>>3327457>Something about it allowing f/0.9 lenses or somethingYou have been reading too much Nikon tabloids.
https://www.adorama.com/mtk50mf095bk.htmlThis is old tech that has been available on the smaller E-mount since 2014.
The DSLRs have been missing out but it's still possible to make this lens on DSLR, the lens size will just have to be bigger and heavier.