Advantages: Excellent quality pictures, Useful wide angle range. Good build quality. Disadvantages: No lens hood, Not compatible with all EOS cameras
Introduction
The Canon EF-S 10-22mmf3.5-f4.5 USM lens is a high quality wide-angle zoom lens that is ideal for landscape, architectural and interior photography.
It is designed to be used with all Canon EOS cameras with an APS-C sized censor and an EF-S lens mount, it cannot be used with Canon full frame or film cameras, also some older EOS models will not accept this lens either.
To see if your camera is compatible with this lens, check your camera for the following.
All Canon EOS cameras have a red spot on the lens mount to denote the lens alignment for EF mount lenses, check to see if your camera has an additional white spot to denote the lens alignment for EF-S mount lenses, if it does, then this lens will fit.
Focal length
This lens has an actual focal length of 10-22mm, but because of the x1.6 crop ...
Advantages: Excellent field of view Disadvantages: none that I have found in months of use
Sigma Wide Zoom Lens.
If you want a panorama of a landscape then you
should try this lens.
Described as 12 - 24mmf5-5.6 EX DG Aspherical HSM
Technical details first.
To fit Sigma, Canon and Nikon (D)
Lens construction Groups/elements 12 / 16
Angle of view (degrees) 122.0 - 84.1
Diaphragm blades 6
Minimum Aperture (wide) F22
Minimum Focus (cm/in) 28/11
Filter size (mm) Rear Mount gelatin filter
Dimensions diameter x length 87/100mm / 3.4" x 3.9"
Weight (g/oz) 615/21.6
Fitted with Hypersonic motor.
Comes with its own carry case with a belt mounting attachment and template to make the gel filters.
This is a lens designed for a digital camera.
It is an ultra wideanglelens (122 degrees)
at 12mm along the diagonal axis and is ideal
for both indoor and landscape photography.
The lens ...
Advantages: Solid build, great image quality, super-wide view Disadvantages: f4 aperture doesn't give very deep bokeh
Overview
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I bought the EF 17-40 f4 L about 3 years ago in order to take urban landcape pictures, as buildings often don't fit into a 28mm "frame". This optic is the widest in the f4 constant aperture series of zoom lenses in the trio that includes the 24-105 super-zoom and the 70-200 telephoto, all of which I now own.
At the time, I owned a 20D body and the 17-40 was my first L Series purchase as the 1.6 crop factor on the sensor meant that you had to go for a super-wideanglelens to get even moderate wideangle shots (17mm becomes 27mm on an APS sensor). Now I own a 5D body and can make full use of the extraordinary wideangle of view this lens can provide. Being a standard EF mount (not EF-S), this lens can be used on all the Canon bodies. My friend had an EF-S 10-22mm but this became redundant when he upgraded ...
