Tamron Tamron 17-50mm f/2.8 XR DI-II VC LD SP AF Lens (72mm)--Canon AFB005C700

Tamron 17-50mm f/2.8 XR DI-II VC LD SP AF Lens (72mm)--Canon AFB005C700

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Tamron
$599.99 $419.00 at 42nd Street Photo

Tamron's SP AF17-50mm F/2.8 XR Di II VC LD Aspherical (IF) is a high-speed, wide-to-moderate-telephoto zoom lens designed for Cano...n digital SLR cameras with smaller sensors. It covers the very popular 17-50mm focal length range (equivalent to 26-78mm in the full-frame 35mm format) making it extremely versatile. Tamron's Vibration Compensation (VC) mechanism minimizes the effects of handheld camera shake (up to 4-stops), providing a means to great low-light shooting. The lens delivers impressive sharpness and striking contrast over its entire focal length and aperture range. A maximum aperture of f/2.8 delivers images enhanced by shallow depth-of-field, and smooth, natural transitions in out-of-focus areas of the image. Additionally, this lens carries a 6-Year Tamron Limited Warranty (U.S.A. only) Di II Lenses are designed for exclusive use on digital cameras with smaller-size imagers. These lenses are not designed for conventional cameras or digital cameras with image sensors larger than APS-C size (24mm x 16mm). Read More

Tamron
$649.95 $449.00 at 42nd Street Photo

Tamron's SP AF17-50mm F/2.8 XR Di II VC LD Aspherical (IF) is a high-speed, wide-to-moderate-telephoto zoom lens designed for Niko...n digital SLR cameras with smaller sensors. It covers the very popular 17-50mm focal length range (equivalent to 26-78mm in the full-frame 35mm format) making it extremely versatile. Tamron's Vibration Compensation (VC) mechanism minimizes the effects of handheld camera shake (up to 4-stops), providing a means to great low-light shooting. The lens delivers impressive sharpness and striking contrast over its entire focal length and aperture range. A maximum aperture of f/2.8 delivers images enhanced by shallow depth-of-field, and smooth, natural transitions in out-of-focus areas of the image. Di II Lenses are designed for exclusive use on digital cameras with smaller-size imagers. These lenses are not designed for conventional cameras or digital cameras with image sensors larger than 24mm x 16mm. Read More

Tamron
$499.00 at Buydig

The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expanding ...the product concept of the popular SP AF28-75mm F/2.8 zoom lens. In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. The lens boasts one of the best close-up shooting performances in the class of fast standard zoom lenses designed exclusively for digital cameras and featuring an F/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances Di II: Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di products. These lenses are not designed for 35mm film cameras and digital cameras with image sensors larger than 24mm x 16mm. Key Features: Lightweight, Compact Fast Standard Zoom Lens is Designed Exclusively for Digital SLR Cameras, with 17mm Wide Angle Coverage Exclusive design for digital SLR cameras achieves a fast standard zoom lens that covers virtually the same angles as focal lengths of 26-78mm when converted to a 35mm format. The wide-angle focal length is established at 17mm (26mm equivalent) to obtain a wider angle of view than ordinary standard zoom lenses, while maintaining the remarkably lightweight and compact size of the earlier full frame zoom lens model. Since the lens is designed exclusively for APS-C sized digital cameras, the image circle diameter has been reduced. Moreover, careful adjustments to the design have achieved a lightweight, compact body with a filter diameter of 67mm, overall length of 81.7mm (3.2")*, and weight of 434g (15.3oz.)*. * Values given are for Nikon AF cameras. Optical System Uses Special Glass, and Is Optimized for Digital SLR Characteristics to Enhance Optical Quality in a Compact Design The use of XR (Extra Refractive Index) glass in an innovative way optimizes the overall distribution of optical power, and also reduces various aberrations to the absolute minimum while achieving remarkable compactness. In addition, suitable positioning of two hybrid aspherical elements serves to maintain imaging performance and to shorten and compress the entire optical system. Furthermore, an LD (Low Dispersion) glass element is used to accomplish effective compensation of on-axis and lateral chromatic aberrations, a critical factor for enhancing optical quality in digital photography, in order to achieve outstanding optical performance over the entire zoom range. Minimum Focus Distance of 27cm (10.6") over the Entire Zoom Range Affords a 1:4.5 Macro Capability The new lens achieves a minimum focus distance of 27cm (10.6") over the entire zoom range, one of the best in its class among fast standard zoom lenses with an F/2.8 maximum aperture throughout the entire zoom range used exclusively for digital SLR cameras with APS-C sized image sensors. The maximum magnification ratio of 1:4.5* at the 50mm setting is the top level in its class. * Since APS-C sized image sensors are smaller than 35mm film, the 1 Read More

