照相机的50mm镜头就是典型的标准镜头，比标准镜头焦距短的叫短焦镜头，比标准镜头焦距长的叫长焦镜头。

七、55mm焦距是长焦还是短焦？

55mm焦距是中焦。

我们的标准镜头是50mm，也是最符合人眼视觉效果的，拍摄的片子跟人眼看到的真实感觉最接近。

长焦镜头一般都在100mm焦距以上，通常说70-200mm镜头为中长焦镜头。短焦镜头一般都在28-50mm范围，低于28mm的镜头就是广角镜头或超广角镜头、鱼眼镜头。所以，55mm焦距既不是长焦也不是短焦。

八、焦长和焦距的定义和区别？

焦距F是固定不变的,焦长(焦平面至镜头中心的距离)也称像距是随物距的变化而变化的.F

九、小米13ultra长焦等效焦距？

为120mm左右。因为小米13ultra采用了三摄像头设计，其中长焦摄像头的实际焦距为50mm，而官方宣传的5倍光学变焦则是通过与主摄像头的对比得出的，因此等效焦距为120mm左右。等效焦距是指在不同传感器尺寸下，具有相同视角的实际焦距。在手机摄像头中，由于传感器尺寸较小，因此需要通过光学变焦或数字变焦来实现远距离拍摄。而等效焦距则可以帮助我们更好地理解不同摄像头的拍摄能力。

十、焦距50mm，焦距85mm是个怎样的概念？长焦吗？

这里要说到焦距的划分： 通常我们说，焦距小于20mm为超广角镜头，24mm到35mm为广角镜头，50mm为标准镜头，80mm至300mm为长焦（远摄、望远）镜头，大于300mm为超长焦镜头。

如果是定焦镜头，则50mm是标准镜头，也就是标头。85mm则属于远摄镜头了。定焦镜头的焦距固定，是不能变焦的。如果是变焦镜头，如 AF-S VR 24-120mm f/3.5-5.6G IF-ED，那么24mm叫做该镜头的广角端，120mm叫做望远端， 24-35mm的范围可以称为该镜头的广角焦段，80-120mm则称为远摄焦段，剩下的就是中焦段了。以上都是针对35mm相机而言的，如果是尼康的数码单反相机，则需要乘1.5的焦距转换系数再来讨论焦段。如24-120安装在D80上焦距变为36-180，就不再包含广角焦段了，而长焦端变为了180，增加了镜头的远摄能力。

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英文翻译对照，仅供参考

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One, how many does telephoto lens focal length have?

Hello, what the focal length of telephoto lens points to commonly is the camera lens that exceeds 50mm, include 70-200mm, 100-400mm to wait commonly, focal distance is longer, the enlarge fold of camera lens is taller, can film more remote object, also can achieve the result of shallow depth of field, make subject more outstanding.

Besides focal length, telephoto lens still has a lot of other characteristics, for instance aperture size, weight, prevent tremble etc. Big aperture can make camera lens better in the expression below low luminous environment, the shot with bigger weight needs to use the auxiliary device such as tripod, prevent shake a function to be able to decrease hold when filming shake, rise to resemble quality.

In addition, telephoto lens still has a few to apply setting, film for instance the need such as match of wild animal, sports, concert is remote filmed circumstance. But, because telephoto lens price is higher, use rise relatively complex also, need certain technology and experience, because this is not everybody,use.

2, how does digital camera move camera of focal length number (be sheet is turned over) how to move focal distance?

Beautiful can how does 60d number camera adjust focal length: The scene that 60d mixes to use is different, adjust the camera lens of focal length is different also:

1: The scene that should deserve to use is when focussing camera lens, cannot adjust focal length;

2: The scene that should deserve to use is change coming back when anxious annulus scorch (be like: EF-S 18-200mm F/3.5-5.6 IS) , can turn the scorch annulus of camera lens is changed (adjust) focal length;

3: The scene that should deserve to use is scorch of push-pull scorch annulus when (be like: EF 100-400mm F/4.5-5.6L IS USM) , but the scorch annulus of push-pull camera lens is changed (adjust) focal length.

3, focal length of Iphone13 telephoto lens?

Focal length resembling a head is maintained in 26mm, camera lens aperture exceeds wide-angle lens to use faster sensitive cell for F/1.6; , camera lens focal length is 13mm, can offer 120 degrees of perspectives, camera lens aperture is F/2.4.

