Canon CN30x40 IAS J R1/P1 Cine Servo Lens for Canon RF

What’s new?

The Canon CN30x40 IAS J R1/P1 extends Canon’s ultra-telephoto cine zoom range with a 30x optical system covering 40-1200mm, expanding to 60-1800mm via an integrated 1.5x extender. This extended optical design maintains resolution and contrast across the full zoom range, allowing consistent image quality when reframing distant subjects. Native Super35 coverage, combined with extender-enabled full-frame operation, increases format flexibility without changing lenses.

Operationally, the lens introduces refined drive unit control for zoom, focus, and iris, improving repeatability during remote or rig-based setups. RF and PL mount configurations support system integration, while lens metadata output enables real-time correction and VFX alignment. The lightweight yet rugged construction supports transport and repeated deployment, marking a notable step forward in long-range cine zoom capability.

Super35 coverage and focal range

The CN30x40 uses a 30x optical zoom combined with a built-in 1.5x extender to deliver extended focal coverage. The base range of 40-1200mm expands to 60-1800mm when the extender is engaged, while simultaneously increasing the image circle to support full-frame sensors in addition to Super 35mm and APS-C formats. This optical configuration enables a single lens to cover ultra-telephoto framing without changing lenses. The extended reach supports applications such as wildlife and sports, where subject distance changes rapidly and repositioning is limited.

Aperture and optical design

The optical system incorporates an 11-blade iris diaphragm, producing a near-circular aperture across the range. This design creates smooth defocus transitions and evenly rendered highlights, with the odd blade count preventing overlapping diffraction patterns and producing a softer light falloff in bright areas. The new optical design reduces focus breathing, limiting changes in angle of view during focus adjustments, maintaining consistent framing during focus pulls.

The use of large-diameter aspherical elements and anomalous dispersion glass reduces chromatic and spherical aberrations across the zoom range. This results in consistent resolution from centre to edge, supporting 8K image capture without visible degradation at longer focal lengths. By reducing ghosting, flare, and colour bleeding, the lens maintains tonal separation in high-contrast scenes, supporting extended dynamic range capture.

Drive unit and servo control

The CN30x40 features a newly developed digital drive unit derived from existing Cine-Servo designs, with improved internal control systems. Enhanced servo performance increases responsiveness in both zoom and focus operations, enabling faster movement speeds during live production.

The drive unit includes an integrated information display and a USB Type-C interface, enabling firmware updates, lens configuration, and data management without additional hardware. Users can export and import lens settings, reducing setup time when switching between rigs or operators. Focus breathing correction is integrated into the drive system, using coordinated zoom adjustments to maintain framing consistency. This combination of optical and electronic correction provides more predictable results during operation, particularly in long zoom scenarios.

Mount options and data integration

Available in RF and PL mount configurations, the lens supports integration across a wide range of cinema systems. This mechanical compatibility ensures secure mounting and consistent communication between lens and camera. Lens metadata output provides real-time information for distortion, peripheral illumination, and positional data. This enables accurate correction and alignment in virtual production and VFX workflows, reducing manual intervention during post-production.

Handling and physical design

The CN30x40 maintains the same physical dimensions and weight as the previous model, using a consistent mechanical structure to preserve rig balance despite the increased magnification. At 405.2mm in length and 6.6kg in weight, the lens distributes mass evenly, resulting in stable mounting behaviour on tripods and broadcast-style supports. The rugged housing protects internal components during repeated use, maintaining alignment and performance over time. This ensures reliability when deployed across multiple locations or extended production schedules for wildlife shoots, live events, or broadcast applications.

What’s in the box?

• 1 x Canon CN30x40 IAS J R1/P1 Cine Servo Lens for Canon RF