Tamron
$499.00 at Buydig.com

The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expanding ...the product concept of the popular SP AF28-75mm F/2.8 zoom lens. In addition, portrait shots are made beautiful with the... Read More

Tamron
$499.00 at Buydig.com

NOTE: This new lens has a buit-in motor and as such is perfectly compatible with the D40, D40X and D60 bodies. The SP AF17-50mm F/...2.8 II (AF016NII)-is a lightweight, compact, fast standard zoom lens designed exclusively for Nikon digital SLR cameras.... Read More

Tamron
$499.00 at Buydig

NOTE: This new lens has a buit-in motor and as such is perfectly compatible with the D40, D40X and D60 bodies. The SP AF17-50m...m F/2.8 II (AF016NII)-is a lightweight, compact, fast standard zoom lens designed exclusively for Nikon digital SLR cameras. It will , expanding the product concept of the popular SP AF28-75mm F/2.8 zoom lens. In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. The lens boasts one of the best close-up shooting performances in the class of fast standard zoom lenses designed exclusively for digital cameras and featuring an F/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances Di II: Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di products. These lenses are not designed for 35mm film cameras and digital cameras with image sensors larger than 24mm x 16mm. Key Features: Lightweight, Compact Fast Standard Zoom Lens is Designed Exclusively for Digital SLR Cameras, with 17mm Wide Angle Coverage Exclusive design for digital SLR cameras achieves a fast standard zoom lens that covers virtually the same angles as focal lengths of 26-78mm when converted to a 35mm format. The wide-angle focal length is established at 17mm (26mm equivalent) to obtain a wider angle of view than ordinary standard zoom lenses, while maintaining the remarkably lightweight and compact size of the earlier full frame zoom lens model. Since the lens is designed exclusively for APS-C sized digital cameras, the image circle diameter has been reduced. Moreover, careful adjustments to the design have achieved a lightweight, compact body with a filter diameter of 67mm, overall length of 81.7mm (3.2")*, and weight of 434g (15.3oz.)*. * Values given are for Nikon AF cameras. Optical System Uses Special Glass, and Is Optimized for Digital SLR Characteristics to Enhance Optical Quality in a Compact Design The use of XR (Extra Refractive Index) glass in an innovative way optimizes the overall distribution of optical power, and also reduces various aberrations to the absolute minimum while achieving remarkable compactness. In addition, suitable positioning of two hybrid aspherical elements serves to maintain imaging performance and to shorten and compress the entire optical system. Furthermore, an LD (Low Dispersion) glass element is used to accomplish effective compensation of on-axis and lateral chromatic aberrations, a critical factor for enhancing optical quality in digital photography, in order to achieve outstanding optical performance over the entire zoom range. Minimum Focus Distance of 27cm (10.6") over the Entire Zoom Range Affords a 1:4.5 Macro Capability The new lens achieves a minimum focus distance of 27cm (10.6") over the entire zoom range, one of the best in its class among fast standard zoom lenses with an F/2 Read More

