All right, when you're ready for submagnification, a humble pair of binoculars will do the trick.

好，当你准备进行低率观时，一副普通双筒望远镜就足够了。

They caught that keeping Tom red-handed had a high-powered house open binoculars by his window.

他们发现，为了让汤姆保持警惕，他窗户旁边有一架高率双筒望远镜。

Well, visible light is physically limited to magnifications up to around 2,000 times.

好吧，可见光在物理上放大率最多只能达到大2000。

And these were glass lens telescopes of magnification of three powers.

些是放大率为三玻璃透镜望远镜。

If your chip cannot handle the ratio multiplier set to 40, do not proceed.

如果你芯片无法处理设置为40率，就不要继续了。

Oh, that's what you get for betting the chalk.

赌率最高马总是赔很惨嘛。

The issue with photography at high magnification is that there is inherently a very shallow depth of field.

高率摄影问题是天生具有非常浅景深。

Now, you can measure a lens’ magnifying power by comparing the angles at which light rays enter your eyes.

现在，你可以通过比较光线以何种角度进入你眼量透镜放大率。

You get maximum magnification when the real image is just barely inside the focal length of the eyepiece. .

当真实图像刚好在目镜焦距内时，您将获得最大放大率。

A flatter, convex objective lens reduced chromatic aberration, gave a longer focal length and, for a fixed eyepiece, greater magnification.

一个更平坦凸透物镜可以减少色差，提供更长焦距， 并且对于固定眼镜片说，能获得更大放大率。

So, the magnifying power of optical tools is limited, because light acts like the wave that it is.

因此，光学工具放大率是 有限，因为光作用就像它波一样。

We start our investigations at a very small magnification, which is equivalent to the highest magnification, which you can actually reach with a light microscope.

我们从一个很小放大率开始我们研究，相当于你用光学显微镜能达到最高放大率。

We should have an observatory on the top of the house, with an extra powerful telescope so we can look at the sky.

我们应该在房子顶部建一个天文台，配备一台超高率望远镜，样我们就可以观察天空了。

While other scopes at the time were lucky to get 50-times magnification, Van Leeuwenhoek's had up to 270-times magnifying power, identifying things as small as one thousandth of a millimeter.

虽然当时其他瞄准镜幸运地获得了 50 放大率，但范·列文虎克瞄准镜具有高达 270 放大率，可以识别小至千分之一毫米物体。

Plus, it's a macro lens providing 0.5x magnification, so we can get really close to our tiny subjects and make them feel really big in our photos.

此外，它还是一支微距镜头， 提供0.5放大率，让我们能够极其贴近微小拍摄对象， 在照片中赋予它们宏大视觉效果。

For telescopes and microscopes, the ability to resolve an image becomes more difficult as the magnification gets higher, because the diffraction patterns that they create are magnified, too.

对于望远镜和显微镜而言， 随着放大率提高， 分辨图像能力会变得更加困难，因为它们产生衍射图案也会被放大。

After all of the like terms cancel out, you’re left with a magnification equation in terms of the focal lengths of the objective lens and the eyepiece.

在所有同类项抵消后，你将得到一个以物镜和目镜焦距表示放大率公式。

In order to find the magnifying power of the lens, you just divide the angle subtended by the virtual image by the angle subtended by your unaided eye.

为了求出镜片放大率 ，只需用虚 像对角除以肉眼对角。

After all of the like terms cancel out, you're left with a magnification equation in terms of the focal lengths of the objective lens and the eyepiece. .

在所有类似项抵消之后，就物镜和目镜焦距而言，您会得到 一个放大率方程。

We have the magnification equation, expressed in terms of subtended angles, but we can still use the equations in terms of distance and height for both objects and images.

我们有放大率公式， 它是用张角表示，但我们仍然可以使用以距离和高度表示对象和图像公式。