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Full Review published March 7th 2015
Canon EF 11-24mm f/4 L USM zoom lens information
A collection of information and reviews for Canon's new ultrawide EF lens
There are also some initial test images and technical specifications further down this page.
This page will contain new information and news about the lens as we find it
A new ultrawide zoom
Canon has added the Canon EF 11-24mm f/4 L USM zoom lens to the EF range, the widest rectilinear zoom available.
Since I've been lucky enough to get one, this page will contain updates and info, along with first impressions of use.
Questions/Comments? I've added a Disqus section at the foot of the page.
The view at 11mm, with the camera vertical
Here's a comparison of the EF14 2.8L II and EF 11-24 full frame and in the top RH corner.
Move your mouse over the images to see the alternative view.
The 14mm exhibits stronger distortions than the 11-24, but once corrected is still a superb lens. I should note that the EF14 2.8LII is supported by lens profiles (both in ACR and DxO Optics Pro) with my 1Ds mk3, but the 11-24 is too new.
Just how they will perform on the 5Ds is something I'm keen to see ;-)
Levelling the camera (almost) gives this view (also at 11mm)
This 100% crop shows some detail (1Ds3 ~21MP no sharpening other than standard in ACR). This is at f/8 focused on the nearest support. The pots and mirror are circular - this is a normal consequence of a wide rectilinear projection.
The 11-24 makes the 1Ds3 body look a bit smaller than usual.
This lens is going to be great with the 5Ds when it turns up...
The lens cap is big but quite light - it almost felt a bit flimsy when taking it out of the box, but it fits just fine.
It is huge - and only weighs a bit less than my 70-200 2.8L IS
This side view doesn't really give a feel for the bulk.
Look at the front elements though.
The rear element almost touches any gel filter at 11mm - forget any front filters that are not the size of a car door window...
The front element moves with focal length. There is a lot of glass moving when you zoom, you can really feel it when zooming.
Some people call 24mm 'wide angle'.
It's when I think that a lot of people consider 16mm very wide (on full frame) that you see just how far this lens goes.
A quick check, out in the street, compares the view at 11mm with a left-right stitched shot using the TS-E17mm both at f/8.
The stitched shot is wider (~10mm), but even at f/8 is showing some vignetting.
The stitched shot needs correcting for residual chromatic aberation, whilst the 11-24 mm shot can be corrected with the basic setting in ACR/Photoshop. The image is of the top RH corner at 200%.
Move your mouse over the image below to see the correction (there are no lens profiles for this lens as yet).
Exotic glass of the 11-24 - from CPN
MELVILLE, N.Y., February 5, 2015 – Canon U.S.A., a leader in digital imaging solutions, is proud to introduce the superb new Canon EF 11-24mm f/4L USM ultra wide-angle zoom lens designed to deliver high quality, minimally distorted images throughout the entire zoom range. Featuring the widest angle of view (126º05’ diagonal) ever achieved for a rectilinear full-frame Digital SLR lens*, and a minimum focusing distance of 11 inches (at 24mm), this new lens is ideal for professionals who want the ultimate in creative image expression with sharp, crisp detail whether shooting entire buildings from a close position, entire stadium shots from a high-vantage point, large group photos at a scenic wedding or even astrophotography. Cinematographers will be equally as impressed with the lens’ ability to retain straight lines.
Fully compatible with all EOS cameras, but particularly effective with full-frame cameras such as the new Canon EOS 5DS and EOS 5DS R Digital SLR cameras also announced today, this new L-series lens features newly developed optics comprised of 16 elements in 11 groups with a three group zoom system and rear focus. The new optical design utilizes four aspherical lens elements to help minimize distortion from the center of the image to the periphery, across the entire zoom range. This new optical array provides straight lines with minimal curve throughout the zoom range, ideal for architectural, event, and forensic photography. The lens also features one Super UD element and one UD lens element to help significantly reduce chromatic aberration and deliver sharp images with high resolution. Canon’s advanced lens coating technologies are also liberally employed to help minimize ghosting and flare, while simultaneously enhancing accurate color balance and maximum light transmission efficiency.
“Canon is very proud of its optical heritage. The creation of this new lens continues our tradition of providing photographers with unique image-making solutions that are not only thoughtfully designed but precisely engineered and manufactured,” said Yuichi Ishizuka, president and COO of Canon U.S.A., Inc. “The new Canon EF 11-24mm f/4L USM ultra wide-angle zoom lens features newly developed optics and an unprecedented combination of Canon optical technologies. We are very eager to see the beautiful images that photographers will create using this new lens with Canon EOS DSLR and Cinema EOS cameras.”
The new Canon EF 11-24mm f/4L USM lens’ impressive 11mm starting focal length and 9-blade circular aperture help deliver beautiful, high-quality, detailed images. The new lens accurately reproduces straight lines in the subject with minimal distortion, ideal for architectural and landscape photographers looking to create images with tremendous depth and strong perspective.
Wide-angle lenses are especially prone to flare and ghosting. To help reduce these effects, the new Canon EF 11-24mm f/4L USM lens features Canon’s proprietary Sub-Wavelength Structure Coating (SWC) and Air Sphere Coating (ASC). SWC is applied to the rear surface of the first and second aspheric lens elements, while ASC is used on the front of the fourth element. The SWC coatings are particularly effective for combatting flare and ghosting caused by light rays entering the lens at a large angle of incidence, while the ASC coating helps mitigate the same problems for light rays entering the center of the lens. The new lens also employs Canon’s Super Spectra Coating (SSC) to enhance light transmission while at the same time optimizing color reproduction accuracy.
The Canon EF 11-24mm f/4L USM lens features a meticulously designed inner focusing system and zoom ring, as well as a built-in petal type lens hood with light-shielding grooves. Along with a high-speed CPU and optimized AF algorithms, this lens enables fast and accurate autofocusing, while its full-time manual focus feature allows manual focus adjustment even in AF mode. As with all L-series lenses, this durable new lens is highly resistant to dust and water -- ideal for outdoor photography even when conditions are harsh. In addition, a fluorine coating on the front and rear surfaces of the lens helps reduce smears and fingerprints and makes the lens easier to clean.
Pricing and Availability
Full optical construction details not yet published
Here's the lens compared in size to the 8-15 and EF14
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