Canon EF 20mm f/2.8 USM
The focal length of this prime lens from Canon is on the edge of ultra wide angle when used on a full frame sensor or the 35mm film it was originally designed for. Even on a cropped sensor, it provides a good angle of coverage. We take a look at how it performs.
- Focal Length 20mm
- Max aperture f/2.8
- Min aperture f/22
- Construction 11/9 elements/groups
- Angle of view (FF) 84º, 62º, 94º (horiz, vert, diag,)
- Filter size 72mm
- Closest focus 0.25m
- Size 77.5x70.6mm
- Weight 0.405kg
- Mount Canon EF
- Price (SRP) £399.99
Build and handling
As with all of Canon’s prime lenses, the build quality is commendable. The construction ( from the users point of view) is simple with the only control being the AF/MF switch situated to the left of the distance window just forward of the mount. This window is marked in both metres and feet and includes a very usable depth-of-field scale. Forward of this is the manual focus ring, and at 18mm wide there is plenty of room for most fingers. Autofocus is carried out by Canon’s USM motor, which is silent and quick in operation. However, the manual override that the system allows did, on this example, feel a little stiff and not quite as smooth as we are used to. It is one of those qualities that employs ‘feel’ more than others and may well be satisfactory to many although my personal reaction was, ‘This is a stiff one’!
The finish is the usual, hard wearing semi-gloss black and the lens has provision for a bayonet style hood, number EW-75II but this is again an optional extra.
The lens is a compact design that belies the internal workings that operate the focussing without either extending the lens, or rotating any part of it during use. This bodes well for anyone using filters, something that is highly likely given the uses this lens could be put to.
Wide-angle lenses are known for distorting things and this lens produced a barrel effect of –2.13%. Although we have seen much better figures from more recently designed optics, with modern software this is easily corrected and is not too disastrous. That is the bad news, because all of the other parameters came up to scratch. We have seen often, that lenses designed for full frame cameras can achieve performances at the edge, when tested on cropped sensors, that better the results given for the centre and this is the case with this lens. It is a plus point that augers well for use on FF cameras. It is also relatively consistent throughout the aperture range, another plus point that makes for a useable piece of kit.
Chromatic aberration, although not a concern as it managed to stay below the threshold where it may become noticeable, did show a little anomaly, in that the figures were worse in the vertical plane when the lens was set to wider apertures. This is on measured test results and cannot be seen with the naked eye!
Contrast, along with colour rendition are up to Canon’s usual standards producing an excellent, slightly warm image.
Even on a cropped sensor, the 20mm field of view can capture some dramatic angles. Here at f/8 and ISO 100 on a Canon 300D
The warm rendition of colour from the lens can only aid landscape photographers. Exposure at f/5.6 and ISO 200 on a Canon 300D
Even on a cropped sensor, the barrel distortion is just starting to show in this harbour scene at f/8 and ISO100 on a Canon 300D
Click on each comparision photo below to view full size versions
Below is our lens test data. To find out how to use these graphs look at this article: How we test lenses
As a wide-angle lens for cropped sensors, this lens falls a little short, with virtually all of the standard zooms giving a wider angle of view. However, on the full frame sensors that Canon are now producing, this lens still warrants its place in their line-up. Nice results combined with ease of use will ensure it will stay there for some time to come.
In summary, the positive points of the EF 20mm f/2.8 USM are:
Good build and finish
Nice focal length on Full Frame cameras
Silent and fast autofocus.
Good image quality
The negative points are:
Not that useful on cropped sensors.
Stiff manual focus ring (on example tested)
Distortion worse than on modern designs (minor point)
Hood not included with lens
Check the latest price of the Canon EF 20mm f/2.8 USM lens here
Test by Ian Andrews www.wildaboutkent.co.uk
On the 1.6x crop, the 20mm focal length looks like 32mm. I personally find that to be a wonderful focal length for general purpose use, and the f2.8 is acceptably fast for some indoor / low-light situations.
On full-frame, the lens is amazingly wide, and can be challenging to frame an interesting picture. Nevertheless, sometimes you need the lens to be that wide, so it's great to have. On the downside, the lens loses sharpness toward the edges, and is more evident on full-frame cameras than on 1.6 crop cameras.
This lack of sharpness is not always a big deal, as the edges of a photo are usually not the focal point.
I'm overall happy with it, and when I want wide, I usually grab my 20mm over my 17-40mm zoom.
