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Canon 16-35mm f/4 L IS
Full-Frame EF Ultra-Wide (2014-)

Intro   Specs   Performance   Compared   Usage   Recommendations

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Canon 16-35mm IS

Canon EF 16-35mm f/4 L IS (77mm filters, 21.7 oz./616g, 0.92'/0.28m close focus, about $1,100 after rebate). enlarge. I bought mine at Adorama. I'd also get it at Amazon.

This free website's biggest source of support is when you use those or these links to approved sources when you get anything, regardless of the country in which you live — but I receive nothing for my efforts if you take the chance of buying elsewhere. Never buy at retail, since unlike milk or DVDs which are sealed, Canon doesn't seal its boxes so you can't tell if it's a used lens.

Thanks! Ken.


March 2015   Canon Reviews   Canon Lenses   All

NEW: Ultra-Ultrawides compared

NEW: Canon Ultrawide Lens Sharpness Comparison

All Canon Ultrawides Compared

How to Use Ultrawide Lenses


Canon 16-35mm f/4 L IS (2014-today)

Canon 16-35mm f/2.8 L II (2007-today)

Canon 16-35mm f/2.8 L (2001-2007)

Canon 17-40mm f/4 L (2003-today)

Canon 17-35mm f/2.8 L (1995-2001)

Canon 20-35mm USM (1993-2007)

Canon 20mm f/2.8 USM (1992-today)

Canon 20-35mm f/2.8 L (1989-1995)

Tokina 17-35mm f/4 (2011-)


Sample Images

Barn, Yosemite National Park

Barn, Yosemite National Park, 19 October 2014, 9:07 AM. (Canon 5D Mark III, Canon EF 16-35mm f/4 L IS at 27mm, f/10 at 1/200 hand-held at Auto ISO 200, Athentech Perfectly Clear v2.) Bigger.


Sunstar in Aspens above Bridgeport

Sunstar in Aspens above Bridgeport, 19 October 2014, 4:20 PM. (Canon 5D Mark III, Canon EF 16-35mm f/4 L IS at 24mm, f/22 at 1/30 hand-held at ISO 100, Athentech Perfectly Clear v2.) Bigger.

I shot at f/22 to emphasize the sunstar.


Colors at the Mine at 4:42 PM, quitting time at Sperry Gyroscope

Colors at the Mine at 4:42 PM, quitting time at Sperry Gyroscope, 19 October 2014. (Canon 5D Mark III, Canon EF 16-35mm f/4 L IS at 28mm, f/14 at 1/100 hand-held at ISO 100.) BIgger.


Benihana, 04 July 2014

Teppanyaki, Japan, 04 July 2014. Canon 5D Mk III, 16-35/4 L IS at 20mm, f/8 at 1/160 at ISO 100. full resolution.

Yes, it's this sharp all the way to the corners, and this is with no lens profile. It's this clean all by itself.


Night, 08 July 2014

Moonlight, 08 July 2014. Canon 5D Mk III, 16-35/4 L IS at 16mm, f/4 at 1/3 second hand-held at ISO 12,800. bigger.

Hand-held at 1/3 of a second and sharp in the corners wide open! This is shot at LV -1.5, which means super dark.

The old 16-35/2.8 L II isn't this sharp in the corners at f/4, and it has no IS for sharp shots this slow hand-held. With the 16-35/2.8 L II you'd have to use a tripod, with which then you'd shoot at f/2.8 at 30 seconds at ISO 100 — but wait, at f/2.8 the old 16-35/2.8 L II isn't sharp, so to use the exposure you'd really want, f/11 at ISO 100, you'd need a remote release and an 8-minute exposure!


Hong Chow, China, 08 July 2014

Hangzhou, China, 08 July 2014. Canon 5D Mk III, 16-35/4 L IS at 24mm, f/4 at 1/20 second hand-held at ISO 200. full resolution.

The key here is that at 1/20 second and f/4 I can shoot at ISO 100. With my old 16-35/2.8 L II I'd have to shoot at much noisier and softer ISO 1,600 to shoot at f/11 and 1/40.


Introduction         top

Intro   Specs   Performance   Compared   Usage   Recommendations

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The 16-35mm f/4 L IS is the sharpest ultrawide lens ever made by Canon. This new lens is by far the best ever from Canon for nature, landscape, interior, real estate, general architecture and outdoor photography.

While Canon's 17-40mm f/4 L and 16-35mm f/2.8 L II were the standards of the professional nature and landscape photography for years, they weren't very sharp in the corners — especially at large apertures. We always had to shoot them at f/11 for the best corner results. Many landscape professionals adapted the Nikon 14-24mm and 16-35mm lenses to their Canon cameras, or hauled the huge manual focus Zeiss lenses instead. This new lens ends all that; it's sharp right down to the pixels even in the corners.

