I've been looking to buy "portrait focal length" cameras. You can get the AliExpress equivalent of a standard phone camera, dressed up as compatible to Raspberr

I've been looking to buy "portrait focal length" cameras. You can get the AliExpress equivalent of a standard phone camera, dressed up as compatible to Raspberry Pi, and somebody even brought wide-angles to that market once, but no-one seems to have the long focal lengths. Optics is weird. Either a device becomes a thing and then it's immediately a huge product, or the availability is straight up zero.