Canon RF 50mm f/1.4L VCM

2024 ~ today

Superb optics for everything.

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

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Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM (67mm filters, 20.5 oz./580g, 1.3'/15.7"/0.40m close focus, 0.15× macro ratio, $1,399). bigger.

I got mine at B&H. I'd also get mine at Adorama, at Amazon or at Crutchfield, or get it used if you know How to Win at eBay.

This 100% all-content, junk-free website's biggest source of support is when you use those or any of these links to my personally approved sources I've used myself for way over 100 combined years when you get anything, regardless of the country in which you live. Canon does not seal its boxes in any way, so never buy at retail or any other source not on my personally approved list since you'll have no way of knowing if you're missing accessories, getting a defective, damaged, returned, non-USA, store demo or used lens — and all of my personally approved sources allow for 100% cash-back returns for at least 30 days if you don't love your new lens. I've used many of these sources since the 1970s because I can try it in my own hands and return it if I don't love it, and because they ship from secure remote warehouses where no one gets to touch your new lens before you do. Buy only from the approved sources I've used myself for decades for the best prices, service, return policies and selection.

 

March 2025   Better Pictures   Canon Reviews   Mirrorless   RF Lenses   EF Lenses   Flash   All Reviews

RF 20mm f/1.4L VCM

RF 24mm f/1.4L VCM

RF 35mm f/1.4L VCM

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Sample Images       top

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

More samples throughout this review at Bokeh, Falloff, Macro, Spherochromatism and Sunstars.

These are just snapshots; my real work is in my Gallery. Ideally I would shoot this lens outdoors at night to take advantage of its f/1.4 aperture, but tough, it was cold and dreary outside in the middle of winter so here are sunny-day photos instead.

These are all shot hand-held at the lowest-quality JPG setting (Normal Large Quality 1), no tripods, no higher Quality settings or RAW CR3 files were used or needed.

Canon RF 50mm f/1.4L VCM Sample Image File

The Goddess of Speed Adorning a 1934 Packard Super 8 Roadster, 11:18 AM, Saturday, 22 February 2025. Canon EOS R5 II, f/2 for a soft background at 1/2,500 at Auto ISO 100 (LV 13.4), Radiant Photo software. bigger or camera-original 45 MP © 3 MB JPG file.

The blur circles are perfectly round; you can't see the 11-blade diaphragm at all and bokeh is beautiful.

 

Canon RF 50mm f/1.4L VCM Sample Image File

Porsche Carrera, 10:07 AM, Saturday, 11 January 2025. Canon EOS R5 II, f/4 at 1/125 at Auto ISO 100, -0.7 stops exposure compensation (LV 11.0, Radiant Photo software. bigger or camera-original 45 MP © 4 MB JPG file.

Depth-of-field is limited this close at f/4; very little of this is in focus when you peer at the camera-original 45 MP © 4 MB JPG file.

 

Canon RF 50mm f/1.4L VCM Sample Image File

Sunset, Fletcher Cove, 5:02 PM, Sunday, 12 January 2025. Canon EOS R5 II, f/16 for depth-of-field at 1/10 hand-held at Auto ISO 100, +0.7 stops exposure compensation (LV 11.4), Radiant Photo software. bigger.

Need to shoot at 1/10 hand-held for depth-of-field at clean ISO 100? Easy, if you have a stabilized camera!

 

Introduction       top

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

Adorama Pays Top Dollar for Used Gear

Amazon

B&H Photo - Video - Pro Audio

Crutchfield

I buy only from these approved sources. I can't vouch for ads below.

This lens is great for everything if you prefer fast, fixed lenses. It has extraordinary super-speed optics at a reasonable price.

This is a "hybrid" lens, with a Voice Coil (focus) Motor (VCM) to aid in quiet, fast and smooth focusing, as well as an aperture ring optimized for use on focus rigs for remote control for shooting video as well as still photos.

I shoot stills, for which this lens works great, even though it has features to optimize it for shooting video with silent focus and manual aperture control.