Tamron
$649.00 at Buydig

The SP AF17-50mm F/2.8 XR Di II VC covers the heavily-used 17-50mm focal distance range (angle of view equivalent to 26-78mm when ...converted to the full frame format) making it an extremely versatile, high-performance zoom lens. Achieving sharpness and striking contrast, the lens produces beautiful images that are enhanced by the shallow depth-of-field afforded by the maximum aperture of F/2.8 and enriches the user's range of photographic expression. The new lens is equipped with Tamron's proprietary Vibration Compensation (VC) image stabilization mechanism, which provides more opportunities for hand-held photography, such as low-lit conditions like evening, night scenes and indoors, leading to a dramatically enhanced level of photographic freedom. Features Compact Fast Zoom with VC Fast Constant F/2.8 Aperture 26-78mm equivalent* on APS-C DSLRs *Tamron uses 1.55X as an average conversion to full frame For use on APS-C size DSLR cameras 11.4" MFD / 1:4.8 Max. Mag. Ratio Internal Focusing Specifications Model Name B005 Focal Length 17 - 50mm Format size APS-C Maximum Aperture F/2.8 Minimum Aperture F/32 Diagonal Angle of View 78 degres 45'- 31 degrees 11' Lens Construction 19 elements, 14 groups Minimum Focus Distance 11.4" (0.29m) Maximum Mag. Ratio 1:4.8 Filter Diameter 72mm Overall Length 3.7" (94.5mm)** Maximum Diameter 3.13" (79.6mm) Weight 20.15 oz. (570g)** Diaphragm Blades 7 Standard Accessory Flower-shaped lens hood Compatible Mount Canon and Nikon (Built-In-Motor for use on all Nikon DSLR cameras) * Values given are for Canon AF mount Read More

Tamron
$1,065.55 at Buydig

The SP AF17-50mm F/2.8 XR Di II VC covers the heavily-used 17-50mm focal distance range (angle of view equivalent to 26-78mm when ...converted to the full frame format) making it an extremely versatile, high-performance zoom lens. Achieving sharpness and striking contrast, the lens produces beautiful images that are enhanced by the shallow depth-of-field afforded by the maximum aperture of F/2.8 and enriches the user's range of photographic expression. The new lens is equipped with Tamron's proprietary Vibration Compensation (VC) image stabilization mechanism, which provides more opportunities for hand-held photography, such as low-lit conditions like evening, night scenes and indoors, leading to a dramatically enhanced level of photographic freedom. Features Compact Fast Zoom with VC Fast Constant F/2.8 Aperture 26-78mm equivalent* on APS-C DSLRs *Tamron uses 1.55X as an average conversion to full frame For use on APS-C size DSLR cameras 11.4" MFD / 1:4.8 Max. Mag. Ratio Internal Focusing Specifications Model Name B005 Focal Length 17 - 50mm Format size APS-C Maximum Aperture F/2.8 Minimum Aperture F/32 Diagonal Angle of View 78 degres 45'- 31 degrees 11' Lens Construction 19 elements, 14 groups Minimum Focus Distance 11.4" (0.29m) Maximum Mag. Ratio 1:4.8 Filter Diameter 72mm Overall Length 3.7" (94.5mm)** Maximum Diameter 3.13" (79.6mm) Weight 20.15 oz. (570g)** Diaphragm Blades 7 Standard Accessory Flower-shaped lens hood Compatible Mount Canon and Nikon (Built-In-Motor for use on all Nikon DSLR cameras) * Values given are for Canon AF mount Read More

