focusing screen

简明释义

毛玻璃

英英释义

例句

1.When using a DSLR camera, the image is displayed on the focusing screen 对焦屏 before you take the shot.

使用单反相机时，图像会在对焦屏 focusing screen上显示，然后再拍摄。

2.Make sure to clean the focusing screen 对焦屏 regularly to maintain clear visibility.

确保定期清洁对焦屏 focusing screen以保持清晰的可见性。

3.The brightness of the focusing screen 对焦屏 can affect how well you can see your subject in low light.

在低光环境下，对焦屏 focusing screen的亮度会影响你看清主体的能力。

4.The focusing screen 对焦屏 allows photographers to see exactly what will be captured in the frame.

这块对焦屏 focusing screen让摄影师能够准确看到将被捕捉到的画面。

5.Some advanced cameras have interchangeable focusing screens 对焦屏 for different types of photography.

一些高级相机配备可更换的对焦屏 focusing screens，适用于不同类型的摄影。

作文

In the world of photography, the term focusing screen refers to a crucial component found in many cameras, especially in single-lens reflex (SLR) and digital single-lens reflex (DSLR) cameras. The focusing screen is a translucent panel located at the back of the camera's mirror assembly, which plays a vital role in helping photographers achieve precise focus on their subjects. Understanding the function and significance of the focusing screen can greatly enhance one's photographic skills.When a photographer looks through the viewfinder of an SLR or DSLR camera, they are actually peering through the focusing screen. This screen allows light from the lens to pass through and provides a real-time preview of the scene being captured. The image that appears on the focusing screen is inverted and reversed, which may seem confusing at first, but it accurately represents what the lens sees. This is essential for ensuring that the subject is in sharp focus before the shutter is released.One of the primary advantages of using a focusing screen is the ability to manually adjust the focus. Unlike some modern digital cameras that rely heavily on autofocus systems, many photographers prefer the tactile experience of focusing manually. The focusing screen provides a clear and detailed view, enabling photographers to make fine adjustments to achieve the desired sharpness. This is particularly important in situations where depth of field is critical, such as in macro photography or portraiture.Moreover, different types of focusing screens are available, each designed for specific photographic needs. For instance, some screens are optimized for low-light conditions, allowing more light to pass through and making it easier to focus in dim environments. Others may feature grid lines or markings that assist in composing the shot accurately. Photographers can choose a focusing screen that best suits their shooting style and preferences, adding another layer of customization to their equipment.In addition to aiding in focus, the focusing screen also serves as a tool for composition. Many photographers use the screen to frame their shots and ensure that elements within the scene are balanced and visually appealing. The grid lines found on some screens can help with alignment and symmetry, making it easier to create well-composed images.As technology has advanced, some newer cameras have introduced electronic viewfinders that replace traditional focusing screens. While these electronic displays offer several benefits, such as real-time exposure previews and focus peaking, many photographers still appreciate the classic feel of optical viewfinders with focusing screens. This preference highlights the ongoing relevance of the focusing screen in the ever-evolving world of photography.In conclusion, the focusing screen is an essential element of many cameras that significantly impacts the way photographers capture images. By providing a clear view for manual focusing and assisting in composition, the focusing screen remains a valuable tool for both amateur and professional photographers alike. Understanding its function and potential can lead to improved photographic outcomes and a deeper appreciation for the art of photography.

在摄影的世界中，术语focusing screen指的是许多相机中一个至关重要的组件，特别是在单反相机（SLR）和数字单反相机（DSLR）中。focusing screen是位于相机镜子组件后面的一个半透明面板，它在帮助摄影师精确对焦拍摄对象方面发挥着重要作用。理解focusing screen的功能和意义可以大大提升一个人的摄影技巧。当摄影师通过单反或数码单反相机的取景器观察时，他们实际上是在通过focusing screen。这个屏幕允许镜头的光线通过，并提供实时预览即将捕捉到的场景。出现在focusing screen上的图像是倒置和反转的，这起初可能会让人感到困惑，但它准确地代表了镜头所看到的内容。这对于确保在快门释放之前对象处于清晰对焦状态至关重要。使用focusing screen的主要优点之一是能够手动调整焦距。与一些现代数码相机严重依赖自动对焦系统不同，许多摄影师更喜欢手动对焦的触感体验。focusing screen提供了清晰而详细的视图，使摄影师能够进行细微调整，以达到所需的清晰度。这在景深至关重要的情况下尤为重要，例如微距摄影或肖像摄影。此外，还有不同类型的focusing screens可供选择，每种都旨在满足特定的摄影需求。例如，一些屏幕经过优化以适应低光条件，允许更多的光线通过，从而使在昏暗环境中对焦变得更加容易。其他屏幕可能具有网格线或标记，帮助准确构图。摄影师可以选择最适合自己拍摄风格和偏好的focusing screen，为他们的设备增添另一层定制。除了帮助对焦，focusing screen还作为构图的工具。许多摄影师使用该屏幕来框定拍摄并确保场景中的元素平衡且视觉上吸引人。有些屏幕上的网格线可以帮助对齐和对称，使得创建良好构图的图像变得更加容易。随着技术的进步，一些新型相机引入了电子取景器，取代了传统的focusing screens。虽然这些电子显示器提供了多种好处，如实时曝光预览和对焦峰值，但许多摄影师仍然欣赏带有focusing screens的光学取景器的经典感觉。这种偏好突显了在不断发展的摄影世界中focusing screen的持续相关性。总之，focusing screen是许多相机的重要组成部分，对摄影师拍摄图像的方式产生了重大影响。通过提供清晰的手动对焦视图和辅助构图，focusing screen仍然是业余和专业摄影师都非常珍视的工具。理解其功能和潜力可以导致更好的摄影结果，并加深对摄影艺术的欣赏。