Except for focal length, it's identical to the RF 24mm f/1.4L VCM and RF 35mm f/1.4L VCM. All three are exactly the same size and have the same controls.

I got my RF 50mm f/1.4L VCM at B&H. I'd also get mine at Adorama, at Amazon or at Crutchfield, or get it used if you know How to Win at eBay.

Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM on an EOS R5 Mark II. bigger.

 

New       intro       top

blue ball icon © KenRockwell.com Canon's first 50mm f/1.4 for mirrorless cameras.

 

Good       intro       top

green ball icon © KenRockwell.com Ultrasharp.

green ball icon © KenRockwell.com Compact.

green ball icon © KenRockwell.com Reasonably priced.

green ball icon © KenRockwell.com Programmable button, usually used as Focus Lock.

green ball icon © KenRockwell.com Programmable clicked control ring.

green ball icon © KenRockwell.com AF/MF switch.

green ball icon © KenRockwell.com Hood included.

green ball icon © KenRockwell.com Case included.

green ball icon © KenRockwell.com Aperture ring.

green ball icon © KenRockwell.com Made in Japan.

green ball icon © KenRockwell.com 100% U.S.A.-based high-quality technical support at (800) OK-CANON.

 

Bad       intro       top

yellow ball icon © KenRockwell.com It feels like something's loose inside because there is. The focus groups flop around inside when it's not on a camera to control it electronically.

yellow ball icon © KenRockwell.com Plastic exterior and crappy plastic filter thread.

 

Missing       intro       top

gray ball icon © KenRockwell.com No Image Stabilizer (works with in-camera stabilization if you have it).

gray ball icon © KenRockwell.com No Stabilizer switch for in-camera stabilization.

gray ball icon © KenRockwell.com Mounting index dot not raised so it can't be found by feel in the dark.

gray ball icon © KenRockwell.com No focus or depth-of-field scales.

gray ball icon © KenRockwell.com No infra-red focus indices.

gray ball icon © KenRockwell.com Will not work with any teleconverters.

 

Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM. bigger.

 

Specifications       top

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

 

I got my RF 50mm f/1.4L VCM at B&H. I'd also get mine at Adorama, at Amazon or at Crutchfield, or get it used if you know How to Win at eBay.

 

Name       specifications       top

Canon calls this the RF 50mm F1.4 L VCM:

    RF: Works only on Canon's EOS-R Mirrorless cameras.

    L: Expensive as L.

    VCM: Voice Coil (focus) Motor.

 

Optics       specifications       top

Internal Optical Construction

Internal Optical Construction. Regular Optical Glass, Aspherical and UD glass elements. Dark-blue dashes show Sub-Wavelength Coating.

14 elements in 11 groups.

2 aspherical elements.

1 UD extra-low dispersion element, which help reduce secondary axial chromatic aberration.

Internal focusing. Canon says it's rear focusing, however the focus groups are all inside the lens and neither the front nor rear elements move — good!

Super Spectra multicoating, also a Sub-Wavelength Coating (SWC).

Fluorine coating to resist dirt and smudges.

 

Diaphragm       specifications       top

Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM. bigger.

11 rounded blades.

Electronically actuated.

Stops down to f/16.

 

Filters       specifications       top

Plastic 67mm filter thread.

 

Focal Length       specifications       top

50mm.

When used on an APS-C camera, it sees the same angle of view as an 80 mm lens sees when used on a full-frame or 35mm camera

See also Crop Factor.

 

Angles of View, Full Frame       specifications       top

46º diagonal.

40º horizontal.

27º vertical.

 

Autofocus       specifications       top

Internal focusing.

No external movement as focussed, so no air or dust is sucked in.

 

Focus Scale       specifications       top

No.

Not on lens, but may be displayed in-camera.

 

Infinity Focus Stop       specifications       top

No.

You have to focus somehow to get precise focus at infinity, just like at every other distance.

 

Depth of Field Scale       specifications       top

No.

Not on lens, but may be displayed in-camera.

 

Infrared Focus Index       specifications       top

No.

 

Close Focus (distance from subject to image plane)       specifications       top

1.3 feet (15¾ inches).

