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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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THE NEW STANDARD
The RF 50mm F1.8 STM is a compact RF prime lens with a fast f/1.8 aperture capable of high quality images. The lens is small, light and quiet thanks to a redesign of optics for its RF mount and STM motor and ideal for exploring your creativity.
Wide aperture creativity
Create artistic and impactful images at lower ISO thanks to a wide f/1.8 aperture that achieves sharp focus on a subject yet delivers a beautiful blurred background.
Sharp, quiet focusing
The STM (Stepping Motor) technology focuses very smoothly and in near-silence, ideal for stills and video. Super Spectra Coating on the lens elements ensure quality.
Compact and lightweight
At 160g and 40.5mm, it is a highly compact and lightweight partner for your day-to-day shooting with EOS R-series cameras, with no adapter required.
Considered design
Very discreet with a combined focusing and control ring for intuitive control, the lens has a 7-blade circular aperture for superb bokeh and focuses to 0.3m.
Creativity at lower cost
The RF 50mm F1.8 STM offers an affordable way to explore greater creativity, and is a great choice for ambient light portraits with a natural, flattering perspective.
Key specifications:
| Image Size | Full Frame |
|---|---|
| 35mm film equivalent focal length (mm) | 50mm |
| Angle of View (horizontal, vertical, diagonal) |
40°00′, 27°30′, 46°00′ |
| Lens Construction (elements/groups) | 6 / 5 |
| No. of Diaphragm Blades | 7 |
| Minimum Aperture | 22 |
| Closest Focusing Distance (m) | 0.30 |
| Maximum Magnification (x) | 0.25 |
| Distance Information | Yes |
| Image Stabilizer | No |
| Af Actuator | STM |
| Dust/Moisture Resistance | - |
| Filter Diameter (mm) | 43*1 |
| Max. Diameter x Length (mm) | 69.2 x 40.5 |
| Weight (g) | 160 |
| Lens Cap | E43*2 |
| Lens Hood | ES-65B*3 |
| Lens Case / Pouch | LP1014*4 |
| Rear End Cap | Lens Dust Cap RF*5 |
| Extender Compatibility | No |
1.
Only 1 filter should be used at any given time. The Canon close-up lenses 250D / 500D and the Canon circular polarizing filter PL-C B are not compatible.
2.
Center pinch type, bundled with lens
3.
Not bundled, available as optional accessory separately
4.
Not bundled, available as optional accessory separately
5.
Bundled with lens