There are two camera attachments. The first is an optical telephoto lens that adds 3x capability by snapping it over the camera. Physics supports this, but I was surprised to see the images inverted. This is normal when using a magnifying lens like this, but I would have thought that Tecno could fix it in the software. There's also no ultrawide camera module, which surprised me.
needs to do non-trivial computation (assuming we also get rid of dot，这一点在体育直播中也有详细论述
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To build an understanding of performance properties you have to look at the actual thing behind the abstraction and understand how it's implemented.