asafira 3 days ago

I did my PhD in Atomic, Molecular, and Optical (AMO) physics, and despite "optical" being part of that I realized midway that I didn't know enough about how regular cameras worked!

It didn't take very long to learn, and it turned out to be extremely important in the work I did during the early days at Waymo and later at Motional.

I wanted to pass along this fun video from several years ago that discusses HDR: https://www.youtube.com/watch?v=bkQJdaGGVM8 . It's short and fun, I recommend it to all HN readers.

Separately, if you want a more serious introduction to digital photography, I recommend the lectures by Marc Levoy from his Stanford course: https://www.youtube.com/watch?v=y7HrM-fk_Rc&list=PL8ungNrvUY... . I believe he runs his own group at Adobe now after leading a successful effort at Google making their pixel cameras the best in the industry for a couple of years. (And then everyone more-or-less caught up, just like with most tech improvements in the history of smartphones).

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spookie 2 days ago

Try capturing fire with a non-Sony phone and a Sony phone. At least Samsung doesn't color correct blackbodies right and the flame looks nothing like reality.

bigtones 2 days ago

That Kevin Chen video using Excel was amazing and hilarious. Thanks.

brcmthrowaway 2 days ago

Pixel camera hardware or software? Isnt there only one vendor for sensors - Sony?

dawidpotocki 2 days ago

Samsung also makes sensors for phones. IIRC some Pixels use their sensors.

hypercube33 2 days ago

I think Canon makes at least some of their sensors, and Nikon designs theirs and makes it at a third party I forget the name of that isn't Sony or Samsung but they still do use Sony stuff in a lot of their cameras.

I don't know about Pentax, Panasonic or OMD (formerly Olympus)

lambdasquirrel 1 day ago

I think folks here have some idea how expensive chip fabs are. That's why only Canon is able to make their own sensors.

Sony makes sensors for pretty much everyone else. But it's well known that other folks e.g. Nikon have been able to get better signal-to-noise with Sony-made sensors than Sony themselves. I think Panasonic used to make their own sensors but with some recent re-org, that got spun out.

It's been widely rumored that Leica uses Sony sensors, but this gets repeatedly denied by people claiming inside information. We know that Leica was getting 24MP CMOS sensors from CMOSIS in the 2012 timeframe, but CMOSIS has since been acquired by OSRAM, and there hasn't been any verifiable information since then, whether confirming or denying a continued business relationship.

xattt 2 days ago

Is Sony the ASML of the sensor world?

brcmthrowaway 2 days ago

Definitely

asafira 2 days ago

He worked mostly on the software side, but of course had important input into what sensors and processors were chosen for the phones.