0.4 meters.

 

Maximum Reproduction Ratio       specifications       top

1:6⅔ (0.15×).

 

Image Stabilizer       specifications       top

NONE.

 

Caps       specifications       top

E-67II 67mm front cap, included.

RF Rear Cap (p/n 2962C001), included.

 

Hood       specifications       top

Canon ES-73 hood for RF 50mm f/1.4L VCM

ES-73 Hood for RF 50mm f/1.4L VCM. bigger.

The ES-73 hood is included.

 

Case       specifications       top

Canon LP1219 sack

Canon LP1219 Lens Sack. bigger.

Nice LP1219 suede sack included.

 

Size       specifications       top

3.01" ø maximum diameter × 3.91" extension from flange.

76.5 mm ø maximum diameter × 99.3 mm extension from flange.

 

Weight       specifications       top

20.46 oz. (580 g).

 

Quality       specifications       top

Made in Japan.

 

Announced       specifications       top

12:05 AM, 30 October 2024, NYC Time.

 

Promised for       specifications       top

December 2024.

 

Included       specifications       top

Lens.

E-67II 67mm front cap.

RF Rear Cap (p/n 2962C001).

ES-73 Hood.

LP1219 suede sack.

 

Packaging       specifications       top

Microcorrugated cardboard box.

"PurePulp" top and bottom lens supports, made using the same technology as ADS Speakers' "Stifflite" woofers of the 1980s that were used along with their extraordinary house-made dome midranges and tweeters.

Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM

Box. bigger.
Box end. bigger.

 

Model Numbers       specifications       top

Model number: RF50F14LVCM.

Product code: 6908C002 (6908C001 in Japan).

JAN code: 4549292-241747.

 

Price, U. S. A.       specifications       top

05 March 2025

$1,399 at B&H, at Adorama, at Amazon and at Crutchfield.

I haven't seen any sell used yet.

 

November 2024

$1,399 at B&H, at Adorama and at Crutchfield.

I haven't seen any sell used yet.

 

Accessories       top

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

 

I got my RF 50mm f/1.4L VCM at B&H. I'd also get mine at Adorama, at Amazon or at Crutchfield, or get it used if you know How to Win at eBay.

 

67mm filters.

E-67II 67mm front cap, included.

RF Rear Cap (p/n 2962C001), included.

ES-73 Hood, included.

LP1219 suede-like sack, included.

 

Getting a Legal U. S. A. Version       top

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

I got my RF 50mm f/1.4L VCM at B&H. I'd also get mine at Adorama, at Amazon or at Crutchfield, or get it used if you know How to Win at eBay.

This section applies in the U. S. A. only.

Canon RF 50mm f/1.4L VCM

U. S. A. warranty card. bigger.

Your box must include a printed U. S. A. warranty card from Canon U.S.A., Inc. It should be on top inside your box as you open it. The serial number on the card must match the serial number on the bottom of your lens.

If you have no card or the serial number doesn't match, you got ripped off with a gray market version intended to be sold in another country. This is why I never buy from any place other than my personally approved sources. You just can't take the chance of buying elsewhere, especially at any retail store where strangers have probably opened your completely unsealed box and played with your lens, because non-U. S. A. versions have no warranty in the U. S. A., and you probably won't be able to get firmware or service for it — even if you're willing to pay out-of-pocket for it when you need it!

Shifty dealers may include color copies of a card from a legitimate U. S. A. product in a gray-market box, hoping you won't check serial numbers and catch their fraud. A card with the wrong serial number means nothing other than that you have no warranty coverage.

The serial number on the box doesn't have to match, but it should. It will be hidden on the sticker on the right under the top bar code. If not, it means a shady dealer took things out of boxes and was too sloppy to put them back correctly — and it means you got a used lens if anyone other than you took it out of the box.

If a gray market version saves you $600 the risk might be worth it, but for $200 or less I wouldn't risk having no warranty or support.

Always be sure to check yours while you can still return it, or just don't buy from unapproved sources and never at retail so you'll be able to have your camera serviced and get free updated firmware as needed. Get yours from the same places I do and you won't have a problem.

