AW Computers And Software Products ExcitingAds :: Exciting Ads

Modern 10 LED House numbers
Modern 10 LED House numbers
$143.00
Modern 10 house numbers are machined from a solid piece of aluminum, finished in a brushed metal and hardened with an...[Read More]
Buy Now

Sitemap

 
"Sigma 10-20mm f/3.5 EX DC HSM Lens for Nikon Mount"
"The Sigma 10-20mm f/3.5 EX DC HSM Autofocus Zoom is a super-wide angle lens with a maximum aperture of f/3.5 throughout the entire zoom range, ensuring high image quality. The maximum aperture of f/3.5 allows enough light in to make it a great choice for indoor shooting as well as landscapes and creative portraiture.With its wide angle view from 102.4 degrees, this lens can empower the photographer to produce creative images with exaggerated perspective. This lens has a Super Multi-Layer coating that coating reduces flare and ghosting. With a HSM (Hyper-Sonic Motor), the lens operates quietly and at high speed in both autofocus and full-time manual modes.The lens design incorporates an inner focusing system which eliminates front lens rotation, making the lens particularly suitable for using the Petal-type hood, reducing extraneous light and reducing internal reflection.Two ELD (Extraordinary Low Dispersion) glass elements and a SLD (Special Low Dispersion) glass element provide excellent correction of color aberration. Four aspherical lenses provide correction for distortion and allow compact and lightweight construction. This Sigma lens has a minimum focusing distance of 9.4 inches (24cm) throughout the entire zoom range and a maximum magnification ratio of 1:6.6."
Price: 329.99

"Sigma 17-50mm f/2.8 EX DC OS HSM Lens For Canon Mount"
"The Sigma 17-50mm f/2.8 EX DC OS HSM Zoom Lens is an incredibly versatile, lightweight, and compact lens designed specifically for digital SLR cameras with APS-C size sensors. The lens has a fast f/2.8 maximum aperture throughout the entire zoom range. It features a construction of 17 elements in 13 groups with glass that corrects for flare, ghosting and all types of aberrations. It produces high contrast and sharp images throughout the zoom range even at its maximum aperture.Sigma's OS (Optical Stabilization) feature allows you to shoot at shutter speeds approximately 4 stops slower than would otherwise be possible. This means your images will look sharper, even when shooting without a tripod in low existing light or at maximum range with a flash. This lens is also equipped with Sigma's Hyper-Sonic Motor (HSM) which provides for fast and quiet autofocusing.The Sigma 17-50mm f/2.8 is ideal for many photo opportunities particularly landscapes and portraits, but with its wide focal range and a close focusing distance down to 11"" (28cm) you can capture images with unique perspectives. It will quickly become one of the most important lenses in your gear bag.Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras."
Price: 193.99

"Sigma 17-50mm f/2.8 EX DC OS HSM Lens For Nikon Mount"
"The Sigma 17-50mm f/2.8 EX DC OS HSM Zoom Lens is an incredibly versatile, lightweight, and compact lens designed specifically for digital SLR cameras with APS-C size sensors. The lens has a fast f/2.8 maximum aperture throughout the entire zoom range. It features a construction of 17 elements in 13 groups with glass that corrects for flare, ghosting and all types of aberrations. It produces high contrast and sharp images throughout the zoom range even at its maximum aperture.Sigma's OS (Optical Stabilization) feature allows you to shoot at shutter speeds approximately 4 stops slower than would otherwise be possible. This means your images will look sharper, even when shooting without a tripod in low existing light or at maximum range with a flash. This lens is also equipped with Sigma's Hyper-Sonic Motor (HSM) which provides for fast and quiet autofocusing.The Sigma 17-50mm f/2.8 is ideal for many photo opportunities particularly landscapes and portraits, but with its wide focal range and a close focusing distance down to 11"" (28cm) you can capture images with unique perspectives. It will quickly become one of the most important lenses in your gear bag. Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras."
Price: 192.99

