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Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6 Lens

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Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6  lens

Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6  lens

Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6  lens

MTF-charts

Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6  MTF Chart

Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6  MTF Chart

Optical design

Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6  optical design

Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6  optical design

Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6  optical design

Format: APS-C (crop)

Type: Zoom lens

Focusing: Auto Focus (AF)

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

First year of production: 2009

Optical design: 15/9 (3 ASF + 2 SLD)

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Average price: $640

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
16mm - 135mmf/3.5 - f/5.6f/2290.577610/21,578/3,1

Additional information:

The Tokina AT-X 16.5-135 mm DX f/ 3.5-5.6

  • diagonal angle of view 81°19'- 12°14'
  • Equivalent focal length for Canon 26.4-216 mm
  • Equivalent focal length for Nikon 24.75-202.5 mm
  • diameter 84 mm
  • max. focal length 14 cm
  • max. magnification 1:5.43
  • minimum aperture  22 - 36
  • internal focusing
  • It is not equipped with a built-in motor AF drive for Nikon
  • multilayer coating
  • rotation angle of the focusing ring approx. 40°
  • both Canon and Nikon have the same direction of the zoom ring rotation
  • BH777 petal hood and carrying case are included with the lens

The Tokina AT-X 16.5-135mm DX F/3.5-5.6is an all-purpose zoom lens with a wider angle for DSLR Canon EF-F and Nikon DX  APS-C cameras and cannot be used on full-frame cameras. The optical scheme of the  lens includes three aspherical elements: one molded and two composite elements which secure high sharpness and contrast. Two elements of  low-dispersion glass combat chromatic aberrations and vignetting.

 

A small rotation angle of the  focusing ring, on the one hand, makes autofocus faster, and on the other hand, decreases focusing accuracy in manual mode.

A very long period from the time of the first announcement to delivery, as well as five expensive glass elements, average quality slow zoom played a mean trick - the owners have not been found at http://www.flickr.com (as for Oct., 2010).

Evaluation of  Tokina designations:

  • AT-X (advanced technology extra) - the lens is designed by means of  advanced and new technologies and high-quality materials.
  • AF for autofocus.
  • DX - for digital SRL Canon EF-S and Nikon DX  APS-C cameras only.  
  • IF - internal focusing (the lens does not extend, the front element do not rotate).
  • SD - Super Low Dispersion glass is used to minimize aberrations and increase contrast
  • AS - the use of aspherical lenses.

Links to online resources:
PDF Files:
Posted by: dv   Date of publication: 25.10.2010


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Optical quality0.000
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