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      Sony SEL55F18Z - lens - 55 mm

      CAD $1,249.99
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      Manufacturer part SEL55F18Z | Dell part A9022183 | Order Code a9022183 | Sony
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      E Mount : Sonnar T* FE 55mm F1.8 ZA

      Renowned Carl Zeiss contrast and resolution brings out the best in α7 series full frame E-mount bodies. The T* coating works with an innovative optical design to suppress internal reflections, for sublime contrast from highlights to deep blacks. In keeping with the Sonnar concept, a large F1.8 maximum aperture can produce beautiful full-frame background bokeh, but you also have the option of stopping down for extended depth-of-field. A bright lens like this is also an advantage when shooting indoors or outdoors in low light. Linear motor driven internal focusing is smooth and quiet, and a dust and moisture resistant design ensures consistently reliable performance.
      E Mount : Sonnar T* FE 55mm F1.8 ZA

      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.

      Carl Zeiss T* (T-star) coating

      Coated optics were pioneered by Carl Zeiss® - and this superb lens features the Carl Zeiss T* (T-Star) coating that virtually eliminates lens flare, internal reflection and light scattering that can otherwise occur at glass-to-air surfaces. The T* coating contributes to outstanding image quality, with high contrast and uniformly excellent resolution right out to the image edges. Not simply applied to any lens - the T* symbol only appears on multi-element lenses in which the required performance has been achieved throughout the entire optical path, therefore guaranteeing the highest quality.

      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.

      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.

      Sony customer reviews

      Overall:

      (900 reviews)

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      Optics/Lens
      Lens TypeSony E-mount (Full Frame)
      Lens Mount TypeSony E-mount (Full Frame)
      ApertureCircular
      Aperture (Max.)f/1.8 (constant)
      Aperture (Min.)f.22
      Focal Length (35mm equivalent)55mm (35mm)
      82.5mm (APS-C)
      Filter Diameter49 mm
      Lens Groups-Elements5 groups, 7 elements
      Minimum Focus Distance19.7"
      0.5m
      Angle of View43° (35mm)
      29° (APS-C)
      Aperture Blade9 blades (Circular aperture)
      Aspheric Elements3 aspheric
      Lens Weight10 oz. (281 g)
      Maximum Magnification0.14x
      Weights and Measurements
      Dimensions (Approx.)2-5/8" x 2-7/8"
      (64.4 x 70.5 mm)
      Weight (Approx.)10 oz. (281g)

      • Front and rear lens cap
      • ALC-SH131 bayonet type lens hood (petal)
      • Lens Case

      Renowned Carl Zeiss contrast and resolution brings out the best in α7 series full frame E-mount bodies. The T* coating works with an innovative optical design to suppress internal reflections, for sublime contrast from highlights to deep blacks. In keeping with the Sonnar concept, a large F1.8 maximum aperture can produce beautiful full-frame background bokeh, but you also have the option of stopping down for extended depth-of-field. A bright lens like this is also an advantage when shooting indoors or outdoors in low light. Linear motor driven internal focusing is smooth and quiet, and a dust and moisture resistant design ensures consistently reliable performance.

      Tech Specs


      General
      Length
      7.05 cm
      Diameter
      6.44 cm
      Weight
      281 g
      Colour
      Black

      Lens System
      Type
      Lens
      Intended For
      Mirrorless system
      Focal Length
      55 mm
      Lens Aperture
      F/1.8
      Minimum Aperture
      F/22
      Magnification
      0.14
      Min Focus Distance
      50 cm
      Focus Adjustment
      Automatic, manual
      Max View Angle
      43 degree(s)
      Lens Construction
      5 groups / 7 elements
      Filter Size
      49 mm
      Diaphragm Blades
      9
      Lens Coating
      T* coating
      Mounting Type
      Sony E-mount
      Lens Brand
      Carl Zeiss
      Features
      Aspherical lens, dustproof, moisture-resistant

      Miscellaneous
      Included Accessories
      Lens hood, dust cap, lens cap, lens case

      Compatibility Information
      Designed For
      • Sony NXCAM NEX-EA50JH, NEXEA50M, NEX-FS100J, NEX-FS700R, NEX-FS700RH, NEX-FS700U, NEX-FS700UK
      • Sony XDCAM PXW-FS5, PXW-FS5K, PXW-FS7, PXW-FS7K
      • Sony α7 ILCE-7, ILCE-7K
      • Sony α7R ILCE-7R


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