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Canon RF 50mm f/1.8 STM Prime Lens

Canon RF 50mm f/1.8 STM Prime Lens

Product Code: 1242101L

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The Canon RF 50mm f/1.8 is a compact and lightweight prime lens for day-to-day shooting with EOS R mirrorless cameras, providing accomplished images and videos yet weighs 160g and is only 40.5mm long.


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We Love

  • Extremely compact and lightweight prime lens which allows for discreet shooting anywhere
  • Sharp results across the frame thanks to an advanced aspherical lens element and Super Spectra Coating
  • Fast AF with near silent subject acquisition through the addition of an STM Motor
  • Versatile focal width which provides flattering results for naturally lit portraits and street scenes
  • Bright aperture works well for allowing shooting to continue even as light levels fade
Reasons to buy from Park Cameras

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Canon RF 50mm f/1.8 STM Lens Summary

This addition to the growing Canon mirrorless lens line-up comes in the form of a highly compact and lightweight RF 50mm f/1.8 STM prime lens. Weighing just 160g and measuring only 40.5mm long allows this standard focal width lens to be carried anywhere easily and discreetly. The 50mm length is suitable for the day-to-day shooting of many subjects including street photography, portraits, travel and much more. Despite the attractive price point the lens is capable of producing accomplished images and video, even in low light thanks to the suitably fast f/1.8 aperture. This allows the user to isolate their subject with a thin focal plane and continue to shoot even as light fades.

Highlight features:

  • STM Motor
  • Wide f/1.8 aperture
  • Aspheric lens element
  • Compact design
  • Super Spectra Coating

The STM motor in this model delivers fast, near silent focus capabilities which are compatible with Canon’s latest AF systems. A considered optical design for enthusiasts provides six elements including an aspherical lens which can capture sharp images across the full frame, whilst the combined focus and control ring provides users with intuitive control.

Canon RF 50mm f/1.8 STM Lens In Detail

  • Image Size: Full Frame
  • 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: f/22
  • Closest focusing distance (m): 0.3m
  • Maximum magnification (x): 0.25
  • Distance Information: Yes
  • Image stabiliser: N/A
  • AF actuator: STM

Physical Features

  • Dust/moisture resistance: NA
  • Filter diameter (mm): 43mm
  • Max. diameter x length: 69.2 x 40.5mm
  • Weight: 160g
  • Extender Compatibility: No

What’s in the box

  • Canon RF 50mm f/1.8 STM Lens
  • Lens Cap E43
  • Rear End Cap

Optional Accessories

Canon RF 50mm f/1.8 STM Lens Sample Images:

canon EOS R5 with 50mm

Canon EOS R5 camera body


1/250 sec


ISO 200

canon EOS R5 with 50mm

Canon EOS R5 camera body


1/250 sec


ISO 200

canon EOS R5 with 50mm

Canon EOS R5 camera body


1/160 sec


ISO 100

canon EOS R5 with 50mm

Canon EOS R5 camera body


1/125 sec


ISO 1250

Offers: Bundles
Offer Category: Camera Lenses
Offer Product Type: Canon Mirrorless Lenses
Autofocus: Yes
Aperture ring: N/A
Constant Aperture: Yes
Lens CIPA Image stabilization rating: N/A
Colour: N/A
Diameter (mm): 69
Length (mm): 41
Weight (g): 19595
Distance scale: N/A
DoF scale: N/A
Elements: 6
Environmental Sealing: N/A
Focus distance limiter: N/A
Focal length: 50 mm
Focus method: N/A
Filter Thread: N/A
Full time manual: N/A
Groups: 5
Hood supplied: N/A
Lens Image stabilization: N/A
Lens mount: N/A
Lens Materials: N/A
Maximum focal length: 50
Maximum magnification: 0.25
Maximum aperture (number): 1.8
Maximum aperture (text): N/A
Max Format size: N/A
Minimum focal length: 50
Lens Minimum focus distance (m): 0.3
Minimum aperture (number): 22
Minimum aperture (text): N/A
Motor type: N/A
Number of diaphragm blades: 7
Power zoom: N/A
Special elements / coatings: 1 aspherical element + Super Spectra Coating
Tripod collar: N/A
Lens type: N/A
Wide/Tele: N/A
Lens Level: N/A
Best For: N/A
Best For Holiday and Landscape: Yes
Best For Interior and Architecture: N/A
Best For Fashion and Portrait: Yes
Best For Macro and Still Life: N/A
Best For Astro: Yes
Best For Street: N/A
Best For Wildlife and Sport: N/A
Zoom lock: N/A
Zoom method: N/A
Notes: N/A

