Canon EF 20-35mm f/3.5-4.5 USM

Last updated (25 July’10):
- Review by

The Canon EF 20-35mm f/3.5-4.5 USM features 20 – 35mm at focal length with maximum aperture of f/3.5-4.5. The lens construction has 12 elements in 11 groups and has diagonal angle of view at 94 degrees. Focus adjustment: Inner focusing system with USM, Closest focusing distance at 0.34m/1.1 ft and has a filter size of 77mm. The Canon EF 20-35mm f/3.5-4.5 USM lens weighs 340g and it measures 3.3 inches in diameter and 2.7 inches long.

Canon EF 20-35mm f/3.5-4.5 USM
Overall Rating: ★★★☆☆ | Latest Price Info

Expert Reviews

Canon EF 20-35mm f/3.5-4.5 USM Reviews compares the Canon EF 20-35mm f/3.5-4.5 USM to Sigma 20/1.8 and writes;
“The Canon starts showing decent performance. Center sharpness is superb, colors are rich and saturated. Corners still have to improve — both in sharpness and in light…”
rating: N/A reviews the Canon EF 20-35mm f/3.5-4.5 USM and writes;
“this Canon ultrawide Zoom lens offers an excellent cost-performance ratio for those who don’t always required true professional grade of built quality and, arguably on par performance at maximum apertures like the f/2.8L in image resolution.”
rating: N/A

Photozone reviews the Canon EF 20-35mm f/3.5-4.5 USM and writes;
“As mentioned above the Canon lens is a full frame lens so on APS-C it can take advantage of the sweet spot effect. As a consequence vignetting is relatively low even at wide-open aperture. At f/5.6 the issue is pretty negligible.. Under optimal conditions the lens is capable to deliver an excellent center resolution and very good borders throughout the range.”
Rating: ★★★☆☆

SLRLensreview reviews the Canon EF 20-35mm f/3.5-4.5 USM and writes;
“The lens continued to produce very decent, for a wide angle zoom that is, results even on a full frame body. Performance in the center was quite solid throughout the zoom range and across all tested aperture settings.”
rating: N/A

The-digital-picture reviews the Canon EF 20-35mm f/3.5-4.5 USM and writes;
“It is reasonably sharp wide open and improves slightly when stopped down (narrower aperture selected). Corners are a bit soft wide open. Vignetting is strong at wide open apertures – especially at the widest angle focal lengths. The Canon EF 20-35mm f/3.5-4.5 USM Lens shows some CA (Chromatic Aberration) but it is rather well controlled as is flare.”
rating: N/A

User Opinions

Canon EF 20-35mm f/3.5-4.5 USM User Reviews

Great for travel | Rating: ★★★★★
“This is a wonderful lens. It is especially nice for travel photos in cities, indoors, and for some landscapes. You also need to get a hood because of the wide angle of view. In addition, you need a filter to protect the lens as well as function as a filter -haze or polarizer.” – by A Customer

Good lens but is it really worth $390? | Rating: ★★★★☆
“I use this lens at work every day, and in general it’s a very good lens. The optics are sharp, and the focus, athough not fast, is not something to complain about. “ – by paparazzi83

Affordable wide angle | Rating: ★★★★★
“I used the 20-35 on my Rebel XT which makes it equivalent to 32 to 56mm. It’s not as wide as the EF-S 18-55 that came with the camera but the quality is much better. The ring type USM focuses fast and quietly. Overall, a great value for the price. “ – by Fernando Valenzuela

Great Lens | Rating: ★★★★★
“I love it. Im no pro but the wide angle is great for family pictures, weddings ect.” – by J. M. Vuckovich

Fine performance for the price | Rating: ★★★★☆
“..It’s very versatile with good performance. If used at medium apertures under the same lighting conditions, I seriously doubt anyone would be able to see any practical difference in photos made with this lens compared to one of the much more expensive L-series Canon zooms. For the price, it’s very good value.” – by A photographer

More user opinions | Write your opinion


Canon EF 20-35mm f/3.5-4.5 USM Sample Photos

- Canon EF 20-35mm f/3.5-4.5 USM Sample Photos @
- Canon EF 20-35mm f/3.5-4.5 USM Sample Photos @
- Canon EF 20-35mm f/3.5-4.5 USM Sample Photos @

Features & Specifications

Canon EF 20-35mm f/3.5-4.5 USM Specifications

A highly portable lens with high optical performance and a light weight of 12 oz. (340g). A very practical ultra-wide-angle zoom. The large front lens group minimizes peripheral darkening, and the flare-blocking diaphragm minimizes flare. Also, with lens group 2 being the zoom group, distortion is corrected.

A superior performance ultra wide angle zoom lens, covering the entire range of popular wide-angle focal lengths. A ring-type USM and an inner focus design provide fast and silent AF, along with full-time manual focus override. Priced within the range of serious photo enthusiasts, it’s a great all-around choice.

See also: Canon Lenses | Lens Reviews

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