The Canon CN-E45-135mm T2.4 L FP is a cinema lens designed for professional filmmakers and cinematographers. When paired with the EF-EOS R 0.71X mount adapter, it is optimized for use with Canon’s EOS R-series cameras, such as the Canon EOS R5 or R6, and also works with EF-mount cameras.
Canon CN-E45-135mm T2.4 L FP
- Focal Length: 45mm to 135mm
- Maximum Aperture: T2.4 across the zoom range
- Lens Mount: Canon EF Mount (compatible with EF-mount cinema cameras and the Canon EF-EOS R 0.71X mount adapter for EOS R-series cameras)
- Optical Design: 20 elements in 14 groups
- Focus Mechanism: Manual focus with a long rotation for precise control
- Minimum Focus Distance: 1.2m (3.94 ft)
- Maximum Magnification: 0.25x
- Lens Coating: Canon’s proprietary lens coatings to reduce flare and ghosting
- Front Filter Size: 114mm
- Dimensions: Approx. 140mm (Diameter) x 190mm (Length)
- Weight: Approx. 2.57 kg (5.66 lbs)
- Mount Type: Canon EF (but compatible with EF-EOS R 0.71X adapter for mirrorless cameras)
Canon EF-EOS R 0.71X Mount Adapter
- Purpose: The adapter is used to mount Canon EF lenses on Canon EOS R-series mirrorless cameras, while also providing a 0.71x focal length reduction (which effectively increases the lens’ field of view).
- Focal Length Effect: The 0.71x adapter provides a wider angle of view compared to the EF-mount lens on full-frame mirrorless cameras (for example, turning a 45-135mm lens into a 31.95–95.85mm lens).
- Aperture Adjustment: The adapter allows for seamless electronic control of aperture between the lens and the camera body.
- Autofocus/Control: Retains full electronic functionality for autofocus, aperture control, and image stabilization (if applicable).
Key Features and Benefits
- Cine Lens Design: The CN-E45-135mm T2.4 is part of Canon’s CN-E series cinema lenses, which are built for high-end video production. It offers smooth and precise manual focus, mechanical iris control, and robust construction designed to withstand the rigors of professional filmmaking.
- Large Aperture: T2.4 aperture offers shallow depth of field, ideal for achieving cinematic bokeh effects and allowing more light in low-light situations.
- Zoom Range: The 45-135mm zoom range is versatile for various cinematic shots, from wide to medium telephoto.
- Color Matching: Canon’s CN-E lenses are designed to match with other Canon cinema lenses, providing consistent color rendering across the lens set.
- Smooth Focus Breathing: Minimal focus breathing, which is important for cinematic video work, ensures that the field of view doesn’t shift dramatically when focusing.
- Full-frame Coverage: The lens is designed for full-frame sensors and provides a true cinematic look with consistent performance throughout the zoom range.
Compatibility Notes
- The EF-EOS R 0.71X mount adapter allows EF-mount lenses to be used on Canon EOS R-series cameras (like the R5, R6, and R3) while reducing the crop factor and providing a wider field of view.
- With this adapter, users can achieve similar performance as using an RF lens without needing to purchase new lenses.
This combination of the Canon CN-E45-135mm T2.4 L FP lens and the EF-EOS R 0.71X mount adapter provides a highly versatile setup for filmmakers who require a full-frame cinematic zoom lens with compatibility for Canon’s mirrorless camera systems.