"Sigma 4.5mm f/2.8 EX DC Circular Fisheye HSM Lens For Canon Mount"
"The Sigma 4.5mm f/2.8 EX DC HSM Lens is a spherical fisheye lens that easily captures a full 180° view in all directions, in a circular image. Even the most familiar and mundane of subjects can be portrayed with startlingly fresh new expressions through exaggerated perspectives and unusual distortion effects. It is well suited for academic and technical measurements such as solid angle measurements, cloud cover measurements & virtual reality. Having the HSM (Hyper Sonic Motor) incorporated into this lens allows for focusing to be quieter and more responsive. This lens provides the equivalent focal range of approx. 7.2mm when used with a Canon digital SLR camera.DC lenses are exclusively designed for digital SLR cameras. The image circle (rear of lens) is made to match the smaller dimensions used for the image sensor on digital cameras. As a result these lenses are also more compact and lightweight, and are better matched to digital SLR cameras. Not suitable for 35mm film SLR cameras or for any digital SLR camera with image sensor bigger than APS-C size, e.g. 5D, 1Ds, 1Ds Mark II or Kodak Pro SLR/c."
Price: 502.99

"Sigma APO 70-200mm f/2.8 EX DG OS HSM Lens For Nikon Mount"
"The Sigma 70-200mm f/2.8 EX DG APO OS HSM for Nikon is the second generation of large-aperture telephoto zoom lenses incorporating Sigma's OS (Optical Stabilizer) anti-shake system. It offers the equivalent of shooting at shutter speeds 3 to 4 stops slower than without OS, thus allowing handheld telephoto zoom shooting even in poorly lit conditions. Its HSM ensures quiet and high speed AF as well as full-time manual focusing.It features a large maximum aperture of f/2.8 that remains constant throughout the zoom range, making it incredibly valuable when shooting in low light situations such as wedding or other events. It is also great when shooting fast-moving subjects such as sports, when fast shutter speeds are needed to capture fleeting moments. The 70-200mm f/2.8 is fast and versatile and at a length of 7.8 (19.8cm) will be a tool that seldom sees the inside of your camera bag. The lens comes with a petal-type lens hood plus an adapter to extend its length for users with APS-c cameras. Two FLD (""F"" Low Dispersion) glass elements, which have the performance equal to expensive fluorite glass, and three SLD (Special Low Dispersion) glass elements, combine to provide excellent reduction of aberrations and image quality. The rounded 9 blade diaphragm creates an attractive blur to the out of focus images (bokeh). Sigma has managed to make the lens more compact than its predecessor, measuring only 7.8"" (8.64cm) in length. The Super Multi-Layer lens coating reduces flare ghosting and assures high image quality throughout the entire zoom range. The exterior of this lens is EX-finished to denote the superior build and optical quality, and to enhance its appearance. The lens DG designation translates to large-aperture lenses with wide angles and short minimum focusing distances. With an abundance of peripheral illumination, they are ideal lenses for Digital SLR Cameras while retaining suitability for traditional 35mm SLRs."
Price: 626.99

"Sigma 8-16mm f/4.5-5.6 DC HSM Lens For Canon Mount"
"The Sigma 8-16mm F4.5-5.6 DC HSM is an ultra-wide zoom that has a 35mm equivalent angle of view of a 12-24mm lens when used on DSLRs with APS-C size image sensors. Sigma's FLD glass elements, equal to fluorite glass, correct for distortions and color aberrations to deliver beautiful high contrast images.The lens has a minimum focusing distance of 9.4"" (24cm) allowing you to get in close to a subject to create exaggerated perspectives. This super wide angle zoom is perfect for shooting landscape photography, architecture, building interiors, photojournalism, wedding photography, group pictures and a wide variety of other shooting opportunities you may encounter. Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras."
Price: 379.99

"Sigma 8-16mm f/4.5-5.6 DC HSM Lens For Nikon Mount"
"The Sigma 8-16mm F4.5-5.6 DC HSM is an ultra-wide zoom that has a 35mm equivalent angle of view of a 12-24mm lens when used on DSLRs with APS-C size image sensors. Sigma's FLD glass elements, equal to fluorite glass, correct for distortions and color aberrations to deliver beautiful high contrast images.The lens has a minimum focusing distance of 9.4"" (24cm) allowing you to get in close to a subject to create exaggerated perspectives. This super wide angle zoom is perfect for shooting landscape photography, architecture, building interiors, photojournalism, wedding photography, group pictures and a wide variety of other shooting opportunities you may encounter. Vignetting will occur if the lens is used with digital cameras with image sensors larger than APS-C size or 35mm SLR cameras."
Price: 369.99