Looking to sell your Canon RF 50mm f/1.8 STM Prime Lens?

Our Verdict

Enthusiast mirrorless EOS R system photographers and videographers gain a desirable option with addition of this Canon RF 50mm f/1.8 STM lens. Despite being at the affordable end of the spectrum the lens delivers sharp, well controlled images and is suitable for an endless choice of subjects. 50mm is often the preferred width for many photographers as it provides results similar to that of the naked eye with a standard focal width. For this reason it is particularly suited to ambient light portraits, delivering a natural, flattering perspective as can be seen in the sample images.

Autofocus is swift and accurate with the STM motor which makes full use of Canon’s latest AF algorithms. Whilst not as bright as it’s more expensive RF 50mm f/1.2 L USM stablemate, this model is more than capable of working consistently as light levels fade thanks to the f/1.8 aperture.

Where this option excels is with its' size and weight, which are amongst the lightest options produced for Canon RF mount. These make it highly portable and compact, ideal where discretion is required such as during a ceremony, concert or on the street. We have no hesitation in believing that many Canon users will enjoy the RF 50mm f/1.8 whilst exploring their creativity through photos and videos on any full frame body including EOS R5 and EOS R6 camera bodies.

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Condition guide

Our used products are subject to wear and tear in comparison to brand new products. This also applies to accessories that are supplied with the camera including batteries which may have a lower optimum performance level/life expectancy.

  • Like New – The equipment is in a condition as if you have just bought it from the manufacturer. The item is still considered to be ‘Like New’ even without the original packaging and accessories. The product has been fully tested and is in perfect working order. Lenses are optically clear. There may be light dust present that will not effect the imagery.
  • Excellent – The equipment should be close to being ‘Like New’ but there may be some small cosmetic blemishes that lower its grade. The product has been fully tested and is in perfect excellent order.
    • Cameras – Should have no marks on the LCD screen
    • Lenses – Should have no marks on the elements and optically clear. There may be light dust present that will not effect the imagery.
  • Very Good – The equipment may have some slight cosmetic wear to the paintwork and cosmetic blemishes  with only light signs of use and the product has been fully tested and is in great working order.
    • Cameras – The LCD screen may have small signs of wear that does not affect its display
    • Lenses – The mount of the lens will start to show signs of wear
  • Good – The equipment is showing more obvious signs of cosmetic wear and blemishes, but the product has been fully tested and is in great working order.
    • Cameras – LCD screen may have scratches or wear that is starting to affect the display.
    • Lenses – May have slight dust inside that does not affect images. The mount shows signs of use.
  • Well Used – The equipment will show significant signs of wear. The paintwork will be coming away in large areas exposing the metal work, but the product has been fully tested and is in great working order.
    • Cameras – LCD screen is heavily worn either by de-lamination or has scratches to it. Rubber grips are starting to come away from the body.
    • Lenses – The lens has dust inside that may affect images. The rubber zoom/focus ring is coming away from the barrel of the lens.

*All of our used items are listed with the accesories that are included. If they are not listed then they will not be supplied at eh epoint of purchase.

Used team

Peace of mind with our 6 month warranty

This product has been thoroughly tested by our team of photographers and we are happy to give a 6 month warranty as a result. The number of tests depends on the individual product but we are confident in this product having tested all the major functions. Anything that isn’t as you would expect, we then make a note of and show this in the condition notes on the page.

So you can be confident you are buying a great piece of kit that’s been looked after by a fellow photographer and seen many extraordinary sights, tested by our team of photographers and now looking forward to being set free to capture more great images!

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