depth of focus

depth of focus的音标为[dɪ"fəʊkəʊ]，基本翻译为“焦深；焦点深度”。

速记技巧：利用谐音记忆法，将depth转化为“碟谱”，of focus转化为“饿佛”。这样，记忆成“碟谱深度饿佛”。

以上内容仅供参考，建议到相关网站查询或请教专业人士。

Depth of focus这个词的词源可以追溯到拉丁语“focus”，意为“焦点”。它最初被引入英语是在17世纪，用于描述相机镜头中可以清晰看到的距离范围。这个词在英语中的形式有所变化，例如在某些情况下，它可能被写作“depth of field”。

相关单词：

1. focal length：这个词与depth of focus密切相关，因为它描述了镜头能够清晰聚焦的距离范围。它的词源可以追溯到拉丁语“focare”，意为“聚焦”。

2. magnification：这个词描述了物体被放大到何种程度，与depth of focus形成对比。它的词源可以追溯到拉丁语“magnus”，意为“大的”。

3. aperture：这个词描述了镜头孔径的大小，也就是光线可以进入的孔洞。它的词源可以追溯到拉丁语“apertura”，意为“开口”。

4. focus：这个词与depth of focus有直接关系，因为它描述了物体在镜头中形成的焦点。它的词源可以追溯到拉丁语“focus”，意为“焦点”。

5. defocus：这个词描述了物体离开焦点时的模糊状态。它的词源可以追溯到拉丁语“defocus”，意为“离开焦点”。

以上这些单词都与depth of focus这个词有密切关系，它们描述了不同的摄影和光学概念。这些单词在英语中广泛使用，并被广泛应用于摄影、光学和科学领域。

至于变化形式，depth of focus本身就是一个名词形式，而focal length、magnification、aperture、focus和defocus都是形容词或动词的形式。此外，depth of field也是一个常用的短语形式，它描述的是相机镜头中可清晰看到的深度范围。

至于长度超过100字的部分，我主要解释了这些单词的词源以及它们在英语中的使用情况。希望这些信息对你有所帮助！

常用短语：

1. depth of field 焦点深度

2. shallow depth of field 浅景深

3. maximum depth of field 最深焦点

4. minimum depth of field 最浅焦点

5. hyperfocal distance 超焦距

6. focal length 焦距

7. infinity focus 无限远对焦

例句：

1. The photographer used a shallow depth of field to blur the background and focus on the subject.

2. The camera had a maximum depth of field of 20 meters, allowing for precise focus on the subject.

3. When shooting at close range, the photographer needed to use a hyperfocal distance to avoid distorting the image.

4. The photographer adjusted the focal length of the lens to achieve the desired effect.

5. The camera was set to infinity focus to ensure that objects at infinity were in sharp focus.

6. The depth of field is an essential aspect of photography that determines how much of the scene is in focus at any given moment.

7. The photographer used a combination of shallow depth of field and hyperfocal distance to create a dreamy and ethereal image.

英文小作文：

Title: The Magic of Depth of Focus

When taking pictures, the depth of focus is an essential aspect that determines how much of the scene is in focus at any given moment. From portrait photography to landscape shots, the depth of field can create a dreamy and ethereal effect or make objects stand out clearly from the background.

For instance, using a shallow depth of field can blur the background and focus on the subject, creating a sense of mystery and intrigue. Conversely, a deep depth of field can make objects at infinity appear sharply focused, giving a sense of immersion and reality to the scene.

Moreover, adjusting the focal length and hyperfocal distance can also affect the depth of field, allowing for precise control over how much of the scene is in focus. This is particularly useful when shooting at close range or capturing distant landscapes, where the slightest adjustment can make a big difference in the final image.

In conclusion, the depth of focus is a powerful tool that can transform a simple scene into something magical and unique. It is essential to master this aspect of photography to create stunning and memorable images that will captivate viewers and inspire others to explore and appreciate the beauty of our world.