"Sigma 8mm f/3.5 EX DG Circular Fisheye Lens For Canon Mount"
"The Sigma 8mm f/3.5 EX DG is a spherical fisheye lens that easily captures a full 180° view in all directions, in a circular image. Even the most familiar and mundane of subjects can be portrayed with startlingly fresh new expressions through exaggerated perspectives and unusual distortion effects. Well suited for academic and technical measurements such as solid angle measurements, cloud cover measurements & virtual reality.This improved version offers a brighter f/3.5 aperture, with a vastly improved minimum focusing distance of 5.3"" (13.5 cm) and a maximum magnification of 1:4.6. This circular fisheye lens can be used to create circular images with an angle of view of 180°. It permits creative expression through the exaggerated perspectives and unusual distortion effects.The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. This extreme fisheye lens is unique as it incorporates an auto focus system to get accurate focusing that might be difficult through finder due to extremely large depth of field. This lens is useful for academic/technical applications such as solid angle measurements, because it provides a quantifiable angle/area relationship. It is widely used in science and industry for cloud cover measurements, weather observation, astronomical studies, agriculture etc. The lens is supplied with an insertion-type gelatin filter holder at the rear allowing the use gelatin filter."
Price: 427.99

"Sigma 8mm f/3.5 EX DG Circular Fisheye Lens For Nikon Mount"
"The Sigma 8mm f/3.5 EX DG is a spherical fisheye lens that easily captures a full 180° view in all directions, in a circular image. Even the most familiar and mundane of subjects can be portrayed with startlingly fresh new expressions through exaggerated perspectives and unusual distortion effects. Well suited for academic and technical measurements such as solid angle measurements, cloud cover measurements & virtual reality.This improved version offers a brighter f/3.5 aperture, with a vastly improved minimum focusing distance of 5.3"" (13.5 cm) and a maximum magnification of 1:4.6. This circular fisheye lens can be used to create circular images with an angle of view of 180°. It permits creative expression through the exaggerated perspectives and unusual distortion effects.The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. This extreme fisheye lens is unique as it incorporates an auto focus system to get accurate focusing that might be difficult through finder due to extremely large depth of field. This lens is useful for academic/technical applications such as solid angle measurements, because it provides a quantifiable angle/area relationship. It is widely used in science and industry for cloud cover measurements, weather observation, astronomical studies, agriculture etc. The lens is supplied with an insertion-type gelatin filter holder at the rear allowing the use gelatin filter."
Price: 459.99

"Sigma AF 1.4X EX DG Teleconverter Lens For Canon Mount"
"The Sigma 1.4x DG EX APO Tele Converter (also known as a tele-extender) will multiply the focal length of the existing lens by 1.4x, and will cut back the amount of light by one f/stop. For example, using a 1.4x teleconverter with a 300 mm lens will effectively increase the focal length to 420mm. A lens set to f/2.8 will now be f/4.This APO teleconverter can be mounted between select lenses and the camera body to increase the focal length by the power of 1.4 or 2. The new multi layer coating reduces flare and ghost, which is a common problem with digital cameras. They demonstrate best performance with DG series lenses. They also offer maximum photography magnification by 1.4 x or 2x, without any variation in the minimum focusing distance. Compact and lightweight, these teleconverters convert your lenses into longer focal-length lenses, so you don't have to do a lot of unnecessary footwork"
Price: 161.99

"Sigma AF 1.4X EX DG Teleconverter Lens For Nikon Mount"
"The Sigma 1.4x DG EX APO Tele Converter (also known as a tele-extender) will multiply the focal length of the existing lens by 1.4x, and will cut back the amount of light by one f/stop. For example, using a 1.4x teleconverter with a 300 mm lens will effectively increase the focal length to 420mm. A lens set to f/2.8 will now be f/4.This APO teleconverter can be mounted between select lenses and the camera body to increase the focal length by the power of 1.4 or 2. The new multi layer coating reduces flare and ghost, which is a common problem with digital cameras. They demonstrate best performance with DG series lenses. They also offer maximum photography magnification by 1.4 x or 2x, without any variation in the minimum focusing distance. Compact and lightweight, these teleconverters convert your lenses into longer focal-length lenses, so you don't have to do a lot of unnecessary footwork"
Price: 164.99