This Canon 16-35mm f/4 L IS is Canon's first ultra-performance ultrawide for full-frame, and it's also Canon's first full-frame ultrawide with Image Stabilization (IS).

Grab the manual focus ring at any time for instant manual focus override.


Formats and Compatibility

This works on all Canon EOS cameras, meaning all Canon DSLRs and all Canon 35mm EOS autofocus SLRs.

While it works on all these, this is a full-frame lens and it is silly to use it on Canon's APS-C cameras. For these cameras, even the 18-55mm kit lenses work better because of their broader zoom ranges more appropriate for those cameras.

On APS-C, this is a normal, not wide angle lens. For a wide angle lens on APS-C cameras, use the Canon 10-18mm EF-s. It costs only one-fourth as much, and goes much, much wider than this lens does on those cameras.

This is a superior full-frame lens, and as such, I'll be testing it on full frame.

Canon 16-35mm IS

Canon EF 16-35mm f/4 L IS. bigger.


Specifications         top

Intro   Specs   Performance   Compared   Usage   Recommendations


Canon 16-35mm IS with EW-82 Hood

Canon 16-35mm IS.

Canon calls this the Canon Lens EF 16-35mm f/4 L IS.

   EF: Electronic Focus. All modern Canon lenses focus with a motor in the lens.

   L: Expensive as L.

   IS: Image Stabilization

   USM: UltraSonic ring autofocus Motor.



16 elements in 12 groups.

Three Glass-Molded (GMo) aspheric lens elements and and two UD glass elements.

Front and rear dust-resistant fluorine coatings.

Four-group zoom system. The barrel doesn't move while the front and rear groups slide in and out.

Internal focus. Nothing moves externally.



Canon 16-35mm IS

Canon EF 16-35mm f/4 L IS (EF diaphragm not visible).

9 curved blades.


Close Focus

0.92 feet (0.28m).


Maximum Reproduction Ratio

1:4.3 (0.23x).


Focal Length



Angle of View

63º - 108.2º  diagonal on full-frame.


Maximum Aperture



Image Stabilization

Rated four stops improvement.



Canon 16-35mm IS with EW-82 Hood

Canon 16-35mm IS with EW-82 Hood.

EW-82 hood included.

It has a lock with a release button.



Pouch included.



3.3" (82.8mm) diameter x 4.4" (112.8mm).



21.745 oz. (616.5g), actual measured.

Canon rates it at 21.7 oz. (615g).










13 May 2014.


Promised for

June 2014.


Shipping Since

I got the first one on 01 July 2014.


Canon Item Number



Price, USA

$1,100 after rebate, March 2015.

$1,200, May-July 2014.

Canon 16-35mm IS

Box, Canon EF 16-35mm f/4 L IS.


Performance         top

Intro   Specs   Performance   Compared   Usage   Recommendations

Overall    Autofocus    Bokeh   Breathing   Color

Distortion   Ergonomics   Falloff    Filters    Ghosts

Image Stabilization   Lateral Color Fringes   Macro

Mechanics   Sharpness   Sunstars


Overall     performance      top

The Canon 16-35mm f/4 L IS is optically superb.


Focus     performance      top

AF is virtually instantaneous, and also silent and accurate.


AF Speed

As expected for an ultrawide lens, AF is essentially instantaneous.


Auto/Manual Switching

Just grab the focus ring anytime for instant manual-focus override.

To lock it into manual mode, move the switch on the lens.


Bokeh     performance      top

Sasha 06 July 2014

It's not always about sharpness: Sasha, 06 July 2014. (Canon 5D Mark III, Canon 16-35mm f/4 IS L at 35mm at f/4 at 1/125, Athentech Perfectly Clear.) bigger.

Bokeh, the quality of out-of-focus areas as opposed to the degree of defocus, isn't visible. There is rarely anything out of focus except at macro ranges, where bokeh is excellent.


Color Rendition     performance      top

The color balance of this 16-35 seems the same as my other Canon EF lenses.


Distortion     performance      top

The Canon 16-35 IS has moderate barrel distortion at 16mm, and little distortion from 20-35mm. Bravo!

For critical use, use these values in Photoshop's Lens Distortion tool to remove the distortion. These aren't facts or specifications, they are the results of my research that requires hours of photography and calculations on the resulting data.


at 10' (3m)




© 2014 KenRockwell.com. All rights reserved.

* slight waviness remains after correction.

The best news is that the distortion is of a low order, so it usually corrects completely with Photoshop's Lens Distortion tool, no fancier software needed.


Ergonomics     performance      top

Canon 16-35mm IS

Canon EF 16-35mm f/4 L IS.

Ergonomics are easy: it's a big lens with big focus and zoom rings.

Focus is easy; a fingertip will suffice.

