Canon CN-E 18-80mm T4.4 L IS KAS S EF

Canon CN‑E 18‑80 mm T4.4 L IS KAS S (EF-mount cinema zoom) lens:

Key Specifications

• Mount: EF.

• Coverage: Super 35 (suitable for S35/APS-C sensors)

• Focal length: 18–80mm (zoom ratio 4.4×)

• Maximum relative aperture (T-stop): T4.4 (equivalent to approx. f/4) throughout the zoom range.

• Minimum focusing distance: 0.5 m (≈1.7 ft) from image plane.

• Iris (aperture) blades: 9 blades for smooth out-of-focus/bokeh rendering.

• Angle of view (at Super 35/1.78:1):

  • Wide (18mm): 68.7° × 41.9°

  • Tele (80mm): 17.5° × 9.9°

• Physical dimensions: approx. 93.4 mm (W) × 107.2 mm (H) × 182.3 mm (L).

• Weight: approx. 1.2 kg (including servo unit)

• Front diameter: Ø84 mm; Filter thread: Ø77 mm.

• Additional features:

  • Built-in servo zoom/iris for cinema-style operation.

  • Reduced focus breathing (designed for video/4K use).

Usage Notes & Remarks

• This is a cinema/servo zoom lens (“COMPACT-SERVO” series) designed with video productions in mind — for handheld, shoulder-mounted or rig use.

• Because it covers Super 35 sensors (rather than full-frame), when used on full-frame sensors you may get vignetting unless in crop mode or using a smaller sensor region.

• Having T4.4 as a constant T-stop is beneficial for consistent exposure during zooming — useful in video workflows.

• The weight and size are quite modest for a cinema servo lens, so it’s relatively mobile compared to larger cinema zooms.

• The inclusion of servo zoom/iris and the gear modules means it’s well suited for professional rigging, gimbals or motorised setups.

• Ensure compatibility with your camera’s mount and servo/zoom controls; also check power requirements and physical balance especially for handheld/gimbal work.