More Detail : http://webcamerawebcamera.com/detail.php?id_detail=Canon-EF-20mm-f-2-8-USM-Wide-Angle-Lens-for-Canon-SLR-Cameras-id66a&template=2
Online Printing Companies | Online Print Shop Management System | Custom Sticker Printing | Sticker Printing companies | Printing Service | Product Photographer
Albuquerque Printing Company Arizona Printing Company Atlanta Printing Company Austin Printing Company Baltimore Printing Company Boston Printing Company Charlotte Printing Company Chicago Printing Company Cleveland Printing Company Colorado Printing Company Columbus Printing Company Dallas Printing Company Denver Printing Company Detroit Printing Company Houston Printing Company Indianapolis Printing Company Jacksonville Printing Company Kansas City Printing Company Las Vegas Printing Company Los Angeles Printing Company Louisville Printing Company Memphis Printing Company Miami Printing Company Milwaukee Printing Company Minneapolis Printing Company Nashville Printing Company New Orleans Printing Company New York Printing Company Oakland Printing Company Oklahoma City Printing Company Philadelphia Printing Company Phoenix Printing Company Pittsburgh Printing Company Portland Printing Company Sacramento Printing Company San Antonio Printing Company San Diego Printing Company San Francisco Printing Company San Jose Printing Company Seattle Printing Company Washington Printing Company Toronto Printing Company Vancouver Printing Company Calgary Printing Company Edmonton Printing Company Winnipeg Printing Company Ottawa Printing Company Montreal Printing Company Quebec Printing Company St John's Printing Company Saskatoon Printing Company Regina Printing Company
Albuquerque Sticker Printing Arizona Sticker Printing Atlanta Sticker Printing Austin Sticker Printing Baltimore Sticker Printing Boston Sticker Printing Charlotte Sticker Printing Chicago Sticker Printing Cleveland Sticker Printing Colorado Sticker Printing Columbus Sticker Printing Dallas Sticker Printing Denver Sticker Printing Detroit Sticker Printing Houston Sticker Printing Indianapolis Sticker Printing Jacksonville Sticker Printing Kansas City Sticker Printing Las Vegas Sticker Printing Los Angeles Sticker Printing Louisville Sticker Printing Memphis Sticker Printing Miami Sticker Printing Milwaukee Sticker Printing Minneapolis Sticker Printing Nashville Sticker Printing New Orleans Sticker Printing New York Sticker Printing Oakland Sticker Printing Oklahoma City Sticker Printing Philadelphia Sticker Printing Phoenix Sticker Printing Pittsburgh Sticker Printing Portland Sticker Printing Sacramento Sticker Printing San Antonio Sticker Printing San Diego Sticker Printing San Francisco Sticker Printing San Jose Sticker Printing Seattle Sticker Printing Washington Sticker Printing Toronto Sticker Printing Vancouver Sticker Printing Calgary Sticker Printing Edmonton Sticker Printing Winnipeg Sticker Printing Ottawa Sticker Printing Montreal Sticker Printing Quebec Sticker Printing St John's Sticker Printing Saskatoon Sticker Printing Regina Sticker Printing
Albuquerque Sticker Arizona Sticker Atlanta Sticker Austin Sticker Baltimore sticker Boston sticker Charlotte sticker Chicago sticker Cleveland sticker Colorado sticker Columbus sticker Dallas sticker Denver sticker Detroit sticker Houston sticker Indianapolis sticker Jacksonville sticker Kansas City sticker Las Vegas sticker Los Angeles sticker Louisville sticker Memphis sticker Miami sticker Milwaukee sticker Minneapolis sticker Nashville sticker New Orleans sticker New York sticker Oakland sticker Oklahoma City sticker Philadelphia sticker Phoenix sticker Pittsburgh sticker Portland sticker Sacramento sticker San Antonio sticker San Diego sticker San Francisco sticker San Jose sticker Seattle sticker Washington sticker Toronto sticker Vancouver sticker Calgary sticker Edmonton sticker Winnipeg sticker Ottawa sticker Montreal sticker Quebec sticker St John's sticker Saskatoon sticker Regina sticker
Toronto Printing Vancouver Printing Calgary Printing Edmonton Printing Winnipeg Printing Ottawa Printing Montreal Printing Quebec Printing Saskatoon Printing Regina Printing
Albuquerque Sticker Arizona Sticker Atlanta Sticker Austin Sticker Baltimore sticker Boston sticker Charlotte sticker Chicago sticker Cleveland sticker Colorado sticker Columbus sticker Dallas sticker Denver sticker Detroit sticker Houston sticker Indianapolis sticker Jacksonville sticker Kansas City sticker Las Vegas sticker Los Angeles sticker Louisville sticker Memphis sticker Miami sticker Milwaukee sticker Minneapolis sticker Nashville sticker New Orleans sticker New York sticker Oakland sticker Oklahoma City sticker Philadelphia sticker Phoenix sticker Pittsburgh sticker Portland sticker Sacramento sticker San Antonio sticker San Diego sticker San Francisco sticker San Jose sticker Seattle sticker Washington sticker
Print Trade | Print Wholesale | Print Outsource
Add your message
428 MTF tests
74 in-depth photodo reviews
100+ users join each day
Help the lens community by reviewing or rating a lens today via our lens search
- Fujifilm Fujinon XF 56mm f/1.2 R Lens Review
- Lomography x Zenit 85mm f/2.2 Petzval Art Lens Review
- Pentax DA* 16-50mm f/2.8ED AL [IF] SDM Lens Review
- Olympus 9mm f/8 Fisheye Body Cap Lens Review
- Nikon AF-S Nikkor 35mm f/1.8G Lens Review
- Panasonic Lumix G Vario 12-32mm f/3.5-5.6 ASPH. Lens Review
- Nikon AF-S DX Nikkor 18?55mm f/3.5?5.6G VR II Lens Review
- Dorr 12mm f/7.4 Fisheye Wide-Angle Lens Review
- Lomography x Zenit 85mm f/2.2 Petzval Art Lens Review
- Pentax SMC P-DA 12-24mm f/4.0 ED/AL (IF) Lens Review