Tamron
$599.99 $369.00 at 42nd Street Photo

The Tamron SP AF17-50mm f/2.8 XR Di II LD Aspherical [IF] is a lightweight, compact, fast standard zoom lens designed exclusively ...for digital SLR cameras. The focal length of this lens is equivalent to approx. 26-78mm in 35mm format. This lens offers an f/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. Note! Di-II lenses cannot be used with digital SLR cameras using image sensors that are larger than that of an APS-C size imager (e.g. 1D series), or with 35mm film SLR cameras. Optimized for Digital SLR The use of XR (Extra Refractive Index) glass optimizes the overall distribution of optical power, and also reduces various aberrations to the absolute minimum while achieving remarkable compactness. In addition, suitable positioning of two hybrid aspherical elements serves to maintain imaging performance and to shorten and compress the entire optical system. LD Glass An LD (Low Dispersion) glass element is used to accomplish effective compensation of on-axis and lateral chromatic aberrations, a critical factor for enhancing optical quality in digital photography, in order to achieve outstanding optical performance over the entire zoom range. Enhanced Peripheral Illumination Peripheral light fall-off is minimized when compared with that of conventional lenses for film cameras, so images are uniformly bright from the center to the periphery. Internal Surface Coating to Reduce Ghosting and Flare By employing inchInternal Surface Coatingsinch (i.e., multiple-layer coatings on cemented surfaces of plural elements) and multiple-layer coating technology on ordinary elements, ghosting and flare due to the reflections that occur when light enters through the front element and reflections caused by the imagers themselves are reduced to the absolute minimum. Zoom Lock Mechanism The Zoom Lock prevents unwanted barrel extension when carrying the lens/camera combination. Read More

Tamron
$649.00 at Buydig.com

The SP AF17-50mm F/2.8 XR Di II VC covers the heavily-used 17-50mm focal distance range (angle of view equivalent to 26-78mm when ...converted to the full frame format) making it an extremely versatile, high-performance zoom lens. Achieving sharpness and... Read More

Tamron
$1,065.55 at Buydig.com

The SP AF17-50mm F/2.8 XR Di II VC covers the heavily-used 17-50mm focal distance range (angle of view equivalent to 26-78mm when ...converted to the full frame format) making it an extremely versatile, high-performance zoom lens. Achieving sharpness and... Read More

Tamron Co., Ltd
$419.00 at 42nd Street Photo

High Speed Plus VC Anti-Shake for Ultimate Image Control A masterpiece of innovative optical design, this compact, lightweight, hi...gh performance standard zoom (26-78mm equivalent) delivers a fast F/2.8 aperture over its entire focal-length range for maximum creative flexibility. To maintain critical sharpness when shooting handheld it includes VC (Vibration Compensation), Tamron's state-of-the-art, tri-axial image stabilization system. Three compound aspheric elements, special LD glass, and BBAR coatings ensure superb correction, color fidelity, and freedom from flare. A minimum focus distance of 0.29m (11.4 inches) offers exciting close-up opportunities. Read More

Tamron Co., Ltd
$449.00 at 42nd Street Photo

A masterpiece of innovative optical design, this compact, lightweight, high performance standard zoom (26-78mm equivalent) deliver...s a fast F/2.8 aperture over its entire focal-length range for maximum creative flexibility. To maintain critical sharpness when shooting handheld it includes VC (Vibration Compensation), Tamron's state-of-the-art, tri-axial image stabilization system. Three compound aspheric elements, special LD glass, and BBAR coatings ensure superb correction, color fidelity, and freedom from flare. A minimum focus distance of 0.29m (11.4 inches) offers exciting close-up opportunities. Read More

Tamron
$499.00 at Buydig

Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di produ...cts. These lenses are not designed for conventional cameras and digital cameras with image sensors larger than 24mm x 16mm. The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expanding the product concept of the popular SP AF28-75mm F/2.8 zoom lens. In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. The lens boasts one of the best close-up shooting performances in the class of fast standard zoom lenses designed exclusively for digital cameras and featuring an F/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances Specifications: Model A16 Lens Construction (Groups/Elements) 13/16 Angle of View 78????45'-3111' (APS-C size equivalent) Type of Zooming Rotation Diaphragm Blade Number 7 (Circular apertures) Minimum Aperture F/32 Minimum Focus Distance 10.6in.(0.27m) Macro Magnification Ratio 1:4.5 (at f=50mm MFD 0.27m) Filter Diameter 67 Weight 430g (15.2oz) Diameter x Length 2.9 x 3.2in. (74.0 x 81.7mm) Accessory Flower-shaped Lens hood Mount Canon - Available BIM Nikon with Built-In Motor - Available Sony - Available Pentax - Available Read More

Tamron
$499.00 at Buydig.com

Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di produ...cts. These lenses are not designed for conventional cameras and digital cameras with image sensors larger than 24mm x... Read More

