Camera Tech Guides
Lens Crop Factors to compare Field of View:
Full Frame DSLR lenses on a Super 35mm sensor - crop factor = 1.5x
example: the DSLR zoom Canon 24-70mm f2.8 on a Digital Cinema video camera would have a field of view similar to a Cinema zoom of 36-105mm f2.8
The Sony full frame zoom PZ 28-135mm f4 has an effective viewing angle of a 42-202mm zoom on a Sony FS7.
link to Abel Cine Field of View calculator for popular Digital Cinema cameras