Camera lens of long focal distance is the photography camera lens that shows the focal distance that compares standard camera lens is long. Cent of camera lens of long focal distance photographs camera lens for common telephoto lens and over-distance two kinds. The focal length length of common telephoto lens is close to standard camera lens, and the focal length that exceeds telephoto lens is more than standard camera lens far however.

4, go hope to grow anxious to anxious distance?

Go hope type grows anxious camera the shortest make an appointment with 1m to anxious distance.

Super- extensive role watch for a chance is the shortest make an appointment with 5cm to anxious distance. Buy camera is before focus, 30cm~40cm of limits of depth of field.

Of millet 11 Ultra advocate photograph the shortest make an appointment with 10cm to anxious distance.

5, distinction of size of telephoto lens focal length?

Focus is bigger, entered light is better also, the definition that take a picture is higher also.

6, fivefold focal length and lasting anxious difference?

Fivefold focal length and growing anxious difference is to be on the concept not quite same, fivefold focal length belongs to the concept of the focal length of metric convex focusing, application is become to convex like the principle, the content experience of fivefold focal length creates contractible handstand real image in convex other a side. And long anxious it is the concept that refers in particular to accident of focal length of camera camera lens. Generally speaking cent of camera camera lens is short anxious, the part of the body cavity between the diaphragm and the umbilicus housing the spleen, long Jiao San anxious paragraph, the delegate of camera lens of the part of the body cavity between the diaphragm and the umbilicus housing the spleen includes standard camera lens, the 50mm camera lens that is like 135 camera is typical standard camera lens, than standard camera lens focal length calls short Jiao Jing shortly the head, make telephoto lens than what focal length of standard camera lens grows.

7, is 55mm focal length long anxious short still anxious?

55mm focal length is the part of the body cavity between the diaphragm and the umbilicus housing the spleen.

Our standard camera lens is 50mm, also be most those who accord with effect of person eye vision, the real sense that filmed film sees with person eye is the most adjacent.

Telephoto lens is in commonly above of 100mm focal length, the telephoto lens in saying 70-200mm camera lens is normally. Brief anxious shot is in commonly 28-50mm limits, the camera lens under 28mm is wide-angle lens or exceed camera lens of wide-angle lens, pearl eye. So, both neither of 55mm focal length is long Jiao Ye not be short anxious.

8, the definition of Jiao Changhe focal length and distinction?

Focal length F is changeless, anxious long (the distance that anxious plane reachs camera lens center) the.F that also says image distance is along with the change of object distance change

9, does millet 13ultra grow anxious equivalent focal length?

For 120mm left and right sides. Because millet 13ultra was used 3 photograph design resembling a head, grow among them anxious photograph the actual focus that resembles a head to be 50mm, and the 5 times optical scorch that the government publicizes is to pass with advocate photograph the contrast that resembles a head to reach, because this is equivalent,focal length is controlled for 120mm. Equivalent focal length is to show in different sensor dimension falls, have the actual focus of identical perspective. Photograph in the mobile phone in resembling a head, because sensor dimension is lesser, because this needs,come true through optical scorch or digital scorch remote film. And equivalent focal length can help us understand better different photograph those who resemble a head to film ability.

10, focal length 50mm, a what kind of concept is focal length 85mm? Long anxious?

Respecting focus wants here differentiate: Normally we say, focal length is less than 20mm to exceed wide-angle lens, 24mm is wide-angle lens to 35mm, 50mm is standard camera lens, 80mm is to 300mm long anxious (far photograph, look far) camera lens, be more than 300mm to be anxious camera lens of train in excess specified length.

If be to focus camera lens, criterion 50mm is standard camera lens, namely heading. 85mm belongs to telephoto lens. The focal length that focuses camera lens is fixed, be cannot of scorch. If be scorch camera lens, be like AF-S VR 24-120mm F/3.5-5.6G IF-ED, so the extensive role end that 24mm calls this camera lens, 120mm is called Wang Yuanduan, the wide part that the limits of 24-35mm can call this camera lens is anxious paragraph, 80-120mm is called far photograph anxious paragraph, those who remain is the part of the body cavity between the diaphragm and the umbilicus housing the spleen paragraph. Above is in the light of 35mm camera character, if be digital sheet of Ni Kang,turn over camera, need to multiply the focal length commutation coefficient of 1.5 to discuss again anxious paragraph. If 24-120 is installed,on D80 focal length turns into 36-180, include wide part no longer anxious paragraph, and long Jiao Duan turned into 180, those who increased camera lens is far photograph ability.