"Sigma AF 15mm f/2.8 EX DG Fisheye Lens For Canon Mount"
"The Sigma 15mm f/2.8 EX DG Diagonal Fisheye is a full-frame fisheye auto focus lens that fills the entire 35mm negative with a full 180 degree diagonal field of view. This unique autofocus lens enables you to create a variety of unusual compositions even when shooting ordinary subjects. The improved DG lens coating reduces flare and ghosting, which is a common problem of digital cameras, and also creates an optimum color balance.Since most Digital SLR cameras use a smaller image sensor size (APS-C) than 35mm film cameras, 180 degree angle-of-view can not be obtained with Digital SLR cameras. With those cameras only the center part of the frame is used, therefore, peripheral distortion will be very small. The super wide angle of this lens makes it ideal for use with digital SLR cameras, providing a focal view of approximately 23mm."
Price: 359.99

"Sigma AF 15mm f/2.8 EX DG Fisheye Lens For Nikon Mount"
"The Sigma 15mm f/2.8 EX DG Diagonal Fisheye is a full-frame fisheye auto focus lens that fills the entire 35mm negative with a full 180° diagonal field of view. This unique lens enables you to create a variety of unusual compositions even when shooting ordinary subjects. The improved DG lens coating reduces flare and ghosting, which is a common problem of digital cameras, and also creates an optimum color balance. Since most Digital SLR cameras use a smaller image sensor size (APS-C) than 35mm film cameras, 180° angle-of-view cannot be obtained with APS-C digital SLR cameras. With those cameras only the center part of the frame is used, therefore, peripheral distortion will be very small. The super wide angle of this lens makes it ideal for use with digital SLR cameras, providing a focal view of approximately 23mm. Autofocus on this lens is not supported on Nikon D40 or D60 cameras. Accepts removable gelatin filters in a holder near the rear of the lens"
Price: 356.99

"Sigma AF 2X EX DG APO Teleconverter Lens For Canon Mount"
"The Sigma 2x EX APO Tele Converter (also known as a tele-extender) will multiply the focal length of the existing lens by 2x, and will cut back the amount of light by 2 f/stops. For example, using a 2x teleconverter with a 300 mm lens will effectively increase the focal length to 600 mm. A lens set to f/2.8 will now be f/5.6. The DG denotes added coating that achieves the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor.Sigma APO Tele Converter 1.4x and 2x are dedicated teleconverter lenses. Due to the high optical quality of this teleconverter, this item will only fit and work with a select list of lenses. Please click here for a compatibility chart of all compatible lenses."
Price: 199.99

"Sigma AF 2X EX DG APO Teleconverter Lens For Nikon Mount"
"The Sigma 2x EX APO Tele Converter (also known as a tele-extender) will multiply the focal length of the existing lens by 2x, and will cut back the amount of light by 2 f/stops. For example, using a 2x teleconverter with a 300 mm lens will effectively increase the focal length to 600 mm. A lens set to f/2.8 will now be f/5.6. The DG denotes added coating that achieves the best color balance whilst cutting down on ghosting caused by reflections from the digital image sensor.Sigma APO Tele Converter 1.4x and 2x are dedicated teleconverter lenses. Due to the high optical quality of this teleconverter, this item will only fit and work with a select list of lenses. Please click here for a compatibility chart of all compatible lenses."
Price: 191.99

"Sigma APO 50-500mm f/4.5-6.3 DG OS HSM Lens For Canon Mount"
"This 50-500mm f/4.5-6.3 APO DG OS HSM Lens for Canon EOS from Sigma is a zoom lens for digital SLR cameras with a Canon EF or EF-S lens mount. The lens has a standard to ultra telephoto zoom range that is ideal for nature, wildlife, or sports photography. The range translates into an equivalent 75-750mm when used with digital SLR cameras with an APS size chip. The lens is also compatible with full frame cameras. You can even increase your telephoto range by using the Sigma APO teleconverters.The OS (Optical Stabilizer) system minimizes image blur caused by camera shake, and offers the equivalent of shooting at a shutter speed 3-4 stops faster. This allows handheld telephoto zoom shooting even in poorly lit conditions.The use of the OS (Optical Stabilizer) system, HSM (Hyper Sonic Motor), APO apochromatic design, four elements of SLD (Special Low Dispersion) glass, and multicoated optics all enable this lens to provide a high level of performance throughout its entire zoom range. A rear focus system insures quick, convenient manual focus and a non-rotating front barrel.The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance, while cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration, which is a serious problem for digital SLR cameras."
Price: 679.99