Zoom is stiffer; you'll want to use at least two fingers.


Falloff (darkened corners)     performance      top

Falloff is negligible, even without a profile.

It's barely visible wide open at 16mm, and goes away a stop or two down.

Longer focal lengths don't have any significant falloff, even wide open.


Filters, Use with     performance      top

There's no problem with vignetting, even with thick or rotating filters.

There's no need for thin filters; regular thick and rotating filters work great.

In fact, I can stack a Tiffen rotating ND grad filter over my Hoya HD polarizer AND another regular filter, and I get no vignetting so long as I don't zoom wider than 23mm!

Even at 16mm I get no vignetting on full-frame with my Hoya HD polarizer and another regular filter.

I only grabbed my Hoya HD polarizer because it was handy for this vignetting experiment; don't use polarizers at the 16mm end because they make skies look funny.

I'm not a fan of the plastic filter threads. A $1,200 lens should have metal threads. They feel pretty loose; the filter has some play left and right.


Focus Breathing     performance      top

Focus breathing (the image changing size as focused) is mostly of interest to cinematographers who don't want the image changing size ("breathing") as the lens is focused among different subjects.

The image from the 16-35 IS gets smaller as focussed more closely.


Ghosts       performance     top

There are no ghosts. I had to go way out of my way to shoot directly into the noontime summer sun and then add a lot of exposure, process in Perfectly Clear and put a dark tree in the area where I expected ghosts in order to to see any.

These are the worst I could do:

Canon 16-35mm ghosts

Shot directly into the sun at 16mm at f/, 17 July 2014. bigger or full resolution.


Canon 16-35mm ghosts

Shot directly into the sun at 35mm at f/10, 17 July 2014. full resolution.

There's no problem with flare or ghosts.

In actual use, there will be none.

This is excellent performance.


Image Stabilization     performance      top

Image Stabilization works great. Presuming you know how to shot a rifle and thus shoot a camera properly at slow speeds, I get perfectly sharp shots most of the time at 1/4 second, and can get sharp shots at 1/2 if I shoot a few frames and pick the best.

I use a simple technique when I'm on the edge: just shoot several frames, and one is usually much sharper than the others. Use that, and delete the rest.


Lateral Color Fringes     performance      top

Even without an in-camera profile, there are no color fringes except for the tiniest bit of red-cyan at 16mm.

This is much better than any other Canon ultrawide lens, and of course it will correct with a profile.


Macro     performance      top

Macro gets close.

It's rated as 11" or 28 cm, but that's from the image plane at the back of the camera.

I measure its close-focus distance as 4.5" (11 cm) from the front of the lens!

Here's what you get zoomed at 35mm on full frame:

Canon 16-35mm IS macro performance

GPW Watch at close-focus distance at 35 mm at f/4 on full-frame (would be even bigger on APS-C).


Canon 16-35mm IS macro performance

Crop from above 6MP image at 100%. If this is 6" (15cm) on your monitor, the complete image printed at this same high magnification would be 30 x 20" (75 x 50 cm) at this very same sharpness. Only the face is in focus; there is so little depth-of-field that the hands and bezel are out of focus.

Not only does it get close, it's sharp, too — even at full aperture as I've shown here!


Mechanics     performance      top

Canon 16-35mm IS

Canon EF 16-35mm f/4 L IS. bigger.

The Canon 16-35mm IS L is all plastic on the outside, and metal on the inside. It's not as tough as the 16-35mm f/2.8 L II.


Filter Threads



Hood Mount



Identity Ring

Painted on front plastic ring inside the filter threads.


Front Barrel



Focus Ring

Rubber covered plastic.


Mid Barrel



Zoom Ring

Rubber-covered plastic.


Rear Barrel







Mostly metal.


Moisture seal at mount









Serial Number

Laser-engraved into plastic lens barrel, 180º behind focus window.


Date Code

None seen.

See Canon Date Codes.


Noises When Shaken

Mild clunking.


Made in



Sharpness     performance      top

It is Canon's sharpest ultrawide ever, however Image sharpness depends more on you than your lens, and lens sharpness doesn't mean much to good photographers. It's the least skilled hobbyists who waste the most time blaming fuzzy pictures on their lenses, while real shooters know that few photos ever use all the sharpness of which their lenses are capable due to subject motion and the fact that real subjects are rarely perfectly flat.

Shot at the test range at infinity, the 16-35 IS is ultrasharp at all apertures, all focal lengths and at all points in the image. It is a little less sharp in the last couple of millimeters in the full-frame far corners at f/4, but it's so good and so much better than anything ever made by Canon that I'm not complaining. The 16-35mm IS brings state-of-the art sharpness to Canon ultrawides for the first time.

