英语翻译GeneralAutofocus systems rely on one or more sensors to determine correct focus.Some AF systems rely on a single sensor,while others use an array of sensors.Most modern SLR cameras use through-the-lens optical AF sensors,which also perfor

英语翻译GeneralAutofocus systems rely on one or more sensors to determine correct focus.Some AF systems rely on a single sensor,while others use an array of sensors.Most modern SLR cameras use through-the-lens optical AF sensors,which also perfor
英语翻译
General
Autofocus systems rely on one or more sensors to determine correct focus.Some AF systems rely on a single sensor,while others use an array of sensors.Most modern SLR cameras use through-the-lens optical AF sensors,which also perform as light meters.
The speed and accuracy of through-the-lens optical autofocusing is now often more precise than what can be achieved manually with an ordinary viewfinder.(More precise manual focus can,of course,be achieved with special accessories such as focusing magnifiers.) Autofocus accuracy within 1/3 of the depth of field (DOF) at the widest aperture of the lens is not uncommon in professional AF SLR cameras.
Most multi-sensor AF cameras allow manual selection of the active sensor,and many offer automatic selection of the sensor using algorithms which attempt to discern the location of the subject.Some AF cameras are able to detect if the subject is moving towards or away from the camera,including speed and acceleration data,and keep focus on the subject -- a function used mainly in sports and other action photography.
The data collected from AF sensors is used to control an electromechanical system that adjusts the focus of the optical system.A variation of autofocus is called an electronic rangefinder,a system in which focus data are provided to the operator,but adjustment of the optical system is still performed manually.
The speed of the AF system is highly dependent on the maximum aperture offered by the lens.F-stops of around f/2 to f/2.8 are generally considered optimal in terms of focusing speed and accuracy.Faster lenses than this typically have very low depth of field,meaning that it takes longer to achieve correct focus,despite the increased amount of light.Most consumer camera systems will only autofocus reliably with lenses that have a maximum aperture of at least f/5.6,while professional models can often cope with lenses that have a maximum aperture of f/8,which is particularly useful for lenses used in conjunction with teleconverters.

英语翻译GeneralAutofocus systems rely on one or more sensors to determine correct focus.Some AF systems rely on a single sensor,while others use an array of sensors.Most modern SLR cameras use through-the-lens optical AF sensors,which also perfor
一般
自动对焦系统依靠一个或多个传感器确定正确的焦点.有些房颤的系统依靠单一传感器,而另一些人用一系列的传感器.大多数现代的单反相机使用through-the-lens光学心房颤动的传感器,也为光米.
在速度和准确度上现在through-the-lens光比通常更精确才能实现手动与普通的取景器.(更精确的手动对焦,当然可以获得特殊附件如聚焦放大镜.)自动对焦精度在1 / 3的深度(自由度)最宽的镜头光圈并不罕见的专业房颤单反相机.
大多数传感器的选择房颤允许手动相机的活跃的传感器,许多提供自动选择传感器算法,试图了解这个位置的主题.有些房颤摄像机可以检测是否走向或远离摄像机,包括速度和加速度的数据,并继续关注的主题——一个功能主要使用在体育和其他动作摄影.
通过传感器采集到的数据被用来控制一个机电系统调整重点的光学系统.一个变异的自动对焦称为电子测距仪,一个系统中数据集中的经营者,但调整的光学系统仍是手工完成.
心房颤动的速度是高度依赖系统提供了最大的光圈的镜头.F-stops f / 2的f / 2.8通常被认为是最优的对焦速度和精度.快镜头比这通常有很低的景深的,也就是说,它需要更长的时间来达到正确的焦点,尽管轻量的增加.多数消费者才会自动对焦相机系统可靠和透镜,有最大的缝隙中至少f / 5.6,而专业的模型可以经常应付透镜,有最大的孔f / 8,这是特别有用的镜片使用teleconverters.

自动对焦系统依靠一个或多个传感器确定正确的焦点。有些房颤的系统依靠单一传感器,而另一些人用一系列的传感器。大多数现代的单反相机使用through-the-lens光学心房颤动的传感器,也为光米。

在速度和准确度上现在through-the-lens光比通常更精确才能实现手动与普通的取景器。(更精确的手动对焦,当然可以获得特殊附件如聚焦放大镜。)自动对焦精度在1 / 3的深...

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自动对焦系统依靠一个或多个传感器确定正确的焦点。有些房颤的系统依靠单一传感器,而另一些人用一系列的传感器。大多数现代的单反相机使用through-the-lens光学心房颤动的传感器,也为光米。

在速度和准确度上现在through-the-lens光比通常更精确才能实现手动与普通的取景器。(更精确的手动对焦,当然可以获得特殊附件如聚焦放大镜。)自动对焦精度在1 / 3的深度(自由度)最宽的镜头光圈并不罕见的专业房颤单反相机。
大多数传感器的选择房颤允许手动相机的活跃的传感器,许多提供自动选择传感器算法,试图了解这个位置的主题。有些房颤摄像机可以检测是否走向或远离摄像机,包括速度和加速度的数据,并继续关注的主题——一个功能主要使用在体育和其他动作摄影。

通过传感器采集到的数据被用来控制一个机电系统调整重点的光学系统。一个变异的自动对焦称为电子测距仪,一个系统中数据集中的经营者,但调整的光学系统仍是手工完成。

心房颤动的速度是高度依赖系统提供了最大的光圈的镜头。F-stops f / 2的f / 2.8通常被认为是最优的对焦速度和精度。快镜头比这通常有很低的景深的,也就是说,它需要更长的时间来达到正确的焦点,尽管轻量的增加。多数消费者才会自动对焦相机系统可靠和透镜,有最大的缝隙中至少f / 5.6,而专业的模型可以经常应付透镜,有最大的孔f / 8,这是特别有用的镜片使用?????LZ,你最后个单词打错了

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General一般

Autofocus systems rely on one or more sensors to determine correct focus. Some AF systems rely on a single sensor, while others use an array of sensors. Most modern SLR cameras use...

