วันจันทร์ที่ 29 สิงหาคม พ.ศ. 2554

Lene DSL For Canon DSLR DSLR like

Canon 24mm f/1.4 EF L II USM Lens with Case




Technical Details

  • Super UD glass lens and two types of aspherical elements effectively correct aberration
  • Image Stabilizer gives equivalent effect of a shutter speed three stops faster during hand-held shooting
  • Lens coating to reduces ghosting and flare
  • High dust and moisture resistance for use in harsh environments
  • Closest focus distance of just 45cm at all zoom focal lengths
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Product Description

Canon's new fast aperture prime lens: the EF 24mm f/1.4L II USM. Replacing the EF 24mm f/1.4L USM, the EF 24mm f/1.4L II USM has been completely redesigned to provide an exacting partner lens to Canon's new EOS digital SLRs, the EOS 50D and EOS 5D Mark II. Featuring a 13-element, 10-group lens, the EF 24mm f/1.4L II USM is designed to achieve the highest standards of image quality. Two high-precision GMo aspheric lenses are employed to correct various forms of aberration such as curvature of field and distortion, with a floating mechanism ensuring crisp corner-to-corner detail throughout the focal range. In addition, two UD lenses reduce the chromatic aberration common in wide-angle lenses. A fast, ultra-large maximum aperture of f/1.4 delivers excellent low-light performance, with the circular aperture offering the potential for creative out-of-focus highlights. A focal length of 24mm and a USM focus motor providing full-time manual focus also make the EF 24mm f/1.4L II USM ideal for situations where a wide-angle, high-performance lens is required. It features a fronth thread to accept 77mm optional filters. Circular aperture producing attractive background defocus Inner focusing, ring USM and new AF algorithms for fast and quiet autofocusing Manual focusing enabled even during AF mode (full-time mechanical manual focus) Only environmentally friendly lead-free glass used in lens construction Filter diameter 77 mm / Dimensions (dia x len) 83.5 x 107 mm / Weight 670g (1.5 lb)

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Canon EF 24-105mm f/4 L IS USM Lens for Canon EOS SLR Cameras WHITE RETAIL BOX








Technical Details

  • 24-105mm standard zoom lens with f/4 maximum aperture for Canon EOS SLR cameras
  • 1 Super UD glass element and 3 aspherical lenses minimize chromatic aberration and distortion
  • Ring-type USM system delivers silent but quick autofocus (AF); full-time manual focus
  • Image Stabilizer technology steadies camera shake at up to 3 stops; weighs 23.6 ounces
  • Dust- and moisture-resistant; measures 3.3 inches in diameter and 4.2 inches long; 1-year warranty
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Product Description

Product Description The L-series is Canon's flagship professional lens range, designed to include outstanding image performance, ultimate operability and weather resistance. The EF 24-105mm f/4L IS USM offers a lightweight alternative to the renowned EF 24-70mm f/2.8L USM. offers the highest possible optical quality with no change in aperture over the full focal range of the lens. This allows photographers to set exposure at the widest aperture and zoom all the way through to 105mm without having to vary the shutter speed. Image Stabilizer (IS) dramatically reduces image blur caused by camera shake. Gyro sensors detect unwanted vibrations, triggering the corresponding movement of a correcting lens group perpendicular to the optical axis. This alters the light path, returning the image to its correct position on the sensor or film plane. The 3 stop advantage means that photographers normally shooting a 105mm lens handheld at 1/125 sec can obtain a shake free result with a shutter speed as low as 1/15 sec, for vastly extended options in low light conditions. The ring-type USM motor found in the EF 24-105mm f/4L IS USM employs ultra-sonic frequency vibrations to drive auto focus with unrivalled speed and near-silent operation. A powerful CPU and improved AF algorithm contribute to speed performance. Good holding torque stops the lens with precision and accuracy, the instant it arrives at the correct focus point and without overshoot. Photographers can choose manual focus instantly and at any time simply by moving the manual focus ring without first having to switch out of auto focus mode. Circular aperture producing attractive background defocus Inner focusing, ring USM and new AF algorithms for fast and quiet autofocusing Manual focusing enabled even during AF mode (full-time mechanical manual focus) Only environmentally friendly lead-free glass used in lens construction Filter diameter 77 mm / Dimensions (dia x len)

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