Tamron AF017S-700 Autofocus 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Konica Minolta and Sony Digital SLR Cameras
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| Brand | Tamron |
| Lens Type | Telephoto |
| Compatible Mountings | Sony Alpha |
| Camera Lens Description | 300 millimetres |
| Maximum Focal Length | 300 Millimeters |
- 70-300mm macro lens with f/4-5.6 maximum aperture for digital or 35mm cameras
- Easy-to-use macro switch lets you alternate between 180mm and 300mm focal lengths
- Minimum focus distance of 59 inches from subject (normal) or 37.4 inches (macro)
- 9-blade circular diaphragm provides beautiful soft-focus imagery; 62mm filter diameter
- Measures 3 inches in diameter and 4.6 inches long; weighs 15.3 ounces
From the manufacturer
Setting the Standard for Lightweight Long-Range Zooms
AF70-300mm F/4-5.6 Di LD Macro 1:2
Compact top tele-zoom lens with macro 1:2 function. A high mechanical quality combined with excellent optical qualities are the characteristic features of this telephoto lens. This Di lens can be used on a digital APS-C sized or full frame camera. This lens ideally complements standard kit lenses.
A 'Macro Switchover' mechanism allows a minimum focus distance of 0.95m within the focal length range of 180-300mm. You can fill the entire frame with subjects of apx. 5 x 7cm size, at a maximum magnification ratio of 1:2, ideal for capturing images of flowers, insects and objects of similar size.
The designation 'Di' (Digitally Integrated Design) marks a generation of lenses, which have been specially adapted to the higher requirements of digital SLR cameras (APS-C and full frame).
Specifications
- Model No: A17
- Focal Length: 70-300mm
- Maximum Aperture: F/4-5.6
- Minimum Aperture: F/32
- Minimum Object Distance: 0.95m
- Maximum Magnification Ratio: 1:2
- Groups/Elements: 9/13
- Angle of View: 34-8
Low Dispersion (LD) Glass for Greater Lens Sharpness
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).
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Product Description
From the Manufacturer
Designed for optimum handling ease and portability (it weighs only 458g <16.2oz.> ), it’s ideal for handheld shooting with full-frame and APS-C format SLRs. Its unsurpassed close-focusing ability (down to 0.95m (3.1 feet ) or 1:2 in macro mode) makes it perfect for nature and portrait photography.
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AF 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens Features
Low Dispersion (LD) Glass for Greater Lens Sharpness
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 low dispersion 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.)"
Chесk Hеrе : ➲➲
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