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Even More
Canon items for sale....
Canon celebrates 50
years of single-lens reflex camera sales
More than 50-million units
produced since 1959
The Canon EF-S 10-22mm f/3.5-4.5 USM
Ultra-Wide Angle lens is Canon's widest focal length lens in
its current EF/EF-S line of lenses. Wide may be an
understatement. A 10mm lens used on a APS-C format sensor
camera would yield the same equivalent field-of-view as a 16mm
lens would if used on a 35mm film SLR or a full frame DSLR. The
10-22 is the 1.6x crop camera equivalent of a 16-35mm
lens.
For some time, a true wide-angle lens
has not been available through Canon for those photographers
using a APS-C format sensor camera. The nearest lens available
would be a 14mm prime, but this would most probably fall
outside of the average users price range. The next most likely
option would be either of the Canon 16-35mm or 17-55mm zoom
lenses. Even then, the equivalent field of view would only be
around 26mm. Enter the 10-22.
Wide angle lenses are invaluable in
several photographic niches. They truly show their worth in
landscape photography in particular. No other class of lens has
the ability to capture the great vistas of mother nature
better. You can see from sunrise to sunset. No other set of
lenses enables the photography to capture just so much "stuff".
They are also used in both architectural photography, where
they shine in capturing interior and exterior elements.
Real-estate agents fall in love with the ability to show entire
house interiors in just one shot. Wide-angle lenses can also be
very useful in flushing out the creative side of most ever
photographer. The natural distortion involved with the wide
field-of-view creates some very unusual changes in perspective
in everyday objects.
You first notice the Canon EF-S
10-22mm lens is very well made. It does not have the "cheap"
feel that is sometimes found in some of other Canon lenses. The
focus and distance controls operate smoothly. The lens achieves
focuses rather quickly and also quietly due to the use of a
ring-type USM focusing motor. You also notice that the lens
barrel neither extends or rotates during focusing or when
adjusting the focal length. This is important as you can use a
circular polarizer with this lens, although you may see some
slight vignetting if you choose not use a slim polarizer. In
most cases, this should not be a problem.
Article By Jim Back
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