Canon has released a video detailing the history behind the Canon's CINI-SERVO 50-1000mm lens.
Canon USA states:
Cinematographer/filmmaker Ivo Norenberg approached Canon in 2010 with a request for an extreme lens. Ivo challenged Canon to produce a long zoom 4K Super 35mm lens tailored to the diverse needs of wildlife video production.
It may be a “bit” over the top, but it's an interesting video on a pretty amazing lens.
If you really want to make Craig's day, buy one here from B&H Photo video.