Review of Canon EF 16-35mm f/2.8L II
Comparison with EF 16-35mm f/2.8L

In this review, performance of the Canon EF 16-35mm f/2.8L II is compared to that of the first version of the lens (EF 16-35mm f/2.8L).

Statements from the Canon website about the EF 16-35mm f/2.8L II:
It has been specifically designed for improved edge-to-edge image quality.....It features 3 high-precision aspherical lens elements, each of a different type: ground, replica and GMo for even better image quality than the original EF 16-35mm f/2.8L USM. The circular aperture produces a beautiful and natural background blur when shooting at wider apertures. Other features include internal focusing, a ring type USM (Ultra Sonic Monitor), and new AF algorithms for fast and quiet autofocusing.

A brief performance review of the original EF 16-35mm f/2.8L lens relative to the EF 17-40mm f/4L lens is HERE.

Lens Specifications

50% MTF and Resolution

Data determined using these methods.
Performance of both lenses is excellent and noticeably better than the three non-L primes tested. The first version of the lens gave slightly better 50% MTF performance at f/2.8 than the second version.

Corner Sharpness and Lateral Chromatic Aberration

16mm

20mm

24mm

28mm

35mm
As a general remark, corner line resolution at f/2.8 and f/4 is slightly better in the first version of the lens. However, there is noticeably less lateral chromatic aberration in the corners at f/2.8 and f/4 with the second version of the lens than the first version, especially at 16mm and 20mm. The differences between the two lenses are small and are generally not visible in most photographs.

Do I have a bad version II lens sample?
No, see tests HERE

Linear Distortion at f/8

16mm, 20mm, 24mm, 35mm

Linear distortion with both lenses is remarkably well controlled. Both 16-35mm lenses have very mild barrel distortion at 16mm and mild pincushion distortion at 35mm. The second version of the lens has slightly more pincushion distortion at 35mm than the first version. The second version also has slight pincushion distortion at 24mm.

At 16mm, the first version of the lens has a slightly wider field of view than the second version. The wider "16mm" lens setting field of view is noticeable at infinity focus in landscape application.

Vingetting from f/2.8 to f/8

Lenses were tested at infinity focus using a led illuminated light box with double opaque white diffusion screens.

16mm

20mm

24mm

28mm

35mm


The second version of the lens has slightly more light drop off at f/2.8 at the 16mm and 20mm settings than the first version of the lens.

Out of Focus Background Detail (Bokeh) and Highlights

24mm

At f/2.8, f/4 (and to a lesser extent f/5.6), out of focus background (bokeh) is much more smooth and highlights and reflections of lights in the background are more even and smooth with the second version of the lens.
Focus point is lens cap in the foreground. Background is about 20 feet behind the lens cap. The image has been cropped to a small portion of the total field.

Flare and Internal Reflections

16mm

20mm

Both lenses are very resistant to flare. Internal reflections are better controlled in these test images with the second version of the lens.

Building Photograph Assessing Chromatic Aberration and Image Sharpness

16mm, 24mm, 35mm
Both lenses produce high quality images at f/11/. At the 16mm setting, the first version of the lens produces mild, but noticeable, chromatic aberration in the upper right corner of the field that is not present in the image made with the second version of the lens.

Other Building Photographs

Both lenses give outstanding quality images at f/8 to f/13. It is difficult to find any difference in the excellent image quality that both lenses give from 16mm to 30mm.



Conclusions
Both the EF 16-35mm f/2.8L and the EF 16-35mm f/2.8L II USM lenses produce superb images with minimal distortion across a wide range of angles and apertures. Both lenses have excellent central field imaging performance when shot at f/2.8. It is difficult to see a difference in the high quality images produced by either lens.

Comparison Summary of 1st and 2nd Versions of the Lens

EF 16-35mm f/2.8L II USM (2nd version) EF 16-35mm f/2.8L USM (1st version)
Strengths
  • Lateral chromatic aberration in far corners of the field is corrected better than in the first version of the lens
  • Internal relections from bright light sources are better controlled than in the first version
  • Out of focus backgrounds and highlights are smoother and more even (better bokeh) at f/2.8 and f/4 than with the first version of the lens
Strengths
  • Slightly less linear distorsion at 24mm and 35mm settings than with the second version of the lens
  • Slightly wider field of view at 16mm than with the second version of the lens
  • Sharp corner performances in center and edge of field
  • Uses 77mm diameter filters (more compatible with filter set you use with other L-zooms)
  • Slightly smaller and lighter than second version
  • Less expensive on used market than second version of the lens
Potential Weaknesses for Some Users
  • Slightly more linear distortion at 24mm and 35mm settings than with the first version of lens
  • Slightly narrower field of view at 16mm setting than with the first version of the lens
  • Requires 82mm diameter filters
  • Slightly larger and heavier than first version of the lens
Potential Weaknesses for Some Users
  • More lateral chromatic aberration in corners at 16 and 20mm setting than with the second version of the lens
  • More internal reflections from bright light sources than with second version of the lens

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© 2006-2009, William L. Castleman
First version posted 18 June, 2006. Second version posted 22 July 2009 and revised 05 August 2009