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Feb 232010

Sigma 10 20mm f 4 5 6 EX DC HSM Lens for Canon Digital SLR Cameras


Designed exclusively for Canon digital SLR cameras, the ultra-wide-angle 10-20mm offers a view from 102.4 to 63.8 degrees, making it ideal for landscape photography and other vast applications. The lens is distinguished by its three special low dispersion (SLD) glass elements, which effectively compensate for color aberration, and its aspherical lenses, which provide maximum correction for distortion and various aberrations. As a result, the lens produces an extremely high image quality throughout the entire zoom range. The HSM-equipped models, meanwhile, produce fast autofocus (AF) speeds and quiet shooting while still letting you perform full-time manual focus. Other details include a minimum focusing distance of 9.4 inches at all focal lengths and an integral petal-type hood to block out extraneous light.

Lens Elements and Coating
The new multilayer lens coating and lens design reduce flare and ghost–a common problem with digital cameras–while also creating an optimal color balance throughout the entire zoom range. At the same time, the lens offers three SLD glass elements that effectively compensate for color aberration, along with a piece of glass mold and two hybrid aspherical lenses that offer excellent correction for distortion and all types of aberration.

Inner Focusing System and HSM
The lens incorporates an internal focusing system that eliminates front lens rotation, letting you use a petal-type hood to protect from additional glare. And models equipped with a Hyper-Sonic Motor (HSM) produce silent, high-speed autofocus and full-time manual focus for Sigma, Canon, and Nikon D-mount lenses.

Best Consumer Lens
The Sigma 10-20mm lens is so respected that it was named the best consumer lens in Europe (2006) by the Technical Image Press Association (TIPA), a collection of 31 publications from 12 countries. According to TIPA, the 10-20mm lens offers a versatile range of wide-angle focal lengths, a good optical performance, and a budget price, making it an excellent investment for owners of DSLRs with APS-C format sensors. Its sharpness remains constant throughout the zoom range, and its compact size makes it an ideal companion for shooting travel, landscapes, or architectural subjects.

  • Lens construction: 14 elements in 10 groups
  • Angle of view: 102.4 to 63.8 degrees
  • Number of diaphragm blades: 6
  • Minimum aperture: f/22
  • Minimum focusing distance: 9.4 inches
  • Maximum magnification: 1:6.7
  • Filter size: 77mm
  • Dimensions: 3.3 inches in diameter and 3.2 inches long
  • Weight: 16.4 ounces
Price: $ Buy/More Info
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Feb 152010

Nikon 24 70mm f 2 8G ED AF S Nikkor Wide Angle Zoom Lens


The fast, wide-angle to medium telephoto AF-S zoom lens from Nikon is optimized for edge-to-edge sharpness on both the Nikon FX (23.9 x 36mm) and DX-format image sensors, with focus as close as 14.9 inches. Enhanced optical formulas, engineered to produce exceptional sharpness, contrast and color, render outstanding image integrity, while two ED (Extra-low Dispersion) elements and PGM aspherical lenses futher control chromatic aberrations at even the widest aperture settings It has an exclusive Nano Crystal Coat to reduce ghosting and flare for even greater image clarity. The Nikon Silent Wave Motor (SWM) enables ultra high-speed autofocusing with exceptional accuracy and powerful, super-quiet operation, while the Internal Focus (IF) provides fast and quiet auto focusing without changing the length of the lens and M/A Focus Mode switch enables quick response to changing situations between Auto and Manual focus operation. With all these features, as well as an incredible resilience to dust, water and general wear and tear, the Nikon 24-70mmf/2.8G ED Lens is a welcome way to meet your telephotography needs. Internal Focus (IF) provides auto focusing without changing the length of the lens M/A Focus Mode switch enables quick changing between Auto and Manual focus operation.
Price: $ Buy/More Info
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Feb 052010

Sigma 10 20mm f 4 5 6 EX DC HSM Lens for Nikon Digital SLR Cameras


Designed exclusively for Nikon digital SLR cameras capable of wide-angle photography, the Sigma 10-20mm f/4-5.6 lens is a powerful tool for landscape photography and other wide-angle applications. The lens offers an ultra-wide angle of view of 94.5 to 56.8 degrees, with three special low dispersion (SLD) glass elements and three aspherical lenses providing optimum image quality throughout the entire zoom range. The lens also incorporates a Hyper Sonic Motor (HSM) to ensure quiet, high-speed autofocusing in addition to full-time manual focusing. Other features include a close focusing distance of 9.4 inches, a non-rotating lens barrel that perfectly suits the petal-shaped lens hood (included), and a one-year warranty.

Specifications

  • Focal length: 10-20mm
  • Maximum aperture: f/4-5.6
  • Lens construction: 14 elements in 10 groups
  • Angle of view: 94.5 to 56.8 degrees
  • Number of diaphragm blades: 6
  • Minimum aperture: f/22
  • Minimum focusing distance: 9.4 inches
  • Maximum magnification: 1:6.7
  • Mount: Nikon
  • Filter size: 77mm
  • Filter size: Petal-type hood
  • Dimensions: 3.3 inches in diameter and 3.4 inches long
  • Weight: 17.5 ounces
  • Warranty: 1 year
Price: $ Buy/More Info
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Feb 052010

Sigma 18 50mm f 3 5 5 6 DC HSM Wide Angle Zoom Lens for Nikon D90 D80 D70 D60 D50 D40 D40X D5000 D3000 D700 D300 D200 and D3 Digital SLRs


Exclusively designed to suit the characteristics of digital SLR cameras. The image circle was designed to match the size of the image sensors of most digitalSLR cameras and this has resulted in a compact lightweight lens. Sigma has incorporated an HSM Hyper Sonic Motor into the 18-50mm F3.5-5.6 DC HSM, that now allows quite and high-speed autofocusing with all Nikon DSLR cameras. Aspherical lens and Super Multi Layer Coating are used for excellent lens performance. High image quality is assured throughout the entire zoom range.

Compact-Lightweight zoom lens has a maximum diameter of 60mm (2.4in.), overall length of 69.6mm (2.4in.) and weight of only 250gr (8.8 ounces) and filter size of 58mm. Compact dimensions offers superb handling and mobility. The use of aspherical lenses provides correction for various aberrations throughout the entire zoom range and produce high level of optical performance.

Sigma took digital characteristics into consideration when designing the lens power layout and created the most suitable lens that makes high quality images a reality throughout the entire zoom range. We used the most appropriate coating for digital products to cut down flare and ghost caused by digital SLR cameras and to produce the best color balance. It can be used with the supplied lens hood to block out extraneous light.

18-50mm F3.5-5.6 DC HSM zoom lens has a minimum focusing distance of 25cm (9.8in.) at all focal lengths and is capable of macro photography with a maximum magnification ratio of 1:3.5. The focus ring provides easy operation in manual mode. A distance scale on the focus ring is an easy to use and convenient addition.

Price: $ Buy/More Info
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Jan 142010

Sigma 18 50mm f 3 5 5 6 DC Aspherical Zoom Lens for Olympus and Panasonic Digital SLR Cameras


Exclusively designed to suit the characteristics of digital SLR cameras featuring APS-C size image sensor. The image circle was designed to match the size of the image sensors of most digital SLR cameras and this has resulted in a compact lightweight lens. The use of aspherical lenses provides correction for various aberrations and makes high quality images a reality throughout the entire zoom range.
Price: $ Buy/More Info
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