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Tokina AT-X SD 11-16 mm f/ 2.8 PRO DX II Lens

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Tokina AT-X SD 11-16 mm f/ 2.8 PRO DX II lens

MTF-charts

Tokina AT-X SD 11-16 mm f/ 2.8 PRO DX II MTF Chart

Tokina AT-X SD 11-16 mm f/ 2.8 PRO DX II MTF Chart

Optical design

Tokina AT-X SD 11-16 mm f/ 2.8 PRO DX II optical design

Format: APS-C (crop)

Type: Zoom lens

Focusing: Auto Focus (AF)

Lens mounts: Canon EF, EF-S, Canon EF, EF-S, Canon EF, EF-S, Canon EF, EF-S, Nikon F (FX, DX), Nikon F (FX, DX), Nikon F (FX, DX), Nikon F (FX, DX)

First year of production: 2012

Optical design: 13 elements in 11 groups (As+SD)

Features: Ultra-Sonic Motor
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Average price: $450

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
11mm - 16mmf/2.8f/2290.377550/19,489/3,5

Additional information:

The Tokina AT-X SD 11-16 mm f/ 2.8 PRO DX II

  • Angle of view:  104° - 82° (1.5х)
  • Diameter 84 mm
  • Internal focusing
  • Petal hood BH-77A
  • The variant for Canon was announced for 3August 2012

The Tokina AT-X SD 11-16mm f/2.8 PRO DX II(model 116) is a fast  superwide-angle zoom lens with a constant maximum aperture for  DSRL  APS-C cameras with Canon EF-S or Nikon DХ bayonet mounts only.  It cannot be used on full-frame  cameras.

The second variant of the lens differs by a new coating and new SD-M ultra-sonic motor AF drive, which makes it possible to use the lens autofocus on Nikon low-end models.

The lens is equipped with the so called One-touch Focus Clutch Mechanism, i. e. the choice between manual focusing and auto-focusing modes with one touch.  In order to switch to autofocus mode you should slightly shift the focus ring  forward.  To engage manual focusing the focus ring should be shifted back to the camera.  The switch requires some effort and is followed with a click sound.  While switching, it is possible to defocus.  

Evaluation of Tokina designations:

  • AT-X (advanced technology extra) - the lens is designed by means of  advanced and new technologies and high-quality materials.
  • PRO - models with this designation have an aluminum coating to improve its reliability and have an ergonomic look corresponding its high quality.
  • AF for autofocus.
  • DX - for digital SRL Canon EF-S and Nikon DX  APS-C cameras only.  
  • IF - internal focusing (the lens size does not change, the front element does not rotate).
  • SD - Super Low Dispersion glass is used to minimize aberrations and increase contrast (dark blue on the optical scheme).
  • AS -  aspherical lenses are used. (marked red on the optical scheme).

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Posted by: dv   Date of publication: 27.01.2012


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