"Sigma APO 50-500mm f/4.5-6.3 DG OS HSM Lens For Nikon Mount"
"This 50-500mm f/4.5-6.3 APO DG OS HSM Lens for Nikon from Sigma is a zoom lens for digital SLR cameras with a Nikon lens mount. The lens has a standard to ultra telephoto zoom range that is ideal for nature, wildlife, or sports photography. The range translates into an equivalent 75-750mm when used with digital SLR cameras with an APS size chip. The lens is also compatible with full frame cameras. You can even increase you telephoto range by using the Sigma APO teleconverters.The OS (Optical Stabilizer) system minimizes image blur caused by camera shake, and offers the equivalent of shooting at a shutter speed 3-4 stops faster. This allows handheld telephoto zoom shooting even in poorly lit conditions.The use of the OS (Optical Stabilizer) system, HSM (Hyper Sonic Motor), APO apochromatic design, four elements of SLD (Special Low Dispersion) glass, and multicoated optics all enable this lens to provide a high level of performance throughout its entire zoom range. A rear focus system ensures quick, convenient manual focus and a non-rotating front barrel.The improved DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance, while cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration, which is a serious problem for digital SLR cameras."
Price: 648.99

"Sigma APO 70-300mm f/4-5.6 DG Macro Lens For Nikon Mount"
"Sigma's 70-300mm f/4-5.6 APO DG Macro Lens is one of several tele zoom lenses. By incorporating the autofocusing motor into the lens itself, it can now autofocus with all Nikon DSLR cameras (including the D40, D40x, etc.). In addition, with the motor built into the lens, focusing will be quieter and more responsive.This lens is a compact Apochromatic tele zoom lens incorporating two Special Low Dispersion glass elements in the front lens group, plus one Special Low Dispersion glass element in the rear lens group, to minimize chromatic aberration. The DG lens design corrects for various aberrations. This lens is specially coated to get the best color balance while also cutting down on ghosting caused by reflections from the digital image sensor.Macro photography with a 1:4 maximum close-up magnification at focal lengths from 70mm to 200mm and 1:2 maximum close-up magnification at the 300mm focal length. Switch for changeover to macro photography at focal lengths between 200mm and 300mm with a maximum close-up magnification from 1:2.9 to 1:2. The built-in autofocusing motor ensures quiet and high-speed auto focusing with full time manual focus override. The lens materials used in this product are lead and arsenic free ecological glass"
Price: 149.99

"Sigma 4.5mm f/2.8 EX DC Circular Fisheye HSM Lens For Nikon Mount"
"The Sigma 4.5mm f/2.8 EX DC HSM Lens is a spherical fisheye lens that easily captures a full 180° view in all directions, in a circular image. Even the most familiar and mundane of subjects can be portrayed with startlingly fresh new expressions through exaggerated perspectives and unusual distortion effects. It is well suited for academic and technical measurements such as solid angle measurements, cloud cover measurements & virtual reality. Having the HSM (Hyper Sonic Motor) incorporated into this lens allows for focusing to be quieter and more responsive. In addition, the HSM feature gives this lens the capability to auto focus with all Nikon DSLR cameras (including the D40 and D40x). This lens provides the equivalent focal range of approx. 6.75mm when used with a Nikon digital SLR camera.DC lenses are exclusively designed for digital SLR cameras. The image circle (rear of lens) is made to match the smaller dimensions used for the image sensor on digital cameras. As a result these lenses are also more compact and lightweight, and are better matched to digital SLR cameras. Not compatible with 35mm cameras or digital cameras using full-size image sensors (e.g. D3, Kodak DCS14n or DCS PRO SLR/n)."
Price: 529.99

