“为保证价格低廉，我们设计的镜头不能完全矫正畸变或其他失常。” 他说。

"To keep the cost down we went with lenses that aren't corrected for many aberrations, " he says.

youdao

我希望这一镜头会鼓励对这一话题的更多想法，支持父母做出决定，提供信息来使之成为一种安全，价格低廉，快乐的经历。

I hope that this lens will encourage thought about this issue, give parents some support in making the decisions and provide information to make this a safe, inexpensive and happy experience.

youdao

50mm定焦镜头在较大价格范围内的平均光圈是F1.4，便宜的（镜头）光圈为F1.8，较贵的（镜头）光圈为F1.2。

The 50mm prime on average allows an aperture around F1.4 on a mid ranged price lens, F1.8 on the cheaper ones and F1.2 on the pro series.

youdao

So a number of you, even if the price was just a tiny bit different might have a preference for one rather than the other, so without getting in trouble by putting the camera on you, how many of you would have a preference, if the prices were essentially the same how many of you would have a strict preference for Pepsi?

那么你们中的很多人,尽管价格只有一点点不同,也许还是倾向于其中一个产品,不让你们上镜头而招来麻烦,你们谁会有倾向,如果价格差不多,谁会倾向选择百事可乐

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