RP, 04 July 2014

Sharp photo of a fuzzy idea wide-open at f/4 at 16mm, 04 July 2014. Canon 5D Mk III, 16-35/4 L IS at 16mm, f/4 at 1/640 at ISO 100, no lens profile. © camera-original file.


RP, 04 July 2014

Sharp photo of a fuzzy idea wide-open at f/4 at 35mm, 04 July 2014. Canon 5D Mk III, 16-35/4 L IS at 35mm, f/4 at 1/500 at ISO 100, no lens profile. © camera-original file.

No other Canon ultrawide is sharp all the way to the corners wide-open like this, and they all have lateral color fringes when used with no profile as I've done here. To be this sharp, Canon's previous ultrawides needed to be stopped down to f/11.

Even at f/11, older Canon lenses couldn't do this:


Sling at Nonis 06 July 2014

Sling Chair, 06 July 2014. 5D Mk III and 16-35 IS at 24mm at f/11. Full resolution.


Here are Canon's MTF curves, which look excellent as well:

Canon 16-35mm MTF
Canon 16-35mm MTF
MTF at 16mm.
MTF at 35mm.


Sunstars     performance      top

Palm Desert 18 April 2016

Canon 16-35mm sunstar at 19mm at f/11. bigger.


RP, 17  July 2014

Canon 16-35mm sunstar at 16mm at f/11. bigger.


Mercedes GL550 headlight,

GL550 headlight at 35mm at f/13. Full Resolution.

With its rounded 9-blade diaphragm, this Canon 16-35mm IS makes only muted sunstars at most apertures.

Use f/22 for the best results:

Canon 16-35mm IS Sunstars at f/8 Canon 16-35mm IS Sunstars at f/8
Canon 16-35mm IS Sunstars at f/8 Canon 16-35mm IS Sunstars at f/8

Click any to enlarge.

The good news is that the 16-35's sunstars are very symmetrical. If you can get them, they look great.


Compared         top

Intro   Specs   Performance   Compared   Usage   Recommendations


Compared to Canon

Canon Ultrawides Compared.

Canon 20/2.8 USM, 17-40/4 L, 16-35/2.8 L II and 16-35/4 L IS. bigger.


This is by far Canon's sharpest ultrawide ever.

NEW: Canon Ultrawide Lens Sharpness Comparison.

See also All Canon Ultrawides Compared.

It weighs more than the 17-40mm f/4 L and a little less than the 16-35mm f/2.8 L II, either of whose performance it exceeds.


Compared to Nikon

Nikon's 16-35mm f/4 VR is very similar.

There a many problems using the Nikon lens on a Canon camera with an adapters: the Nikon lens has no autofocus, no VR, no IS, feeds no lens data to the EXIF, has no lens profiles available, and most critically, has a completely manual diaphragm. You'll have to open and close the diaphragm by hand for each and every shot.

People used to mess with this before the introduction of the Canon 16-35 IS, but now that Canon offers essentially the same lens in a native Canon mount, forget about using the Nikon 16-35 or 14-28 on a Canon. The optics are all as good, and the Canon 16-35 IS has ergonomics a zillion times better for use on Canon.


Compared to Zeiss

I'd likewise forget the huge manual focus Zeiss lenses.

Before this 16-35mm the manual-focus Zeiss lenses were the smartest choices if you needed the very best optical performance for an ultrawide on a Canon DSLR, and again this new lens makes the Zeiss lenses completely obsolete.

The Zeiss lenses are too big and heavy and focus too slowly manually and don't zoom. Forget them today.


Usage         top

Intro   Specs   Performance   Compared   Usage   Recommendations   More

Canon 16-35mm IS

Canon EF 16-35mm f/4 L IS. bigger.


Recommendations         top

Intro   Specs   Performance   Compared   Usage   Recommendations

For nature, landscapes, fine art and architecture, this is Canon's sharpest ultrawide lens ever. There is no question about that.

For news, action, astronomy and sports, the more expensive 16-35mm f/2.8 L II is built more solidly and is a stop faster. Image Stabilization is of no help if the subject is moving or on a tripod, but f/2.8 will let you use a faster shutter speed or lower ISO for sharper pictures when things are moving or extremely dark.

The 16-35mm f/2.8 L II will become a dinosaur used only for professional news and sports shooting; you only need f/2.8 if you're shooting action. For everything else, the smaller size and price of this new lens coupled with its improved optics and IS eclipse the 16-35 f/2.8 L II.

If you find this information helpful, my biggest source of support for this free website is when you use these links to it at Adorama or at Amazon, or any of these links to approved sources when you get anything. Unlike a bottle of milk or a CD, DVD or Blu-Ray disc, Canon doesn't seal its boxes so you have no idea if you're actually getting a used product if you risk buying at retail. Never buy at retail.




© Ken Rockwell. All rights reserved. Tous droits réservés. Alle Rechte vorbehalten.


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13 May 2014