I think the terms are confuse. When I see the camera zoom controls I see "Wide" and "Tele" instead of "Zoom In" or "Zoom Out" where are at the "Time Line" chart.
I think it is more understandable use Zoom In instead of Tele, and Zoom Out instead of Wide.
I have searched over the forum and I can't found a similar question about this issue.
Sorry if you can't understood my bad english.