Canon RF 45mm f/1.2 STM
7198C002
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Description
Light and Affordable
The RF45mm F1.2 STM combines a large RF mount with a short back focus and advanced digital correction. A compact, affordable lens that still delivers the stunning F1.2 performance you expect
Fastest Wide Open
The wide F1.2 aperture creates stunning bokeh, making subjects pop with a three-dimensional effect. And thanks to the fast aperture, it shines in low light, allowing you to capture action at faster shutter speeds.
Tech, Meet Optics
Canon’s first use of a PMo aspheric lens in an F1.2 design helps minimize aberrations for sharper, more accurate images. Combined with the RF mount’s large diameter and short back focus, this allows for a compact build without sacrificing optical performance.
Step in and Focus with Confidence
The RF45mm F1.2 STM uses a gear-type STM motor paired with a magnetic detection system for smooth, precise autofocus. This keeps the lens compact and lightweight while ensuring your subject stays sharp, even in challenging lighting or fast-paced shooting.
What You See, I See
The 45mm focal length is like seeing how you see with the naked eye, giving you a natural perspective and framing that feels just right.
Control at Your Fingertips
A dedicated customizable control ring on the front of the lens lets you assign functions like ISO, White balance, etc. for quick adjustments during shooting.
Technical Data
| Canon RF45mm F1.2 STM – Specifications | |
|---|---|
| Focal Length | 45mm |
| Maximum & Minimum Aperture | F1.2 – F16 |
| Lens Mount Type | RF Mount (Metal Mount) |
| Compatible Cameras | Canon EOS R-series (full-frame and APS-C) |
| Minimum Focusing Distance | 0.45 m / 1.5 ft |
| Maximum Magnification | 0.13× |
| Field of View at Minimum Focus Distance | 10.4 × 6.9 in. (263 × 175 mm) |
| Angle of View (Diagonal) | 51° 20′ |
| Optical Design | |
| Lens Construction | 9 elements in 7 groups |
| Special Elements | 1 Aspheric element |
| Lens Coating | SSC (Super Spectra Coating) |
| Filter Size Diameter | ø67 mm |
| Aperture Blades | 9 (circular diaphragm) |
| Image Stabilization | None |
| Focusing | |
| Focusing Drive System | STM (Stepping Motor) |
| Full-time Manual Focusing | Yes |
| Dual Pixel CMOS AF Coverage (H × V) | Approx. 100% × 100% (whole-area subject detection); approx. 90% × 100% (manual AF area positioning) |
| Exterior Design | |
| Control Ring | Available, with click-stops |
| Manual Focus Ring | Available |
| AF / MF Switch | Available |
| Iris Ring | Not provided |
| Lens Function Button | Not provided |
| Distance Scale | None (electronic distance scale available on compatible EOS R cameras) |
| Distance Limiter Switch | Not provided |
| Dust / Weather Resistant Construction | Not provided |
| Dimensions & Weight | |
| Max Diameter × Length | 3.1 × 3.0 in. (78 mm × 75 mm) |
| Weight | 12.2 oz / 0.76 lb / 346 g |
| Accessories | |
| Lens Hood | Canon ES-73B (bayonet mount, reversible) |
| Lens Cap | Canon E-67II (included) |
| Dust Cap | Canon Lens Dust Cap RF (included) |
| Lens Case | Canon LP1116 (sold separately) |
| Extension Tubes | Not compatible |
| Close-up Lenses 250D / 500D | Not compatible |
| RF Extender 1.4x / 2x | Not compatible |
| Gelatin Filter Holder III / IV | Not compatible |
| Rear Gelatin Filter Holder | |