"Sony 11-18mm f/4.5-5.6 DT Price in Pakistan, Specifications, Features, Reviews"

Sony 11-18mm f/4.5-5.6 DT

by Sony

The 11-18mm f/4.5-5.6 DT Wide Angle Zoom Lens from Sony is a DT-series Alpha lens that has been optimized for cropped image sensors, and as a result it is not recommended for use with larger full-frame cameras. Its 11-18mm focal length is the 35mm equivalent of a 16.5-27mm lens.

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Features for Sony 11-18mm f/4.5-5.6 DT

Circular Aperture

 
 
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.

 

 

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.

 

 

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.

 

 

Internal focusing

 
 
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.

 

 

Distance encoder

 
 
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.

Specifications for Sony 11-18mm f/4.5-5.6 DT

General Specs
 Warranty  
 Price 88,999 Price in Pakistani Rupees

Images for Sony 11-18mm f/4.5-5.6 DT


Sony 11-18mm f/4.5-5.6 DT Price in Pakistan, Specifications, Features, ReviewsSony 11-18mm f/4.5-5.6 DT Price in Pakistan, Specifications, Features, ReviewsSony 11-18mm f/4.5-5.6 DT Price in Pakistan, Specifications, Features, Reviews
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Disclaimer : Sony 11-18mm f/4.5-5.6 DT price in Pakistan is updated on daily basis and rate/price for Sony 11-18mm f/4.5-5.6 DT is valid for all cities of Pakistan included Islamabad, Rawalpindi, Lahore, Karachi, Faisalabad, Peshawar, Sialkot, Quetta etc. Sony 11-18mm f/4.5-5.6 DT price depends on many factors thats include the price of dollors, manufacturar price and import cost and duties etc. Our team entered specs from diffrent resources and not responsible for any typo error in specs for Sony 11-18mm f/4.5-5.6 DT, please report any such error in bug report panel for Sony 11-18mm f/4.5-5.6 DT. Sony 11-18mm f/4.5-5.6 DT price in Pakistan.