Tamron Co., Ltd
$499.00 at Buydig.com

Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di produ...cts. These lenses are not designed for conventional cameras and digital cameras with image sensors larger than 24mm x 16mm. The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expanding the product concept of the popular SP AF28-75mm F/2.8 zoom lens. In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. The lens boasts one of the best close-up shooting performances in the class of fast standard zoom lenses designed exclusively for digital cameras and featuring an F/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances Specifications: Model A16 Lens Construction (Groups/Elements) 13/16 Angle of View 78°45'-3111' (APS-C size equivalent) Type of Zooming Rotation Diaphragm Blade Number 7 (Circular apertures) Minimum Aperture F/32 Minimum Focus Distance 10.6in.(0.27m) Macro Magnification Ratio 1:4.5 (at f=50mm MFD 0.27m) Filter Diameter 67 Weight 430g (15.2oz) Diameter x Length 2.9 x 3.2in.(74.0 x 81.7mm) Accessory Flower-shaped Lens hood Mount Canon - Available BIM Nikon with Built-In Motor - AvailableSony - AvailablePentax - Available     Read More

Tamron Co., Ltd
$369.00 at 42nd Street Photo

The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expanding ...the product concept of the popular SP AF28-75mm F/2.8 zoom lens. In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. The lens boasts one of the best close-up shooting performances in the class of fast standard zoom lenses designed exclusively for digital cameras and featuring an F/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances. Read More

Tamron
$499.00 at Amazon

<p>The SP AF17-50mm F/2.8 is a lightweight, compact, fast standard zoom lens designed exclusively for digital SLR cameras, expandi...ng the product concept of the popular SP AF28-75mm F/2.8 zoom lens. In addition, portrait shots are made beautiful with the natural out-of-focus effect characteristic provided by the fast F/2.8 aperture. Additionally, a broader photographic expression through the use of faster shutter speeds as a result of the maximum aperture offers enhanced photographic pleasure. The lens boasts one of the best close-up shooting performances in the class of fast standard zoom lenses designed exclusively for digital cameras and featuring an F/2.8 maximum aperture throughout the entire zoom range, to ensure stress-free photographic shots at all focal lengths and distances. <br /> <br /> <table align="center" cellpadding="3" width="200"> <tbody> <tr> <td><img alt="AF18-200mm F/3.5-6.3 XR Di II" border="0" src="http://g-ecx.images-amazon.com/images/G/01/ce/844/AF17_50mm/SP-AF-17-50mm-F-2.8-XR-Di-II.jpg" /></td> </tr> <tr> <td><center><strong><em><small>Extraordinary detail at the macro level</small></em></strong></center></td> </tr> </tbody> </table> <strong>AF17-50mm F/3.5-6.3 XR Di II Highlights</strong> <br /> <br /> <strong>Di II</strong><br /> Lenses are designed for exclusive use on digital cameras with smaller-size imagers and inherit all of the benefits of our Di products. These lenses are not designed for conventional cameras and digital cameras with image sensors larger than 24mm x 16mm.<br /> <br /> <strong>Extra Refractive Index Glass (XR)</strong> <br /> Extra Refractive Index (XR) glass can bend light rays at steeper angles, thereby decreasing the physical length of the lens while enhancing imaging performance by minimizing optical aberrations. This has allowed Tamron to develop a line of shorter, smaller-diameter, lighter lenses without sacrificing lens speed, and actually upgrading image quality compared to older designs. XR glass is costlier than conventional glass but it yields enhanced optical power distribution, making possible many of the outstanding and innovative lens designs that bear the XR designation. XR glass, with its superior light-bending power, makes it possible to design a short-barrel lens with the same light-gathering ability (aperture value) as a long-barrel lens?even with a smaller lens diameter. By using this principle Tamron has been able to shorten the length of the entire optical system and produce lighter, more compact lenses of the same speed, and also to provide greater zoom ranges in lenses that are much more convenient to carry by hand. <br /> <br /> <table align="center" cellpadding="3" width="300"> <tbody> <tr> <td><img alt="Tamron AF18-200mm F/3.5-6.3 XR Di II at Amazon.com" border="0" src="http://g-ecx.images-amazon.com/images/G/01/ce/844/AF18_200/xr_tube.jpg" /></td> </tr> <tr> <td><center><strong><em><small>Special glass for better performance and more compact lens designs</small></em></strong></center></td> </tr> </tbody> </table> <strong>Low Dispersion (LD)</strong><br /> Low dispersion (LD) glass elements in a lens help reduce chromatic aberration; the tendency of light of different colors to come to different points of focus at the image plane. Chromatic aberration reduces the sharpness of an image, but glass with an extremely lowdispersion index, has less of a tendency to separate (defract) a ray of light into a rainbow of colors. This characteristic allows the lens designer to effectively compensate for chromatic aberration at the center of the field (on axis), a particular problem at long focal lengths (the telephoto end of the zoom range), and for lateral chromatic aberration (towards the edges of the field) that often occurs at short focal lengths (the wide-angle end of the zoom range.) <br /> <br /> <table align="center" cellpadding="3" width="300"> <tbody> <tr> <td><img alt="Tamron AF18-200mm F/3.5-6.3 XR Di II Low Disperson example at Amazon.com" border="0" height="218" src="http://g-ecx.images-amazon.com/images/G/01/ce/866/AF18-270/ld_glass.jpg" width="300" /></td> </tr> <tr> <td><center><strong><em><small>Low Dispersion (LD) Glass for Greater Lens Sharpness</small></em></strong></center></td> </tr> </tbody> </table> <br /> <strong>Super Performance (SP) for Discriminating Shooters</strong><br /> Tamron SP (Super Performance) series is a line of ultra-high-performance lenses designed and manufactured to the exacting specifications demanded by professionals and others who require the highest possible image quality. In creating SP lenses Tamron?s optical designers put their foremost priority on achieving superior performance parameters?they are all designed to a higher standard with little regard for cost constraints. As a result, Tamron lenses bearing the SP designation feature impressive and innovative designs that have established an enviable reputation for excellence among those knowledgeable photographers that demand the very best. <br /> <br /> <strong>Zoom Lock (ZL)</strong><br /> Another original Tamron mechanical engineering concept is the Zoom Lock (ZL), a simple convenience feature that prevents undesired extension of the lens barrel when carrying the camera/lens unit on a neck strap. <br /></p> Read More

