Canon, a Japanese Multinational Corporation, is a well established company in the manufacture of optical and imaging products. They produce products such as cameras, computer printers, steppers and photocopiers. Canon currently introduced its fastest 28 mm wide angle lens called Canon EF 28mm f/1.8 USM SLR (Single Lens Reflex) Lens.
EF 28mm f/1.8 comes with an USM (Ultra Sonic Motor). This feature offers the users with a calm and quick autofocusing function. The auto focusing speed of this lens is similar to or may be a somewhat quicker than the f/2.8 version. The full time manual focus also works very nice in this lens, and this feature is enhanced with the help of a manual focus ring, which makes the focusing purpose nice and quick. This lens is very small and light weight and so it is easy to handle. It weighs about 310 grams, which is comparatively lower than other lenses of this kind. The dimension of this small lens is found to be 73.6mm x 55.6mm in terms of Maximum Diameter x Length. This lens from canon is one of the smallest and light lenses that can be handled very well on DSLR of any size.
The chromatic aberration (CA) is very less, which is found at the corner of the lens. The amount of flare gets reduced to maximum and some barrel distortion is found. It has a decent background blur quality. The vignetting is very low at a large aperture lens. The lens gets constructed with a combination of 10 elements in nine groups. The diagonal angle of view offered by the lens is 75 degrees. The focal length of the lens is 28 mm. The maximum aperture provided by this lens is 1:1.8. The closest focusing distance of this lens is 0.25 m (0.8 feet). The filter size of this lens will be 58 mm. The lens has a very solid construction and good quality plastics were used. The front element of the lens does not rotate and so the using of polarizer is easy.
The price of this Canon EF 28mm f/1.8 USM lens comes about $ 450, which is affordable considering the quality and performance of this lens. This lens can be rated high in terms of its optical quality, mechanical quality, performance and also price. Altogether this Canon EF 28mm f/1.8 USM is a fast wide angle prime lens with an accurate and silent auto-focus function, which are the features that every photographers expect from a lens.
Tue, 23 Feb 2010 14:26:58 +0000
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