 

Performance       top

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

 

Overall   Autofocus   Manual Focus   Breathing

Distance Recording   Bokeh   Distortion   Ergonomics

Falloff   Filters   Flare & Ghosts   Lateral Color Fringes

Lens Corrections   Macro   Mechanics   Sharpness

Spherochromatism   Sunstars

 

I got my RF 50mm f/1.4L VCM at B&H. I'd also get mine at Adorama, at Amazon or at Crutchfield, or get it used if you know How to Win at eBay.

 

Overall       performance       top

green ball icon © KenRockwell.com The RF 50/1.4L VCM has flawless optics, however it can freak out the innocent because when off a camera it feels like something is flopping around inside — because it is! This is normal.

 

Autofocus       performance       top

green ball icon © KenRockwell.com Autofocus is fast, and nearly silent.

It's immediate, but not instantaneous.

It's as good as I've seen for a 50mm lens.

 

Manual Focus       performance       top

Manual focusing is entirely electronic; the manual focus ring isn't connected to anything other than a digital encoder.

You may need to set some menus to get manual-focus override on older cameras.

No matter what you do, all Canon EOS-R cameras as of March 2025 in SERVO AF mode will continue to autofocus as soon as you stop turning the manual focus ring. Sadly only Nikon has this all figured out today.

 

Focus Breathing       performance       top

Focus breathing is the image changing size (growing and shrinking slightly) as focused in and out. It's important to cinematographers that the image not breathe (change size) as focus gets pulled back and forth between different actors as they speak. The image is said to breathe because it expands and contracts as the focus follows the dialog back and forth.

The image from this 50/1.4 becomes larger as focused more closely.

 

Focus Distance Recording       performance       top

green ball icon © KenRockwell.com The focused distance is recorded in the EXIF data.

I read this in the lower left of my screen in Photoshop's lens correction filter.

 

Bokeh       performance       top

green ball icon © KenRockwell.com Bokeh, the feel, character or quality of out-of-focus areas as opposed to how far out of focus they are, is very good, regardless of aperture. It's always neutral and soft.

Here are photos from headshot distance wide-open. I'm focused on the DAVIS logo. Click any for the 45 MP camera-original © 2 MB files:

Canon RF 50mm f/1.4L VCM Bokeh

Canon RF 50mm f/1.4L VCM Bokeh

Canon RF 50mm f/1.4L VCM Bokeh

Made-in-U. S. A. Davis 6357 Vantage Vue Wireless Sensor Suite (use with WeatherLink console), 10:16 AM, 25 February 2025. Shot on Canon EOS R5 II at 1/8,000, 1/2,000 and 1/500 at Auto ISO 100 (all LV 15.0).

Click any for the 45 MP camera-original © 2 MB files.

Canon RF 50mm f/1.4L VCM Sample Image File

The Goddess of Speed Adorning a 1934 Packard Super 8 Roadster, 11:18 AM, Saturday, 22 February 2025. Canon EOS R5 II, f/2 for a soft background at 1/2,500 at Auto ISO 100 (LV 13.4). bigger or camera-original 45 MP © 3 MB JPG file.

The blur circles are perfectly round; you can't see the 11-blade diaphragm at all and bokeh is beautiful.

As always, if you want to throw the background as far out of focus as possible, shoot at f/1.4 and get as close as possible.

 

Distortion       performance       top

green ball icon © KenRockwell.com The RF 50mm f/1.4L VCM has no visible distortion as-shot, with or without in-camera distortion correction.

What's weird is that this is the first time I've measured a lens which has slightly less distortion with distortion correction OFF rather than ON, so obviously leave it OFF.

Here are my correction factors for Photoshop's lens correction filter to JPG images.

On Full-Frame at 30' (10m)

Correction factor to use with images made with correction ON in R5 II

Correction factor with uncorrected images

  +0.50 -0.40

© 2025 KenRockwell.com. All rights reserved.

These aren't facts or specifications, they're the result of my research that requires hours of photography and calculations on the resulting image data.