Tamron
$1,065.55 at Buydig.com

The SP AF17-50mm F/2.8 XR Di II VC covers the heavily-used 17-50mm focal distance range (angle of view equivalent to 26-78mm when ...converted to the full frame format) making it an extremely versatile, high-performance zoom lens. Achieving sharpness and striking contrast, the lens produces beautiful images that are enhanced by the shallow depth-of-field afforded by the maximum aperture of F/2.8 and enriches the user's range of photographic expression. The new lens is equipped with Tamron's proprietary Vibration Compensation (VC) image stabilization mechanism, which provides more opportunities for hand-held photography, such as low-lit conditions like evening, night scenes and indoors, leading to a dramatically enhanced level of photographic freedom. Features Compact Fast Zoom with VC Fast Constant F/2.8 Aperture 26-78mm equivalent* on APS-C DSLRs *Tamron uses 1.55X as an average conversion to full frame For use on APS-C size DSLR cameras 11.4 MFD / 1:4.8 Max. Mag. Ratio Internal Focusing Specifications Model Name B005 Focal Length 17 - 50mm Format size APS-C Maximum Aperture F/2.8 Minimum Aperture F/32 Diagonal Angle of View 78 degres 45'- 31 degrees 11' Lens Construction 19 elements, 14 groups Minimum Focus Distance 11.4 (0.29m) Maximum Mag. Ratio 1:4.8 Filter Diameter 72mm Overall Length 3.7 (94.5mm)** Maximum Diameter 3.13 (79.6mm) Weight 20.15 oz. (570g)** Diaphragm Blades 7 Standard Accessory Flower-shaped lens hood Compatible Mount Canon and Ni Read More

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