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Sony DT 11-18mm f/4.5-5.6 Aspherical ED Super Wide Angle Zoom Lens for Sony Alpha Digital SLR Camera
|Sale:||$748.00 & FREE Shipping|
|You Save:||$51.99 (6%)|
- DT lens design for optimum performance
- Delivers excellent wide-angle and long telephoto shots
- Aspherical lens elements for wide-angle accuracy
- ED glass elements for sharp, accurate colors
- 35mm Equivalent: 16.5 to 27mm
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|Aperture Control Design||Aperture controlled by camera|
|Compatible Devices||Select Alpha & Minolta Digital SLR's|
|Compatible Lens Hood Part Number||petal hood|
|Compatible Mountings||Sony/Minolta Alpha|
|Focus Type||Screw drive from camera|
|Item Dimensions||3.17 x 3.27 x 3.17 inches|
|Item Display Weight||0 pounds|
|Item Weight||0.79 pounds|
|Lens Type||Zoom lens|
|Macro Focus Range||0.25 m|
|Maximum Aperture Range||F4.5 - F5.6|
|Maximum Focal Length||18 mm|
|Maximum Format Size||APS-C / DX|
|Minimum Focal Length||11 mm|
|Number of Diaphragm Blades||7|
|Number of Elements||15|
|Number of Groups||12|
|Photo Filter Thread Size||77 mm|
|Real Angle Of View||104 Degrees|
|Shipping Weight||1.55 pounds|
|Style Name||11-18mm Lens|
From the Manufacturer
DT 11-18mm F4.5-5.6 Wide Zoom Lens
This wide zoom lens offers a range of focal lengths that are indispensable for serious indoor and architectural photography as well as any other situation that demands wide-angle coverage. City scenes, crowded markets, historical ruins . . . all of these are subjects that can benefit from the wide perspectives this lens provides.
When changing your aperture to defocus the background, the light sources appear blurred. This ‘bokeh’ effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. α lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result.
ED (Extra-low Dispersion) glass
As focal lengths get longer, lenses built with conventional optical glass have difficulties with chromatic aberration, and as a result images suffer from lower contrast, lower color quality, and lower resolution. ED glass dramatically reduces chromatic aberration at telephoto ranges, and provides superior contrast across the entire image, even at large aperture settings. Super ED glass provides enhanced compensation for chromatic aberration.
Aspherical lens elements
Aspherical lens design dramatically reduces spherical aberration while also reducing lens size and weight. Spherical aberration is a slight misalignment of the light rays projected on the image plane. This is caused by differences in refraction at different points on conventional spherical lenses which degrade image quality in large-aperture lenses. Specially shaped “aspherical” elements near the diaphragm restore alignment of light rays at the image plane, maintaining high sharpness and contrast even at maximum aperture and can also be used at other points in the optical path to reduce distortion. Well-designed aspherical elements can reduce the total number of elements required in the lens, thus reducing overall size and weight. Advanced Aspherical (AA) elements are an evolved variant, featuring an extremely high thickness ratio between the center and periphery. AA elements are exceedingly difficult to produce, relying on the most advanced molding technology to consistently and precisely achieve the required shape and surface accuracy, resulting in significantly improved image accuracy and quality.
The distance encoder plays an integral part in ADI flash metering, which delivers high precision flash metering that is unaffected by the reflectance of subjects or backgrounds. The distance encoder is a lens component that directly detects the position of the focusing mechanism, and sends a signal to the CPU in order to measure distance to the subject. During flash photography, this data is very useful in calculating how much flash output is appropriate to the scene.
Only the middle groups of the optical system move to achieve focus, so the overall length of the lens does not change. Other important benefits include fast autofocusing and a short minimum focusing distance. Also, the filter thread at the front of the lens does not rotate, which is convenient if you’re using a polarizing filter.
2008 Sony Electronics, Inc.
All rights reserved. Sony, the Sony logo, Alpha, “α” and Super SteadyShot are trademarks of Sony. All other trademarks are trademarks of their respective owners.
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Top Customer Reviews
Best Buy had this on sale, free shipping, for $400 early Feb. 2008.
So look for that number or lower on this lens for best price.
However, when I saw the Sony 11mm/18mm wide angle zoom lens passing through Frankfurt airport, I thought it might be useful for the rare occasions when the 18mm is not quite wide enough. Fortunately I waited to buy until I returned to the US, where it cost 50% of the price in Euros. This is another exceptional lens, with quite astonishing performance. As with any super wide angle lens, there is a risk of distortion on straight vertical lines, but far less than I'd expected. The 11mm/18mm is now in my travel kit. It's great.
Then I decided to give a try to the ultra wide angle. Now, I have to admit I love it very much. The couple Alpha 700/Sony 11-18 is very fast. The pictures are sharp, the color are rather accurate (I get what I see) and there is no barrel distortion (depending how you compose the picture, of course).
My idea was to carry only one camera with a "standard" lens (18-250) and bring others lenses according to my needs. Well, I am afraid I got two "standard" lenses.
The lens itself takes wonderful pictures with my Sony A77.
My a65 is an APS-C but, even so, at 11mm I get a bit of a fisheye effect. Shooting columns straight on will capture them with significant curvature. This can enhance a photo or just make it look plain weird, depending on the context. In sunlight it's common to find your shadow creeping into frame. So I spend considerable time and experimentation sometimes getting the correct angle to shoot. It is not a lens for just 'getting it all in.' If you want to do that just step back a few steps (or do a panorama) with the fine and very affordable Sony 18-55mm lens. In fact, I find instead of stepping back it's far more interesting to get up close with the Sony 11-18mm. I can't emphasize enough if you just shoot memory sorts of photos of portraits and places this is not the lens for you.
Optically, I find no fault with the lens. For a zoom it produces sharp images, with good contrast, and the colors are fine. The results are clearly better than my budget Sony 75-300mm, for instance.Read more ›
Most Recent Customer Reviews
It's a Sony...what more needs to be said..GREAT GLASS..AAAAAAA+++++++++Published 4 months ago by J. Irish
Excellent product that works great, just as expected and it arrived on time.Published 8 months ago by tbee2003
Excellent product as described; not as sharp as I'd like the images to be, but great scale and solid lens.Published 22 months ago by Jonnie
I brought an A100 Kit with the two 18-75, 75-300mm lenses this completes the entire range from ultra wide to super telephoto. Used it for some great sunset photos. Read morePublished 24 months ago by M Blair
This is a great lens for sharp low distortion wide angle shots for the Sony A-mount system. I bought it for an architecture shoot but kept it for nature photography.Published on December 12, 2013 by sterling wong
...there is a horrible grinding sound when you adjust the focus ring. I think mine is a bad copy. The image quality is very nice for the price.Published on August 19, 2013 by eastbayrae
I recently purchased this lens for attachment to Sony Alpha 55. I have only used the lens a few times, but my expectations for its physical quality and lens performance as... Read morePublished on January 29, 2013 by Hawkeye50
Im using a cropped body sony SLR that came with an 18-70 and 55-200 lens kit. I love shooting landscapes and the 18-70 simply wasnt wide enough for me. Read morePublished on August 10, 2012 by Amazon Customer
On the whole, I am pleased with this lens. It is far from perfect -- the build quality is just OK, f/4.5-5.6 is pretty slow, etc., etc. Read morePublished on November 17, 2011 by Ralph Stout