 

Ergonomics       performance       top

Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM. bigger.
Canon RF 50mm f/1.4L VCM. bigger.

green ball icon © KenRockwell.com Ergonomics are straight-ahead: just a lens with three control rings!

The front ring is a programmable clicked control ring. Set it in your camera for aperture, exposure compensation or whatever your camera provides.

The fat rubber ring is also usually programmable (depending on your camera), and is usually manual focus.

The aperture ring is mostly for video. It only works for still shots on the newer cameras, and it has no clicks so it's downright weird to use for stills.

You may need to set some menus to get manual-focus override on older cameras.

No matter what you do, all Canon EOS-R cameras in SERVO AF mode (as of March 2025) will continue to autofocus as soon as you stop turning the manual focus ring. Sadly only Nikon has this all figured out today.

 

Falloff       performance       top

green ball icon © KenRockwell.com Falloff is invisible with default Peripheral Illumination Correction left ON.

I've greatly exaggerated the falloff by shooting a gray field and placing these on a gray background; it will not look this bad in actual photos of real things:

 

Falloff on full-frame at infinity, Peripheral Illumination correction at its default of ON:

f/1.4
f/2
falloff
falloff
falloff
falloff
f/2.8
f/4

© 2025 KenRockwell.com. All rights reserved.

If you save only raw data rather than create JPG images in-camera, whatever software you use to create visible images from that raw data later may or may not correct this as is done in-camera as JPGs. You're on your own there; I don't bother with raw data.

If you go out of your way to turn off the correction, or possibly in some raw software, this is what you get, and again this torture test makes it look much worse than it will look for real photographs:

 

Falloff on full-frame at infinity, Peripheral Illumination correction deliberately turned OFF:

f/1.4
f/2
falloff
falloff
falloff
falloff
f/2.8
f/4

© 2025 KenRockwell.com. All rights reserved.

 

Filters, use with       performance       top

green ball icon © KenRockwell.com There's no need for thin filters. I can stack a few standard 67mm filters with no vignetting at any setting on full-frame.

Go ahead and use your standard rotating polarizer and grad filters.

 

Flare & Ghosts       performance       top

green ball icon © KenRockwell.com Flare and ghosts are very well controlled.

See examples at Sunstars.

 

Lateral Color Fringes       performance       top

green ball icon © KenRockwell.com There are no color fringes when shot as JPG with the default Chromatic Aberration Correction left ON.

If you go out of your way to turn this OFF (or shoot raw and then use non-manufacturer software to process that data into images) then there is a some blue/red fringing at the corners of full frame.

If you shoot raw data rather than JPG images you may — or may not — be responsible to correct this on your own.

 

Lens Corrections       performance       top

Other cameras may vary as the years roll on, but my EOS R1, R3, R5 II, R5, R5C, R6 II, R6, R, R8, RP, R7, R10, R50 and R100 all have options to correct for falloff (Peripheral Illumination Correction), Distortion and a Digital Lens Optimizer which corrects for a suite of other aberrations.

You can turn any of these ON or OFF.

If you turn off the Digital Lens Optimizer, you are then offered à la carte ON/OFF options for Chromatic Aberration Correction and Diffraction Correction.

If you shoot raw data rather than JPG images, whatever software you use to create visible images from raw data may or may not correct these as is done in-camera as JPGs. You're on your own there; I don't bother with raw data.

 

Macro Performance       performance       top

It gets about as close as other 50mm lenses, no news here.

If you want to get closer, the much less expensive and also excellent RF 50mm f/1.8 STM gets much closer.

 

At f/1.4

It has very nice bokeh and spherochromatism isn't much of a problem:

Canon RF 50mm f/1.4L VCM Macro Performance Sample Image File

Casio G-Shock Solar Atomic Watch at close-focus distance, 2:44 PM, Monday, 24 February 2025. Shot on Canon EOS R5 II at 1/8,000 at ISO 50 (LV 15.0). bigger or camera-original © file.

 

Canon RF 50mm f/1.4L VCM Macro Performance Sample Image File

1,200 × 900 pixel (6.8× magnification) crop from above. bigger or camera-original © file.

