Re: Difference between Full Frame & Super 35 Sensor?
 

So based on the various discussions of sensor size. I’m guessing that the new Canon COMPACT-SERVO 18-80mm T4.4 EF Cinematic zoom which is designed for S35 type lens coverage should almost work perfectly on the new Canon EOS 1DX Mark II when shooting in 4K video mode. Here is the reason:

Canon 4K area size pulled from central portion of Canon’s full frame sensor
26.9 mm x 14.2 mm

Super-35 Sensor size lens coverage area
24.9 mm x 14 mm

See Canon Lens spec from their Brocchure here:

Minimum Object Distance from Image Sensor
0.5m (1.7 ft.)
Object Dimensions at M.O.D.
Aspect Ratio 1.78:1
Dimensions 24.6 × 13.8mm
43.4 × 24.3cm at 18mm
9.5 × 5.3cm at 80mm
Aspect Ratio 1.9:1
Dimensions 26.2 × 13.8mm

Any thoughts?