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General一般

Autofocus systems rely on one or more sensors to determine correct focus. Some AF systems rely on a single sensor, while others use an array of sensors. Most modern SLR cameras use through-the-lens optical AF sensors, which also perform as light meters.
自动对焦系统依靠一个或多个传感器确定正确的焦点。有些房颤的系统依靠单一传感器,而另一些人用一系列的传感器。大多数现代的单反相机使用through-the-lens光学心房颤动的传感器,也为光米。


The speed and accuracy of through-the-lens optical autofocusing is now often more precise than what can be achieved manually with an ordinary viewfinder. (More precise manual focus can, of course, be achieved with special accessories such as focusing magnifiers.) Autofocus accuracy within 1/3 of the depth of field (DOF) at the widest aperture of the lens is not uncommon in professional AF SLR cameras.
在速度和准确度上现在through-the-lens光比通常更精确才能实现手动与普通的取景器。(更精确的手动对焦,当然可以获得特殊附件如聚焦放大镜。)自动对焦精度在1 / 3的深度(自由度)最宽的镜头光圈并不罕见的专业房颤单反相机。
Most multi-sensor AF cameras allow manual selection of the active sensor, and many offer automatic selection of the sensor using algorithms which attempt to discern the location of the subject. Some AF cameras are able to detect if the subject is moving towards or away from the camera, including speed and acceleration data, and keep focus on the subject -- a function used mainly in sports and other action photography.
大多数传感器的选择房颤允许手动相机的活跃的传感器,许多提供自动选择传感器算法,试图了解这个位置的主题。有些房颤摄像机可以检测是否走向或远离摄像机,包括速度和加速度的数据,并继续关注的主题——一个功能主要使用在体育和其他动作摄影。

The data collected from AF sensors is used to control an electromechanical system that adjusts the focus of the optical system. A variation of autofocus is called an electronic rangefinder, a system in which focus data are provided to the operator, but adjustment of the optical system is still performed manually.
通过传感器采集到的数据被用来控制一个机电系统调整重点的光学系统。一个变异的自动对焦称为电子测距仪,一个系统中数据集中的经营者,但调整的光学系统仍是手工完成。

The speed of the AF system is highly dependent on the maximum aperture offered by the lens. F-stops of around f/2 to f/2.8 are generally considered optimal in terms of focusing speed and accuracy. Faster lenses than this typically have very low depth of field, meaning that it takes longer to achieve correct focus, despite the increased amount of light. Most consumer camera systems will only autofocus reliably with lenses that have a maximum aperture of at least f/5.6, while professional models can often cope with lenses that have a maximum aperture of f/8, which is particularly useful for lenses used in conjunction with teleconverters.
心房颤动的速度是高度依赖系统提供了最大的光圈的镜头。F-stops f / 2的f / 2.8通常被认为是最优的对焦速度和精度。快镜头比这通常有很低的景深的,也就是说,它需要更长的时间来达到正确的焦点,尽管轻量的增加。多数消费者才会自动对焦相机系统可靠和透镜,有最大的缝隙中至少f / 5.6,而专业的模型可以经常应付透镜,有最大的孔f / 8,这是特别有用的镜片使用teleconverters。
这样就可以了。最后的单词好像是错了。

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一般
自动对焦系统依赖于一个或多个传感器，以确定正确的集中。有些自动对焦系统依赖于一个单一的传感器，而另一些使用一系列的传感器。最现代的单镜头反光照相机使用通过镜头的光学自动对焦传感器，这也表现为轻米。
的速度和准确性通过镜头的光学自动对焦，现在往往更准确的是什么，才能实现手动与普通取景。 （更精确的手动对焦当然可以实现，特别附件，如重点考核。 ）自动对焦精度为1 / 3的景深...

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一般
自动对焦系统依赖于一个或多个传感器，以确定正确的集中。有些自动对焦系统依赖于一个单一的传感器，而另一些使用一系列的传感器。最现代的单镜头反光照相机使用通过镜头的光学自动对焦传感器，这也表现为轻米。
的速度和准确性通过镜头的光学自动对焦，现在往往更准确的是什么，才能实现手动与普通取景。 （更精确的手动对焦当然可以实现，特别附件，如重点考核。 ）自动对焦精度为1 / 3的景深（自由度）在广泛光圈镜头并不少见的专业自动对焦单镜反光相机。
大多数多传感器自动对焦相机允许手动选择的积极传感器，提供众多自动选择传感器使用算法试图辨别的位置问题。有些自动对焦相机可以检测，如果这个问题正在走向或远离相机，包括速度和加速度的数据，并保持专注于主题-一个功能，主要用于体育和其他动作的拍摄。
从收集到的数据自动对焦感应器是用来控制的机电系统，调整的重点是光学系统。更改自动被称为电子测距仪，一个系统，其中重点的数据提供给运营商，但调整光学系统仍是人工操作。
的速度，自动对焦系统是高度依赖于所提供的最大光圈的镜头。架F -停止左右的F / 2镜头一般被认为是最佳的角度集中的速度和准确性。快镜头通常比这非常低的景深，也就是说，它需要花费较长的时间来实现正确的集中，尽管增加的光量。大多数消费者摄像系统只会自动可靠镜头的最大光圈至少最佳拍挡，而专业模特往往可以应付的镜头最大光圈的F / 8 ，这是特别有用的镜头结合使用远摄。

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