If this 1,200 × 900 pixel crop is about 3" (7.5cm) wide on your screen, the complete image would print at a large 14 × 21″ (35 × 55 cm) at this same high magnification.

If this 1,200 × 900 pixel crop is about 6" (15cm) wide on your screen, the complete image would print at a huge 27½ × 41¼″ (70 × 105 cm) at this same high magnification.

If this 1,200 × 900 pixel crop is about 12" (30cm) wide on your screen, the complete image would print at a mammoth 55 × 82½″ (1.4 × 2.1 meters) at this same extremely high magnification!

 

At f/8

As all lenses, it's ultra-sharp at f/8:

Canon RF 50mm f/1.4L VCM Macro Performance Sample Image File

Casio G-Shock Solar Atomic Watch at close-focus distance, 2:44 PM, Monday, 24 February 2025. Shot on Canon EOS R5 II at 1/500 at Auto ISO 100 (LV 15.0). bigger or camera-original © file.

 

Canon RF 50mm f/1.4L VCM Macro Performance Sample Image File

1,200 × 900 pixel (6.8× magnification) crop from above. bigger or camera-original © file.

The texture you're seeing is on the watch face.

If this 1,200 × 900 pixel crop is about 3" (7.5cm) wide on your screen, the complete image would print at a large 14 × 21″ (35 × 55 cm) at this same high magnification.

If this 1,200 × 900 pixel crop is about 6" (15cm) wide on your screen, the complete image would print at a huge 27½ × 41¼″ (70 × 105 cm) at this same high magnification.

If this 1,200 × 900 pixel crop is about 12" (30cm) wide on your screen, the complete image would print at a mammoth 55 × 82½″ (1.4 × 2.1 meters) at this same extremely high magnification!

 

Mechanical Quality       performance       top

Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM. bigger.

This is all plastic on the outside, with a metal mount.

 

Exterior Finish

Black plastic.

 

Hood

Plastic bayonet.

 

Front Bumper.

None.

 

Filter Threads

Plastic.

 

Hood Bayonet Mount

Plastic.

 

Barrel Exterior

Plastic.

 

Focus Ring

Rubber-covered plastic.

 

Slide Switches

Plastic.

 

Identity

Printed around front of lens in nearly invisible gray, also "50" engraved and filled with paint on the top of the barrel.

 

Internals

Seems like a mix of plastic and metal.

 

Dust Gasket at Mount

Yes.

 

Mount

Chromed metal.

 

Markings

Paint.

 

Serial Number

Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM. bigger.

Laser engraved in warm black on black on the bottom of the barrel.

 

Date Code

The serial number contains a date code.

My serial number starts with 146, which means it was made in October 2024.

 

Noises When Shaken

It sounds like there's something loose inside, which is the focus group flopping around.

It's inelegant, but normal.

 

Ethics & Quality

Made in Japan.

 

Sharpness       performance       top

Lens sharpness has nothing to do with picture sharpness; every lens made in the past 100 years is more than sharp enough to make super-sharp pictures if you know what you're doing. The only limitation to picture sharpness is your skill as a photographer. It's the least talented who spend the most time worrying about lens sharpness and blame crummy pictures on their equipment rather than themselves. Skilled photographers make great images with whatever camera is in their hands; I've made some of my best images of all time with an irreparably broken camera! Most pixels are thrown away before you see them, but camera makers don't want you to know that.

If you're not getting ultra-sharp pictures with this, be sure not to shoot at f/11 or smaller where all lenses are softer due to diffraction, always shoot at ISO 100 or below because cameras become softer at ISO 200 and above, avoid shooting across long distances over land which can lead to atmospheric heat shimmer, be sure everything is in perfect focus, set your camera's sharpening as you want it (I set mine to the maximum) and be sure nothing is moving, either camera or subject. If you want to ensure a soft image with any lens, shoot at f/16 or smaller at ISO 1,600 or above at default sharpening in daylight of subjects at differing distances in the same image.

