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Fast & Reliable Availability
We distribute our stock across multiple warehouses to ensure quick processing and delivery.
Need something urgently for Click & Collect?
If an item shows as in stock, please call us on 01442 292929 or email sales@proav.co.uk to confirm availability before visiting.

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With its natural perspective, super-fast f/1.2 aperture and lightweight build, the RF 45MM F1.2 STM is unlike any other lens in the Canon RF range. Its ground breaking design offers depth-of-field control and creative freedom in low light, and it’s the first Canon RF f/1.2 autofocus lens to weigh under 400g. High-quality details – including a metal mount, 9-blade aperture and dedicated focus and control rings – make it a powerful, portable choice for photographers who value precision and expression without the professional price tag.
The RF 45mm F1.2 STM also has a convenient 67mm filter size and a minimum focusing distance of 45cm, giving creatives the freedom to fine-tune their results. This new lens also features a durable metal mount and is compatible with Canon’s focus breathing correction technology, all working together to deliver lasting performance and stunning results.
The RF 45MM F1.2 STM is a lightweight, competitively priced entry point into fast-aperture photography, and sits in Canon’s range of enthusiast RF lenses
With its natural perspective, super-fast f/1.2 aperture and lightweight build, the RF 45MM F1.2 STM is unlike any other lens in the Canon RF range. Its ground breaking design offers depth-of-field control and creative freedom in low light, and it’s the first Canon RF f/1.2 autofocus lens to weigh under 400g. High-quality details – including a metal mount, 9-blade aperture and dedicated focus and control rings – make it a powerful, portable choice for photographers who value precision and expression without the professional price tag.
The RF 45mm F1.2 STM also has a convenient 67mm filter size and a minimum focusing distance of 45cm, giving creatives the freedom to fine-tune their results. This new lens also features a durable metal mount and is compatible with Canon’s focus breathing correction technology, all working together to deliver lasting performance and stunning results.
The RF 45MM F1.2 STM is a lightweight, competitively priced entry point into fast-aperture photography, and sits in Canon’s range of enthusiast RF lenses
Super-fast f/1.2 maximum aperture
Experience greater creative control with a low aperture lens that delivers beautifully shallow depth of field and brilliant low-light performance.
Take your photography further
Explore new ways of shooting using a lens that’s designed to deliver real value and brings advanced techniques and expressive images within easy reach.
Reliable autofocus for wide-aperture shots
Capture the moment with precision, even when working with a shallow depth of field. Canon’s STM AF technology stays locked on your subject, so you can focus on composition.
Compact 45mm prime lens for everyday use
A fast lens that won’t slow you down, the RF 45MM F1.2 STM is the first Canon RF f/1.2 lens weighing less than 400g. With its constant length and lightweight build, it’s a balanced choice for both photography and video.
Designed for versatile shooting
With separate focus and control rings, a convenient 67mm filter size and a minimum focusing distance of just 45cm, this versatile lens lets you fine-tune your vision and capture impressive detail up close.
Specialist build quality
Enjoy lasting performance thanks to a metal mount that securely connects to your EOS R System camera. Features include a 9-blade aperture, aspheric lens element, Super Spectra coating and focus breathing correction when used with a compatible camera.
| Image size | Full Frame |
|---|---|
| Angle of view(horzntl, vertl, diagnl) | 49° 35', 29° 50', 51° 20' |
| Lens construction(elements/groups) | 09-Jul |
| Special optics | 1x PMo Aspherical |
| No. of diaphragm blades | 00:00 |
| Minimum aperture | 16 |
| Closest focusing distance(m) | 0.45 |
| Maximum magnification (x) | 0.13 |
| Control Ring | Yes |
| Image stabilizer IBIS x OIS1 | Center 8.0 stops |
| Corner 7.5 stops | |
| AF actuator | STM |
| Coatings | Super Spectra |
| Fluorine | No |
| PHYSICAL SPECIFICATIONS | |
| Dust/moisture resistance 3 | No |
| Filter diameter (mm) | 67 |
| Max. diameter x length (mm)2 | 78 x 75 |
| Weight (g) | 346 |
| ACCESSORIES | |
| Lens cap | E-67II |
| Lens hood | ES-73B |
| Lens case/pouch | LP1116 |
| Rear cap | Lens Dust Cap RF |
| Extender Compatiblity | Not Compatible |
| Footnotes: | |
| [1] | Tested under CIPA standards / CIPA-2024 standard (in the yaw/pitch directions at maxim um |
| focal length, with a specific camera) | |
| [2] | Lens dim ensions when in retracted state |
| [3] | Lenses with dust/moisture resistance are fitted with a rubber ring on the lens mount which |
| may cause slight abrasion of the camera m ount. This in no way effects either the lens or | |
| camera perform ance |