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Sony SAL18250 Alpha DT 18-250mm f/3.5-6.3 High Magnification Zoom Lens
|Price:||$648.00 & FREE Shipping|
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- Excellent wide-angle to long telephoto shots
- Fast Internal Focusing -- lens length does not change
- 16 Lens Elements in 13 groups for wide-ranging accuracy
- ED Glass Elements for sharp, clear long shots
- Circular Aperture for pleasing defocused effects
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|Aperture Control Design||Aperture controlled by camera|
|Compatible Lens Hood Part Number||petal shaped hood|
|Compatible Mountings||Sony/Minolta Alpha|
|Focus Type||Screw drive from camera|
|Item Dimensions||2.95 x 2.95 x 3.39 inches|
|Item Display Weight||440 grams|
|Item Weight||0.97 pounds|
|Lens Type||Zoom lens|
|Macro Focus Range||0.45 m|
|Manufacturer Warranty Description||1 yr limited|
|Maximum Aperture Range||F3.5 - F6.3|
|Maximum Focal Length||250 mm|
|Maximum Format Size||APS-C / DX|
|Minimum Focal Length||18 mm|
|Number of Diaphragm Blades||7|
|Number of Elements||16|
|Number of Groups||13|
|Photo Filter Thread Size||62 mm|
|Real Angle Of View||76 Degrees|
|Shipping Weight||1.75 pounds|
Compare to Similar Items
This item: Sony SAL18250 Alpha DT 18-250mm f/3.5-6.3 High Magnification Zoom Lens
|Shipping||FREE Shipping||FREE Shipping||FREE Shipping||FREE Shipping|
|Sold By||Adorama Camera||Amazon.com||Amazon.com||Amazon.com|
|Compatible Mountings||Sony/Minolta Alpha||Sony/Minolta Alpha DT||Sony/Minolta Alpha DT||Sony/Minolta Alpha|
|Dimensions||2.95 inches x 3.39 inches x 2.95 inches||2.91 inches x 3.5 inches x 2.91 inches||2.91 inches x 3.46 inches x 2.91 inches||3.03 inches x 4.61 inches x 3.03 inches|
|Item Weight||0.97 pounds||1.04 pounds||0.99 pounds||1.01 pounds|
|Lens||Zoom lens||Zoom lens||Zoom lens||Zoom lens|
|Maximum Aperture||Information not provided||3.5||3.5||Information not provided|
|Max Focal Length||250 mm||250 mm||270 mm||300 mm|
|Min Focal Length||18 mm||18 mm||18 mm||55 mm|
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From the Manufacturer
DT 18-250mm F3.5-6.3 Zoom Lens
This lens is an excellent option when your need a bit more "reach" at the long end that can make a significant difference if you're shooting sports or wildlife. Obtain oustanding clarity and contrast from the wide 18mm end to full 250mm telephoto, making this lens one of the most useful and versatile for APS-C format cameras.
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.
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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.
Read about our customers' top-rated lenses and cameras on our review pages: Lenses, Digital SLR Cameras, Compact System Cameras
Top Customer Reviews
Long version: I got this lens as an upgrade from my original Sony 18-55 lens, since I wanted a lens with a little more zoom capability (and some close-up as well) without having to switch back and forth between the 18-55 for wide angle and a bulky telephoto for higher zoom.
I was worried a little bit by reviews of the similar Tamron 18-250 lens because some reviewers claimed it had slower focus times and zoom slip.
Well, with this lens, I've not noticed any difference in focusing speed or had any problem with the zoom slipping; the zoom itself is tight and the autofocus is spot-on (I have mediocre eyesight, so AF is pretty important for me). Colors are vibrant, the view is clear... everything is good with this lens so far. I'm very pleased and not at all remorseful about dropping the cash for it.
I must say I used this lens on my Minolta 7D. I got faster results with this camera but again the pictures were good, no more no less.
With the Sony 18-250 on my (new) Alfa 700, this is another story. This couple is damn fast; only in a few occasions did I have some difficulties to focus. I shot already 1000 pictures at the sea side, in mountain areas, in a desert; I am happy to report that I got accurate colors (those I actually saw) and distortion free pictures.
If you want to travel light, the couple Alfa 700/Sony 18-250 is a must. It is a kind of standard lens along with the Sony 11-18 that I rate 5 stars too.
1) 14 x range from moderate wide angle to moderate telephoto makes this a very convenient package
2) good but not great sharpness, esp. if stopped down a bit (f5.Read more ›
Most Recent Customer Reviews
I have 2 of this lens. When the other one broke, I replaced it with the same lens. Can't go anywhere with my Alpha 58 without this. Read morePublished 1 month ago by Jonabel O Perez
Loving the new range, and not having to switch lenses as often as before.Published 7 months ago by Alan S Harker
I chose this lens as my go=to when I purchased my A65. The lens has been fantastic on photos, but while videoing a symphonic performance the autofocus would start to make audible... Read morePublished 8 months ago by L. Koch
The lens is extremely noisy and has manual focusing. I used it on my A58 but it won't focus easily when fully zoomed. Read morePublished 9 months ago by JD
A good versatile lens but not as sharp as I hoped in the 150-250 mm range. Still a good travel lens.Published 12 months ago by Steven Hood
I bought this lens for my Sony Alpha 77 camera to replace an older 18-105 mm lens as my standard "shoot all travel lens" and I was not disappointed at all. Read morePublished 17 months ago by mark
Bought this lens second hand elsewhere as i really wanted a all-purpose lens - I don't like the idea of having to keep changing lenses in the open, as it means i could lose... Read morePublished 17 months ago by Aaron Yong
For me this was an excellent replacement for the original lens that came with my Sony A-350 DSLR
For me this is a great all-purpose lens.
Great lens I use it with my Sony A65 and Sony A77. The pictures are amazing.Published 19 months ago by MacArthur W. Joseph