Canon RF 135mm f/1.8 L IS USM
The RF 135mm f/1.8 L IS USM is a high-performance RF luxury L-series prime lens engineered for Canon EOS R system mirrorless cameras. Features USM autofocus, optical image stabilization, and premium optical coatings.
Whether you're a seasoned professional or an enthusiast stepping up, the Canon RF 135mm f/1.8 L IS USM offers a compelling balance of performance and utility. Its ultra-fast f/1.8 maximum aperture provides a significant advantage for low-light shooting and subject isolation.
In real-world use, this lens delivers reliable performance. Driven by Canon's proven USM motor, autofocus is swift and decisive. Its built-in optical image stabilization (5.5 stops standalone / 8.0 stops coordinated with IBIS) effectively mitigates camera shake, ensuring sharper handheld shots. As part of Canon's prestigious L-series, it features rugged, weather-sealed construction built to withstand the rigors of professional daily use. It features Canon's Air Sphere Coating, virtually eliminating flare and ghosting when shooting into backlit golden-hour light. Specialized UD (Ultra-Low Dispersion) glass elements are employed, delivering edge-to-edge contrast and color accuracy.
For working professionals, the RF 135mm f/1.8 L IS USM represents a top-tier optical investment, delivering uncompromising edge-to-edge sharpness compared to standard alternatives. It is an ideal companion to a 24-70mm standard zoom.
✅ Strengths
- Professional L-series weather-sealed construction with dust and moisture resistance
- Optical image stabilization (5.5 stops standalone / 8.0 stops coordinated with IBIS)
- Fast f/1.8 aperture for exceptional low-light performance and shallow depth of field
- Customizable Control Ring for aperture, ISO, or exposure compensation
⚠️ Considerations
- Substantial weight (935 g (33.0 oz)) may require monopod or tripod support
- Large 82 mm front filter thread increases accessory costs
Full Technical Specifications
| Lens Model | Canon RF 135mm f/1.8 L IS USM |
| Lens Mount | Canon RF |
| Sensor Format | Full Frame |
| Optical Construction | 17 elements in 12 groups |
| Special Glass & Optics | 3 Ultra-Low Dispersion (UD), Air Sphere Coating, Custom Function Buttons |
| Min. Focus Distance | 0.70 m (2.30 ft) |
| Max. Magnification | 0.26x |
| Image Stabilization | 5.5 stops standalone / 8.0 stops coordinated with IBIS |
| Diaphragm Blades | 9 |
| Autofocus Motor | USM |
| Filter Diameter | 82 mm |
| Dimensions (D × L) | 89.2 mm (3.51 in) × 130.3 mm (5.13 in) |
| Weight | 935 g (33.0 oz) |
| Lens Hood | EW-88B |
| Release Date | 2022-11-02 |
| Series Classification | L-Series |
| Estimated MSRP | $1,899 |
Features & Optical Technology
Recommended Photography Genres
Frequently Asked Questions
Q: Is the RF 135mm f/1.8 L IS USM weather sealed?
A: Yes, as an L-series lens, it features professional-grade weather sealing with dust and moisture resistance, making it suitable for challenging environmental conditions.
Q: What size filter does the RF 135mm f/1.8 L IS USM use?
A: The lens features a 82 mm front filter thread. Any circular filters (like UV, CPL, or ND) will need to match this 82 mm diameter.
✓ Includes configurable electronic Control Ring for aperture, ISO, or shutter speed.