exposure time

简明释义

曝光时间

英英释义

例句

1.For night photography, you often need to increase the exposure time significantly.

夜间摄影时，您通常需要显著增加曝光时间。

2.In low light conditions, a longer exposure time can help to gather more light.

在低光环境下，较长的曝光时间可以帮助收集更多光线。

3.The photographer adjusted the exposure time to capture the perfect sunset.

摄影师调整了曝光时间以捕捉完美的日落。

4.The film camera requires you to manually set the exposure time for each shot.

胶卷相机要求您为每次拍摄手动设置曝光时间。

5.A shorter exposure time is ideal for freezing fast-moving subjects.

较短的曝光时间非常适合冻结快速移动的对象。

作文

In the world of photography, one of the most crucial elements that determines the quality of an image is the exposure time. This term refers to the duration for which the camera's sensor is exposed to light when capturing a photograph. A longer exposure time allows more light to hit the sensor, which can result in brighter images, while a shorter exposure time can lead to darker images but may also capture fast-moving subjects more clearly. Understanding how to manipulate exposure time is essential for photographers who want to master their craft.When it comes to taking photographs, various factors come into play, including aperture and ISO settings. However, exposure time remains a fundamental aspect that can drastically alter the final outcome of an image. For instance, if a photographer wants to capture the beauty of a waterfall, they might choose a longer exposure time to create a smooth, silky effect on the flowing water. This technique is often referred to as 'long exposure photography.' It enables the photographer to convey motion and create a sense of tranquility in the image.On the other hand, if a photographer is trying to capture a fast-paced sporting event, they would opt for a shorter exposure time. This allows them to freeze the action, ensuring that every detail of the athlete's movements is sharp and clear. The ability to adjust exposure time according to the situation is what makes photography both an art and a science.Moreover, the concept of exposure time extends beyond still photography. In videography, the exposure time plays a significant role in how motion is perceived. Longer exposure times in video can create a dreamy, ethereal effect, while shorter exposure times can produce crisp, clear images that are essential for fast-moving scenes. Filmmakers must carefully consider exposure time to achieve the desired mood and aesthetic in their work.In addition to artistic considerations, understanding exposure time is also vital for technical reasons. When shooting in low-light conditions, a longer exposure time can help brighten the image, but it also increases the risk of motion blur if the camera or subject moves during the shot. Therefore, photographers often use tripods or stabilization equipment to ensure that the camera remains steady during longer exposures.In conclusion, exposure time is a fundamental concept in both photography and videography that significantly influences the final image or video produced. By mastering the manipulation of exposure time, photographers and filmmakers can enhance their storytelling abilities, evoke emotions, and create visually stunning works of art. Whether capturing the serene flow of water or the dynamic action of a sports event, understanding and effectively utilizing exposure time is key to achieving the desired results in visual media.

在摄影世界中，决定图像质量的最关键因素之一是曝光时间。这个术语指的是在拍摄照片时，相机传感器暴露于光线的持续时间。较长的曝光时间允许更多的光线照射到传感器上，这可能导致图像更亮，而较短的曝光时间则可能导致图像更暗，但也可能更清晰地捕捉快速移动的对象。理解如何操控曝光时间对想要掌握自己技艺的摄影师至关重要。在拍摄照片时，各种因素都会发挥作用，包括光圈和ISO设置。然而，曝光时间仍然是一个基本方面，可以极大地改变图像的最终结果。例如，如果摄影师想要捕捉瀑布的美丽，他们可能会选择较长的曝光时间，以在流动的水面上创造平滑、丝滑的效果。这种技术通常被称为“长时间曝光摄影”。它使摄影师能够传达运动感，并在图像中创造宁静的感觉。另一方面，如果摄影师试图捕捉快速的体育赛事，他们会选择较短的曝光时间。这使他们能够冻结动作，确保运动员动作的每个细节都清晰可见。根据情况调整曝光时间的能力，使摄影既是一门艺术，也是一门科学。此外，曝光时间的概念不仅限于静态摄影。在视频制作中，曝光时间在运动的感知中也起着重要作用。视频中的较长曝光时间可以创造出梦幻般的、空灵的效果，而较短的曝光时间则可以产生清晰、明晰的图像，这对于快速移动的场景至关重要。电影制作者必须仔细考虑曝光时间以实现他们作品中所需的氛围和美学。除了艺术考虑之外，理解曝光时间在技术方面也是至关重要的。当在低光条件下拍摄时，较长的曝光时间可以帮助亮化图像，但如果相机或对象在拍摄过程中移动，也会增加运动模糊的风险。因此，摄影师通常使用三脚架或稳定设备，以确保在较长曝光期间相机保持稳定。总之，曝光时间是摄影和视频制作中的一个基本概念，显著影响所产生的最终图像或视频。通过掌握曝光时间的操作，摄影师和电影制作人可以增强他们的叙事能力，唤起情感，并创造出视觉上令人惊叹的艺术作品。无论是捕捉水流的宁静，还是体育赛事的动态动作，理解和有效利用曝光时间是实现视觉媒体中所需结果的关键。