"Sigma AF 105mm f/2.8 DG OS Macro Lens For Nikon Mount"
"The Sigma 105mm f/2.8 EX DG OS Macro Lens for Nikon AF Cameras delivers superb, distortion-free images throughout its broad focus range, from infinity telephoto to life-size (1:1) macro, as close as 12.2"" (31 cm) without accessories. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent correction for all types of aberration and distortion. Its non-rotating front lens group makes it easier to work with polarizing filters. A focus limiter helps divide the broad focus range into more manageable chunks. The ""focus-free"" mechanical design allows the lens to autofocus without any interference from the manual focus ring, making it easy to hold the lens without affecting the speed or normal operation of the autofocus function. Rugged mechanical construction also makes it durable enough for even the heaviest use required by professional photographers. An ideal lens for a wide variety of applications from nature photography to portraiture. The improved DG lens design for this lens corrects for various aberrations. This macro lens is specially coated to get the best color balance while cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. Sigma's own proprietary OS (Optical Stabilizer) system enables handheld close-up photography."
Price: 309.99

"Sigma AF 105mm f/2.8 DG OS Macro Lens For Canon Mount"
"The Sigma 105mm f/2.8 EX DG HSM Macro Lens for Canon EOS Cameras delivers superb, distortion-free images throughout its broad focus range, from infinity telephoto to life-size (1:1) macro, as close as 12.2"" (31 cm) without accessories. A Special Low Dispersion (SLD) lens and one high refractive index SLD lens provide excellent correction for all types of aberration and distortion. Its non-rotating front lens group makes it easier to work with polarizing filters. A focus limiter helps divide the broad focus range into more manageable chunks.The ""focus-free"" mechanical design allows the lens to autofocus without any interference from the manual focus ring, making it easy to hold the lens without affecting the speed or normal operation of the autofocus function. Rugged mechanical construction also makes it durable enough for even the heaviest use required by professional photographers. An ideal lens for a wide variety of applications from nature photography to portraiture.The improved DG lens design for this lens corrects for various aberrations. This macro lens is specially coated to get the best color balance while cutting down on ghosting caused by reflections from the digital image sensor. The lens provides the utmost correction against lateral chromatic aberration which is a serious problem for digital SLR cameras. Sigma's own proprietary OS (Optical Stabilizer) system enables handheld close-up photography."
Price: 338.99

"Sigma Art 35mm f/1.4 DG HSM Lens For Canon Mount"
"The 35mm f/1.4 DG HSM Lens for Canon DSLR Cameras from Sigma is the first entry into Sigma's Art series of professional lenses, with an emphasis on artistic expression and the creative potential of the lens. With a bright f/1.4 maximum aperture, floating inner focusing system, and Hyper Sonic Motor (HSM) you'll have quick and accurate control over the artistic effects achieved by the lens' high quality elements.For wide angle photography, this 35mm lens and its circular 9-bladed f/1.4 aperture ensure excellent brightness and blurred background (bokeh) effects. The Super Multi-Layer Coating reduces flare and ghosting and provides sharp and high contrast images even in backlit conditions.The lens' Hyper Sonic Motor (HSM) and floating inner focusing system ensure that you experience quick, quiet and precise autofocusing whenever you need it. Adjust focus using either autofocus (AF), or full-time manual focus, without having to switch camera modes or change settings - just flick the switch from AF to MF.For greater build quality and strength, all metallic parts and the new Thermally Stable Composite compound material (TSC), are housed internally. Its brass made bayonet mount has both high accuracy and durability, and a special treatment is applied to its surface giving it greater strength and making it highly resistant to long-term daily use."
Price: 516.99

"Sigma Contemporary 17-70mm f/2.8-4 DC Macro OS HSM C Lens For Canon Mount"
"The Sigma 17-70mm f/2.8-4 DC Macro OS HSM Lens for Canon is a standard zoom lens designed especially for DSLRs with APS-C-sized image sensors. This lens has a 35mm-equivalent focal length range of 27.2-112mm, providing wide-angle to portrait-length angles of view for use in everyday shooting situations.This lens features a fast f/2.8-4 maximum aperture to help better control your focus plane and to aid in low-light shooting. A built-in Optical Stabilizer also helps in low-light situations by providing a four-stop reduction in the appearance of camera shake, which is ideally suited for macro and telephoto shooting as well. The Hyper Sonic AF Motor delivers fast, smooth, and quiet auto focusing that greatly benefits video applications. The integration of two FLD, one SLD, and three aspherical lenses in the construction helps to reduce the effects of chromatic and chromatic axial aberrations, and Super Multi-Layer coated elements help to increase contrast for sharp, clear imagery.As part of Sigma's new Contemporary line of lenses, this lens is designed using Thermally Stable Composite (TSC) materials to help reduce the overall weight and size of the lens barrel by about 30% without compromising on optical integrity, rigidity, or overall durability.For updating lens firmware and fine-tuning its nuances to best-suit your personal shooting, this lens is compatible with the Sigma USB Dock. The dock allows you to specify certain parameters and other settings through the Sigma Optimization Pro software, such as AF speed and focusing limitations."
Price: 237.99

