By searching around holography sites, I've learned that the plates are red-sensitive (almost into short IR!) and almost green-blind. So DBI looks like the way to go.
They also resolve 3000 lppm, although no lens can produce that resolution. But the resolution has to be around the wavelength of light for holography, so that shouldn't have been a surprise to me (600nm = 0.6 micrometer = 6/10000 mm, or 1666 lpm, 3333 lppm).