People worry waaaaay too much about lens sharpness. It's not 1968 anymore when lenses often weren't that sharp and there could be significant differences among them; ever since about 2010 all new lenses are all pretty much equally fantastic.

green ball icon © KenRockwell.com This lens is ultra sharp corner-to corner at every aperture, limited by your vision as an artist and of course by diffraction at the smallest apertures. Especially at f/1.4 where it's difficult, this lens is ultrasharp and contrasty all the way out to the corners.

Avoid f/11 and smaller unless you really need it for extreme depth of field because diffraction takes its toll. See also How to Calculate the Sharpest Aperture.

Canon RF 50mm f/1.4L VCM MTF

MTF wide-open at f/1.4 at 10 cyc/mm (black) and 30 cyc/mm (blue). Sagittal (solid) and meridional (dashed).

While it's usually valid to compare rated MTFs between different lenses of a similar age from the same maker, every maker measures or simply calculates MTF very differently, and therefore one cannot compare these curves between brands.

 

Spherochromatism       performance       top

Spherochromatism, also called secondary spherical chromatic aberration or "color bokeh," is an advanced form of spherical and chromatic aberration in a different dimension than lateral chromatic aberration and therefore cannot be corrected with software or automatic corrections. It happens mostly in fast normal and tele lenses when spherical aberration at the ends of the color spectrum are corrected differently than in the middle of the spectrum. Spherochromatism can cause colored fringes on out-of-focus highlights, usually seen as green fringes on backgrounds and magenta fringes on foregrounds. Spherochromatism is common in fast lenses of moderate focal length when shooting contrasty items at full aperture. It goes away as stopped down.

It has a fair amount of spherochromatism, with blue-cyan fringes behind and red-magenta fringes ahead of the plane of perfect focus:

Canon RF 50mm f/1.4L VCM Spherochromatism

Mondaine A132.30348.11SBB at close-focus distance at f/1.4, 24 February 2025. Shot on Canon EOS R5 II at 1/12,800 at Auto ISO 100 (LV 14.6). bigger or camera-original © file.

 

Canon RF 50mm f/1.4L VCM Spherochromatism

1,200 × 900 pixel (6.8× magnification) crop from above. bigger or camera-original © file.

If this 1,200 × 900 pixel crop is about 3" (7.5cm) wide on your screen, the complete image would print at a large 14 × 21″ (35 × 55 cm) at this same high magnification.

If this 1,200 × 900 pixel crop is about 6" (15cm) wide on your screen, the complete image would print at a huge 27½ × 41¼″ (70 × 105 cm) at this same high magnification.

If this 1,200 × 900 pixel crop is about 12" (30cm) wide on your screen, the complete image would print at a mammoth 55 × 82½″ (1.4 × 2.1 meters) at this same extremely high magnification!

 

Sunstars       performance       top

With an 11-bladed rounded diaphragm, I get mild 22-point sunstars on brilliant points of light only at the smallest apertures.

Ignore the vertical smear at large apertures. This is a sensor artifact called interline transfer smear and is a camera, not a lens, defect.

Likewise ignore the crazy rainbow dots at small apertures; these are sensor artifacts caused by interference among the divisions between pixels on the sensor. These are made visible because we're using enough exposure to show the dark underside of a huge palm tree, and then putting the blinding disk of the mid-day sun in it. Doing this will show everything due to the insane lighting range.

Click any to enlarge:

Canon RF 50mm f/1.4L VCM Sunstars

Canon RF 50mm f/1.4L VCM Sunstars

Canon RF 50mm f/1.4L VCM Sunstars

Canon RF 50mm f/1.4L VCM Sunstars

Canon RF 50mm f/1.4L VCM Sunstars

Canon RF 50mm f/1.4L VCM Sunstars

Canon RF 50mm f/1.4L VCM Sunstars

Canon RF 50mm f/1.4L VCM Sunstars

Click any to enlarge.

 

User's Guide       top

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

 

I got my RF 50mm f/1.4L VCM at B&H. I'd also get mine at Adorama, at Amazon or at Crutchfield, or get it used if you know How to Win at eBay.

 

See also Canon's RF 50mm f/1.4L VCM User's Manual.