"Sigma Contemporary 17-70mm f/2.8-4 DC Macro OS HSM C Lens For Nikon Mount"
"The Sigma 17-70mm f/2.8-4 DC Macro OS HSM Lens for Nikon is a standard zoom lens designed especially for DSLRs with APS-C-sized image sensors. This lens has a 35mm-equivalent focal length range of 27.2-112mm, providing wide-angle to portrait-length angles of view for use in everyday shooting situations.This lens features a fast f/2.8-4 maximum aperture to help better control your focus plane and to aid in low-light shooting. A built-in Optical Stabilizer also helps in low-light situations by providing a four-stop reduction in the appearance of camera shake, which is ideally suited for macro and telephoto shooting as well. The Hyper Sonic AF Motor delivers fast, smooth, and quiet auto focusing that greatly benefits video applications. The integration of two FLD, one SLD, and three aspherical lenses in the construction helps to reduce the effects of chromatic and chromatic axial aberrations, and Super Multi-Layer coated elements help to increase contrast for sharp, clear imagery.As part of Sigma's new Contemporary line of lenses, this lens is designed using Thermally Stable Composite (TSC) materials to help reduce the overall weight and size of the lens barrel by about 30% without compromising on optical integrity, rigidity, or overall durability.For updating lens firmware and fine-tuning its nuances to best-suit your personal shooting, this lens is compatible with the Sigma USB Dock. The dock allows you to specify certain parameters and other settings through the Sigma Optimization Pro software, such as AF speed and focusing limitations."
Price: 231.99

"Sigma Art 60mm f/2.8 DN Lens For M4/3 Mount Black"
"At home under the Art category, this high-performance standard lens is designed exclusively for mirrorless interchangeable lens cameras and has the equivalent angle of view as 120mm on the Micro Four Thirds system and 90mm on the E-mount system (35mm equivalent focal length. This lens features SLD (Special Low Dispersion) glass, which helps minimize axial and transverse chromatic aberration. Glass mold aspherical lenses help minimize coma.  Optimized power distribution helps ensure exceptional image quality from the center to the edges of the images. In addition, the inner focusing system corrects the fluctuation of aberration to maintain image quality regardless of the focusing position. The superior telecentric optical design improves the image quality throughout the frame. The optical design also allows the lens to be compact and lightweight.This lens benefits from a newly developed linear AF motor, which moves the lens elements directly without the need for gears or the drive of other mechanical parts. This system ensures accurate and quiet autofocusing, making the lens suitable for video recording as well as still photos. The lens features a rounded 7-blade diaphragm creating an attractive blur to the out of focus areas of the image. This Sigma 60mm F2.8 DN has a minimum focusing distance of 50cm/19.7in and a maximum magnification ratio of 1:7.2, and comes in either a silver or black finish."
Price: 136.99

"Sigma Art 60mm f/2.8 DN Lens For M4/3 Mount Silver"
"At home under the Art category, this high-performance standard lens is designed exclusively for mirrorless interchangeable lens cameras and has the equivalent angle of view as 120mm on the Micro Four Thirds system and 90mm on the E-mount system (35mm equivalent focal length. This lens features SLD (Special Low Dispersion) glass, which helps minimize axial and transverse chromatic aberration. Glass mold aspherical lenses help minimize coma.  Optimized power distribution helps ensure exceptional image quality from the center to the edges of the images. In addition, the inner focusing system corrects the fluctuation of aberration to maintain image quality regardless of the focusing position. The superior telecentric optical design improves the image quality throughout the frame. The optical design also allows the lens to be compact and lightweight.This lens benefits from a newly developed linear AF motor, which moves the lens elements directly without the need for gears or the drive of other mechanical parts. This system ensures accurate and quiet autofocusing, making the lens suitable for video recording as well as still photos. The lens features a rounded 7-blade diaphragm creating an attractive blur to the out of focus areas of the image. This Sigma 60mm F2.8 DN has a minimum focusing distance of 50cm/19.7in and a maximum magnification ratio of 1:7.2, and comes in either a silver or black finish."
Price: 135.99

