hyperfocal

简明释义

英[ˌhaɪpəˈfəʊkəl]美[ˌhaɪpəˈfoʊkəl]

adj. 超过焦距的

英英释义

单词用法

同义词

反义词

例句

1.Proper focusing is critical at night because small apertures are often impractical — therefore one cannot afford to waste mispositioning the depth of field (see hyperfocal distance).

在夜晚，合适的聚焦非常关键，因为小光圈常常不合实际。因此，你不能错误地定位景深 （超焦距）。

2.Proper focusing is critical at night because small apertures are often impractical — therefore one cannot afford to waste mispositioning the depth of field (see hyperfocal distance).

在夜晚，合适的聚焦非常关键，因为小光圈常常不合实际。因此，你不能错误地定位景深 （超焦距）。

3.In architectural photography, knowing the hyperfocal 超焦距 distance can help ensure that both the building and its surroundings are in focus.

在建筑摄影中，了解hyperfocal 超焦距距离可以帮助确保建筑物及其周围环境都在焦点内。

4.To achieve maximum depth of field, many photographers calculate the hyperfocal 超焦距 distance before taking a shot.

为了获得最大的景深，许多摄影师在拍摄之前计算hyperfocal 超焦距距离。

5.When photographing landscapes, setting your lens to the hyperfocal 超焦距 distance ensures that everything from the foreground to the horizon is in sharp focus.

在拍摄风景时，将镜头设置为hyperfocal 超焦距距离可以确保从前景到地平线的所有事物都清晰可见。

6.Using the hyperfocal 超焦距 method allows you to capture sharp images even in low light conditions.

使用hyperfocal 超焦距方法可以让你在低光条件下拍摄出清晰的图像。

7.The hyperfocal 超焦距 distance varies depending on the aperture and focal length of the lens used.

根据所用镜头的光圈和焦距，hyperfocal 超焦距距离会有所不同。

作文

In the realm of photography, understanding concepts that enhance image quality is crucial for both amateur and professional photographers. One such concept is the idea of the hyperfocal distance. The hyperfocal distance refers to the closest distance at which a lens can be focused while keeping objects at infinity acceptably sharp in the image. This technique is particularly useful in landscape photography, where depth of field is essential to capture the vastness and detail of the scene. By focusing on the hyperfocal point, photographers can ensure that everything from a certain distance in front of them to the horizon remains in focus, thereby creating a sense of depth and clarity in their images.To calculate the hyperfocal distance, one can use a simple formula: H = (f^2) / (N * c) + f, where H is the hyperfocal distance, f is the focal length of the lens, N is the aperture (f-stop), and c is the circle of confusion. The circle of confusion is a measure of what is considered an acceptable level of sharpness in an image. By mastering this calculation, photographers can make informed decisions about their settings and achieve the desired results.The practical application of the hyperfocal distance is evident when photographing landscapes. Imagine standing at the edge of a cliff, overlooking a breathtaking valley filled with vibrant colors and intricate details. To capture this beauty effectively, a photographer must ensure that both the foreground elements, such as rocks or flowers, and the distant mountains are in sharp focus. By setting the camera to the hyperfocal distance, the photographer can maximize the depth of field, allowing for a stunning composition that draws the viewer's eye throughout the entire image.Moreover, understanding the hyperfocal distance can also enhance the creative possibilities in photography. For instance, in night photography, where light is limited, achieving a broad depth of field becomes even more critical. By utilizing the hyperfocal technique, photographers can capture starry skies while ensuring that the foreground remains sharp. This dual focus not only creates a visually striking image but also tells a story by connecting the foreground with the celestial background.In addition to its technical aspects, the hyperfocal distance encourages photographers to explore their surroundings more consciously. By considering what to include in the frame and how to arrange elements within it, photographers can develop a more profound appreciation for their environment. This awareness often leads to more thoughtful compositions and unique perspectives that resonate with viewers.In conclusion, the concept of hyperfocal distance is a fundamental tool in a photographer's arsenal. It allows for greater control over depth of field and sharpness, ultimately leading to more impactful images. Whether capturing sweeping landscapes or intimate details, understanding how to utilize the hyperfocal distance can significantly elevate the quality of one's work. As photographers continue to experiment and refine their techniques, the mastery of hyperfocal distance will undoubtedly remain a vital aspect of their craft.

在摄影领域，理解提高图像质量的概念对业余和专业摄影师都至关重要。其中一个概念是hyperfocal距离。hyperfocal距离是指镜头可以对焦的最近距离，同时保持远处物体在图像中清晰可接受。这个技巧在风景摄影中特别有用，因为景深对于捕捉场景的广阔和细节至关重要。通过对焦于hyperfocal点，摄影师可以确保从他们面前的某个距离到地平线的所有东西都保持清晰，从而在图像中创造深度和清晰感。要计算hyperfocal距离，可以使用一个简单的公式：H = (f^2) / (N * c) + f，其中H是hyperfocal距离，f是镜头的焦距，N是光圈（f-stop），c是模糊圆圈。模糊圆圈是衡量图像中被认为是可接受的清晰度水平的标准。通过掌握这个计算，摄影师可以对他们的设置做出明智的决定，并实现所需的效果。hyperfocal距离的实际应用在拍摄风景时显而易见。想象一下站在悬崖边缘，俯瞰一个色彩斑斓、细节丰富的美丽山谷。为了有效捕捉这种美，摄影师必须确保前景元素（如岩石或花朵）和遥远的山脉都处于清晰聚焦状态。通过将相机设置为hyperfocal距离，摄影师可以最大化景深，从而创造出令人惊叹的构图，吸引观众的目光穿越整个图像。此外，理解hyperfocal距离还可以增强摄影中的创意可能性。例如，在夜间摄影中，光线有限，获得广泛的景深变得更加关键。通过利用hyperfocal技巧，摄影师可以捕捉星空，同时确保前景保持清晰。这种双重焦点不仅创造出视觉上引人注目的图像，还通过连接前景与天体背景讲述了一个故事。除了其技术方面，hyperfocal距离还鼓励摄影师更有意识地探索他们的周围环境。通过考虑在画面中包括什么以及如何安排其中的元素，摄影师可以对环境产生更深的欣赏。这种意识往往会导致更深思熟虑的构图和独特的视角，与观众产生共鸣。总之，hyperfocal距离的概念是摄影师工具箱中的基本工具。它允许对景深和清晰度进行更大的控制，最终导致更具影响力的图像。无论是拍摄广阔的风景还是细腻的细节，理解如何利用hyperfocal距离可以显著提升作品的质量。随着摄影师继续实验和完善他们的技巧，掌握hyperfocal距离无疑将继续成为他们工艺的重要方面。