 

Canon RF 50mm f/1.4L VCM

Canon RF 50mm f/1.4L VCM. bigger.

 

Aperture Ring and IRIS Button

You have to slide the IRIS button towards the front of the lens to move the ring between the A setting and the numbered apertures.

As soon as you let go of the IRIS button it either locks at A or won't leave the f/1.4 ~ f/16 range.

 

Manual-Focus Override       user's guide       top

Older EOS R cameras need a menu setting changed for manual-focus override, otherwise the focus ring is always ignored in AF. Newer cameras have this set by default.

Find the "Lens electronic AF" or "Electronic full-time MF" option in your AF menu (AF 6 in R5 II, R6 II, R7, R8 and R10, AF 4 in EOS R5 and EOS R6 or CAMERA 8 in EOS RP), and set it to either "One‑Shot‑> enabled," "One‑Shot‑> enabled (magnify)" or ON. Canon should have it set this way by default, but they didn't in older models. No big deal now that I figured it out, and it usually works by default in newer cameras.

Once set, manual-focus override works well in ONE SHOT AF (AF then lock) mode, but in SERVO AF mode all Canon EOS-R cameras as of March 2025 continue to autofocus as soon as you stop turning the manual focus ring! Sadly only Nikon has this all figured out today.

 

Distortion Correction       user's guide       top

Oddly, this lens is so good that there is less distortion with Distortion Correction left OFF, so leave Distortion Correction OFF.

 

Recommendations       top

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

 

I got my RF 50mm f/1.4L VCM at B&H. I'd also get mine at Adorama, at Amazon or at Crutchfield, or get it used if you know How to Win at eBay.

 

This lens is fantastic for anyone who wants an ultrasharp, ultrafast 50mm fixed lens.

If budget matters, don't forget about the superb RF 50mm f/1.8 STM, which isn't quite as fast but is much smaller and focuses much closer.

For astronomy, the larger RF 50mm f/1.2L USM is also superb. It's a bit faster and more expensive.

Used properly, all of Canon's RF lenses are equally sharp. The differences are in maximum apertures, focal lengths and stabilization, but none of them are soft if you know how to use them. Lens sharpness has nothing to do with picture sharpness.

I use a clear (UV) protective filter instead of a cap (exactly like an iPhone) so I'm always ready to shoot instantly. I only use a cap when I throw this in a bag with other gear without padding — which is never. The UV filter never gets in the way, and never gets lost, either.

The very best protective filter is the nearly indestructible Hoya multicoated HD3 67mm UV which uses hardened glass and repels dirt and fingerprints.

For less money, the Nikon 67mm NC (No Color/Neutral Clear), Hoya 67mm NXT Plus UV and Hoya 67mm UV MC are all excellent filters, but the Hoya HD3 is the toughest and the best.

If I was working in nasty, dirty areas, I'd use an uncoated 67mm Tiffen UV filter instead. Uncoated filters are much easier to clean, but more prone to ghosting.

Filters last a lifetime, so you may as well get the best. The Hoya HD3 stays cleaner than the others since it repels oil and dirt.

All these filters are just as sharp and take the same pictures, the difference is how much abuse they'll take and stay clean and stay in one piece. Since filters last a lifetime or more, there's no reason not to buy the best as it will last you for the next 50 years. Filters aren't throwaways like digital cameras which we replace every few years, like it or not. I'm still using filters I bought back in the 1970s! The Hoya HD3 stays cleaner than the others since it repels oil and dirt, and you'll be using it long after you've thrown this lens away in 50 years.

 

More Information       top

Sample Images   Intro   New   Good   Bad   Missing

Specifications   Accessories   USA Version

Performance   Usage   Recommendations   More

 

I got my RF 50mm f/1.4L VCM at B&H. I'd also get mine at Adorama, at Amazon or at Crutchfield, or get it used if you know How to Win at eBay.

 

Canon's RF 50mm f/1.4L VCM User's Manual.

 

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05 March 2025 write review & add samples, 22 Nov 2024 add Crutchfield, 30 October 2024