"Sigma Art 60mm f/2.8 DN Lens For Sony NEX E Mount Black"
"The black 60mm f/2.8 DN Lens for Sony E-mount Cameras from Sigma is a prime lens compatible with Sony E-mount cameras. With a 90mm focal length equivalent in the 35mm format, this is a mid-range telephoto length lens with numerous applications including portraiture. A maximum aperture of f/2.8 provides shallow depth of field and makes this lens effective in low light. The minimum focus distance on this lens is 19.7"" (50 cm) and its maximum magnification ratio is 1:7.2. A newly developed linear auto focus motor provides accurate and quiet focusing which is ideal when shooting video. With Special Low Dispersion (SLD) glass elements and glass molded aspherical elements, this lens minimizes chromatic aberrations for sharp, high resolution images. A seven-bladed diaphragm creates an attractive blur in the out of focus areas.Designed with a focus on sophisticated optical performance and tremendous expressive power, our new Art line of lenses delivers top-level image quality. With unsurpassed expressive performance, these lenses reach the high standards demanded by photographers with an artistic, creative inclination. Along with landscapes, portraits, still-life, close-up and casual snaps, they're perfect for the kind of photography that unleashes the inner artist. Ideal for studio photography, they offer just as much expressive scope when capturing architecture, starry skies, underwater shots and many other scenes."
Price: 136.99

"Sigma Art 60mm f/2.8 DN Lens For Sony NEX E Mount Silver"
"The silver 60mm f/2.8 DN Lens for Sony E-mount Cameras from Sigma is a prime lens compatible with Sony E-mount cameras. With a 90mm focal length equivalent in the 35mm format, this is a mid-range telephoto length lens with numerous applications including portraiture. A maximum aperture of f/2.8 provides shallow depth of field and makes this lens effective in low light. The minimum focus distance on this lens is 19.7"" (50 cm) and its maximum magnification ratio is 1:7.2. A newly developed linear auto focus motor provides accurate and quiet focusing which is ideal when shooting video. With Special Low Dispersion (SLD) glass elements and glass molded aspherical elements, this lens minimizes chromatic aberrations for sharp, high resolution images. A seven-bladed diaphragm creates an attractive blur in the out of focus areas.Designed with a focus on sophisticated optical performance and tremendous expressive power, our new Art line of lenses delivers top-level image quality. With unsurpassed expressive performance, these lenses reach the high standards demanded by photographers with an artistic, creative inclination. Along with landscapes, portraits, still-life, close-up and casual snaps, they're perfect for the kind of photography that unleashes the inner artist. Ideal for studio photography, they offer just as much expressive scope when capturing architecture, starry skies, underwater shots and many other scenes."
Price: 135.99

"Sigma USB Dock Lens For Canon Mount"
"The Sigma USB Dock for Canon Lenses allows you to connect your Sigma Global Vision lenses to your computer in order to update firmware and adjust focus setting parameters using the Sigma Optimization Pro software. This dock is only compatible with the Sigma Art, Contemporary, and Sports line lenses featuring a Canon EF lens mount.Once a Sigma Art, Contemporary, or Sports line lens is connected, you can use the Sigma Optimization Pro software to configure focus settings and update lens firmware. For all lines of lenses, there are four categories for prime lenses and 16 categories (four options for focal length, four options for shooting distance) for zoom lenses available. These categories allow you to set certain focusing settings to better suit your personal shooting style.If using a Sports line lens, additional lens configurations are available: three different AF speed modes to modify how quickly the lens changes focus; the ability to constrain focus distances within a specific range to suit your personal shooting habits; and three Optical Stabilizer modes to suit the manner in which you are shooting."
Price: 57.99