Why Your Webcam Still SUCKS!
Techquickie1 HN recommenders · 2020–2020
552K views · explainer · dated · Uploaded 2020-02-18
A short Techquickie explainer on why laptop webcams are much worse than phone cameras. It covers sensor size, image processing, and the interface differences between laptops and phones, with input from a Logitech engineer.
HN commenters link it when webcam quality comes up, as a quick rundown of why laptop webcams lag behind phones.
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3 comments from Hacker News
This might shed some light as to why: [VIDEO] tl;dr: phone webcams have DMA, laptop webcams are using USB.
It's because the standard webcam interface is based on a slow USB 2 interface which can only support enough bandwidth for 720p video. To upgrade your webcam, laptop manufacturers would need to make significant changes to both the interface and the operating system. Add that onto the lack of economic incentive, it's just not worth the cost. Here's a good video that gives a run down: [VIDEO]
A lot of it has to do with how laptop web cams work in general and it is not only Apple's problem [1]. A way to improve this situation a bit would be to be able to use the camera of an iPhone as a web cam, either over USB or wifi. You still have the compression and USB transfer, but at least you use the better optics of the phone. There are third party tools, such as EpocCam, that can do it, but require the installation of drivers. This should be a first party solution, in the same fashion as the "take photo" option from the right click menu on Mac OS, which uses an iPhone to take a photo and paste it directly on the open application of the computer. [1] [VIDEO]