I would also really love to have this support! Particularly camera, lens, focal length, and shutter speed can be really useful for photographers. Focal length and focal distance could even be used to measure the size of the organism for macro photos.
People have even built HTML scrapers to get this information, which certainly puts more load on iNaturalist than a dedicated API: https://forum.inaturalist.org/t/inaturalist-org-started-ignoring-authentication-by-jwt-token-resovled/59359